CURRENT PROJECTS AT THE BYURAKAN OBSERVATORY (2000-2008)

 

Altogether, 97 large and small projects are currently active in Byurakan; many of them are in collaboration with foreign countries or other institutions in Armenia. Most of the projects are led by the Byurakan astronomers (principal investigators, PIs).

 

Below is the list of all current projects (sorted by fields of investigations); titles, main research topics, investigators, collaborations, number of publications and link to the list of papers, grants and fellowships, and contact persons (typically the PIs) are given for each project. To make it easy investigating this list, one can view projects by:

 

Subjects

Principal Investigator (PI)

Collaborating countries and institutions

Grants and fellowships

Publications (projects having at least 4 publications during 2000-2008)

 


 

Solar System

 

Sun and Solar Physics

 

Project: Radiation of Coronal Supra-thermal Steams

Topics: Analysis and Interpretation of the Radiation of Coronal Supra-thermal Streams

Team: A.G. Nikoghossian

Collaborations: France

Publications in 2000-2008: 5

Grants: PICS travel grants

Contact: A.G. Nikoghossian

 

Project: Passage of the Sun through Dense Molecular Clouds

Topics: Effects induced by the passage of the Sun through dense molecular clouds; flow outside of the compressed heliosphere

Team: Ar.G. Yeghikyan

Collaborations: Germany

Publications in 2000-2008: 2

Grants:

Contact: Ar.G. Yeghikyan

 

Solar System  

 

Project: Cosmic Matter in the Solar System

Topics: Theoretical investigation of cosmic ray processing of solar system ices; Non-biogenic petroleum on primordial Earth

Team: Ar.G. Yeghikyan

Collaborations: Italy

Publications in 2000-2008: 2

Grants:

Contact: Ar.G. Yeghikyan

 

Project: Search and Study of Asteroids in the DFBS

Topics: New asteroids detected on the DFBS plates; Massive physical and dynamical characterization of known asteroids

Team: A.M. Mickaelian, K.S. Gigoyan

Collaborations: IMCCE, Observatoire de Paris-Meudon and Service d’Aeronomie, IPSL, France; Abastumani Astrophysical Observatory (GENAO), Georgia

Publications in 2000-2008: 1

Grants: FP7 Europlanet and PICS travel grants

Contact: A.M. Mickaelian

Main webpage of the project

 

 

Physics of Stars and Nebulae

 

Stars: general (Classification, Photometry, Polarization) 

 

Project: Stellar Classification

Topics: Two dimensional MK spectral classification of stars; Classification of stars by the reddening-free parameters Q and D

Team: R.Kh. Hovhannessian, R.A. Epremian

Collaborations: Georgia

Publications in 2000-2008: 3

Grants:

Contact: R.Kh. Hovhannessian

 

Project: Identification of Peculiar A Stars

Topics: Analysis of equivalent widths of spectral lines and identification of peculiar A stars

Team: J.B. Hovhanesyan

Collaborations:

Publications in 2000-2008: 1

Grants:

Contact: J.B. Hovhanesyan

 

Project: Polarimetric and Photometric Observations of Stars

Topics: Polarimetric and photometric observations of the stars m Cep, SAO 124414, and CH Cygni

Team: N.D. Melikian, M.H. Eritsian, A.A. Karapetian

Collaborations: France, Spain

Publications in 2000-2008: 3

Grants: PICS travel grants

Contact: N.D. Melikian, M.H. Eritsian

 

Project: Circular Polarization of Starlight

Topics: Selection and publication of the catalog of stars having circular polarization

Team: M.H. Eritsian

Collaborations:

Publications in 2000-2008: 2

Grants:

Contact: M.H. Eritsian

 

Flare & T Tau stars

 

Project: Observations of Flare Stars in Solar Neighbourhood and New Flare Stars in Galactic Dark Clouds

Topics: Observations of flare stars EV Lac, Y Ori, HU Del, CR Dra, and Wolf 424AB; New M-type variables in Galactic Dark Clouds

Team: N.D. Melikian, A.A. Karapetian

Collaborations: Australia, France, Georgia, Russia, Spain

Publications in 2000-2008: 8

Grants: PICS travel grants

Contact: N.D. Melikian

 

Project: Flare Stars in Pleiades Cluster

Topics: Reconstruction of the three-dimensional density distribution of flare stars in the Pleiades; Two-color parallel observations of flares

Team: H.S. Chavushian, H.V. Pikichian, Arm.V. Oskanian, G.H. Broutian

Collaborations: Germany

Publications in 2000-2008: 2

Grants:

Contact: H.S. Chavushian

 

Project: Detailed Study of the T Tau Star AA Tau and New T Tau Stars

Topics: UBVRI light curves and magnetospheric accretion-ejection processes in AA Tau; Probable T Tauri stars in MBM 12

Team: T.Yu. Magakian, T.H. Movsessian, E.H. Nikogossian

Collaborations: France, Japan, Kazakhstan

Publications in 2000-2008: 5

Grants:

Contact: T.Yu. Magakian

 

Project: Flare Star Activity and Frequency Distribution of Flares

Topics: Frequency distribution function of stellar flares and variation in the flaring activity of flare stars in Pleiades and Orion aggregates

Team: A.A. Akopian, E.S. Parsamian, L.A. Sargsyan

Collaborations:

Publications in 2000-2008: 5

Grants:

Contact: E.S. Parsamian, A.A. Akopian

 

Project: Observations of Flare Stars in Solar Neighbourhood and Light Curves of Stellar Flares

Topics: Observations of flare stars EV Lac, AD Leo, and V577 Mon; A unified phenomenological model of light curves of stellar flares

Team: V.P. Zalinian

Collaborations: Mexico

Publications in 2000-2008: 3

Grants:

Contact: V.P. Zalinian

 

Young Stellar Objects (YSOs): HH objects, Jets, etc.

 

Project: Search for HH-Objects and Emission-Line Stars in Star Forming Regions

Topics: Search for HH-objects and emission-line stars in star forming regions: Lynds 1340 dark cloud, region of GM1-61, GM 1-64/GM 2-4, GM 2-30, GM 2-41, and V453 Ori, Perseus, NGC 7129

Team: T.Yu. Magakian, T.H. Movsessian, E.H. Nikogossian

Collaborations: USA

Publications in 2000-2008: 7

Grants: ANSEF-2006: E.H. Nikogossian (PI), Search and the Proper Motions of Herbig-Haro Objects in the Star Forming Regions

Contact: T.Yu. Magakian

 

Project: Spectroscopic Study of Young Stellar Objects

Topics: Spectroscopic studies (including 3D spectroscopy) of Herbig-Haro objects, cometary nebulae, and jets

Team: T.Yu. Magakian, T.H. Movsessian, E.H. Nikogossian, E.R. Hovhannessian, D.M. Sargsyan

Collaborations: France, Germany, Japan, Russia, UK, USA

Publications in 2000-2008: 15

Grants: ANSEF-2002: T.Yu. Magakian (PI), Searches and Detailed Studies of Outflows from PMS Stars

INTAS and NFSAT grants; PICS and DAAD travel grants

Contact: T.Yu. Magakian

 

Project: Near-IR Study of the Star Formation Region in Cygnus OB7 Complex

Topics: Near-IR spectroscopy of young stars in the Braid nebula star formation region in Cygnus OB7

Team: T.Yu. Magakian, T.H. Movsessian, E.H. Nikogossian

Collaborations: Portugal, UK, USA

Publications in 2000-2008: 1

Grants: ANSEF-2008: E.H. Nikogossian (PI), The investigation of the very active star formation region in Cygnus OB7 complex

Contact: E.H. Nikogossian

 

Project: Search and Study of New Young Stellar Objects

Topics: Young stellar objects in the star-forming regions: H-alpha stars, HHL objects, and cometary nebulae

Team: N.D. Melikian, A.A. Karapetian, H.A. Harutyunian

Collaborations: Spain

Publications in 2000-2008: 3

Grants:

Contact: N.D. Melikian

 

Project: Galactic Molecular Clouds and Star Forming Regions

Topics: Study of Southern Galactic molecular clouds / star formation regions; observations of Herbig-Haro objects and their outflows

Team: A.L. Gyulbudaghian

Collaborations: Chile

Publications in 2000-2008: 5

Grants:

Contact: A.L. Gyulbudaghian

 

Fuors and Subfuors 

 

Project: Spectroscopic Observations of Subfuors

Topics: Spectroscopic observations of subfuors (Exors) V1118 and V1143 Ori

Team: E.S. Parsamian

Collaborations: Mexico

Publications in 2000-2008: 5

Grants:

Contact: E.S. Parsamian

 

Project: Study of a FU Orionis Type Object in the Cygnus OB7 Molecular Cloud

Topics: Observations of an outbursting protostar of the FU Orionis type in the Cygnus OB7 molecular cloud

Team: T.H. Movsessian, T.Yu. Magakian, E.H. Nikogossian

Collaborations: Portugal, Russia, UK, USA

Publications in 2000-2008: 2

Grants:

Contact: T.H. Movsessian

 

Carbon stars  

 

Project: Search and Study of Carbon Stars in the Galactic Halo

Topics: Survey for distant AGB carbon stars in the Galactic halo, including search in FBS and 2MASS; Spectroscopic study of carbon stars

Team: K.S. Gigoyan, H.V. Abrahamian, A.M. Mickaelian

Collaborations: France, Germany, Italy, UK

Publications in 2000-2008: 10

Grants: PICS and DAAD travel grants

Contact: K.S. Gigoyan

 

Variable Stars: Cataclysmic Variables, Pulsars, Mira Variables, Cepheids

 

Project: The radio luminosity of pulsars and the distribution of interstellar electron density

Topics: Study of the distribution of interstellar electron density in the Galaxy based on the radio luminosities of pulsars; Distribution of free electrons in the Galactic plane

Team: R.R. Andreasyan, T.G. Arshakian

Collaborations: Germany

Publications in 2000-2008: 2

Grants: ANSEF-2004: R.R. Andreasyan (PI), The Distribution of Free Electrons in the Galaxy

Contact: R.R. Andreasyan

 

Project: Statistical Studies of Radio Pulsars

Topics: Dependence of parameters of radio pulsars radiation on their age; spatial distribution of pulsars and their relation to Supernovae remnants

Team: V.H. Malumian, A.N. Harutyunyan

Collaborations:

Publications in 2000-2008: 5

Grants:

Contact: V.H. Malumian

 

Project: Detailed Study of the Bright Cataclysmic Variable RX J1643.7+3402

Topics: Discovery and detailed photometric and spectroscopic study of the bright cataclysmic variable RX J1643.7+3402

Team: A.M. Mickaelian, S.K. Balayan

Collaborations: France

Publications in 2000-2008: 2

Grants: PICS travel grants

Contact: A.M. Mickaelian

 

Project: Spectral Study of the Novalike Star TT Ari

Topics: Spectral observations of the Novalike cataclysmic variable TT Ari

Team: N.D. Melikian, A.A. Karapetian, G.R. Kostandyan

Collaborations: Spain

Publications in 2000-2008: 2

Grants:

Contact: N.D. Melikian

 

Project: Period-Luminosity Relations for Classical Cepheids

Topics: Absolute calibration of the Period-Luminosity (PL) relations for the classical Cepheids based on the HIPPARCOS parallaxes and the distances of the Magellanic Clouds; calibration of the distances of HST program galaxies

Team: H.V. Abrahamian

Collaborations:

Publications in 2000-2008: 3

Grants:

Contact: H.V. Abrahamian

 

Project: Study of AGB and Post AGB Stars

Topics: Photometric and polarimetric observations of AGB and post AGB stars

Team: N.D. Melikian, A.A. Karapetian

Collaborations: Australia, France

Publications in 2000-2008: 1

Grants: PICS travel grants

Contact: N.D. Melikian

 

Project: Search and Study Mira variables

Topics: Search and study of long-period AGB Mira variables in the FBS

Team: K.S. Gigoyan

Collaborations: France

Publications in 2000-2008: 1

Grants: PICS travel grants

Contact: K.S. Gigoyan

 

Visual Binaries 

 

Project: Spectral, Photometric, and Speckle Studies of Visual Binaries

Topics: Spectral, photometric, and speckle observations of visual binaries; determination of orbital parameters, dynamical masses, and MK types

Team: N.D. Melikian, A.A. Karapetian

Collaborations: Mexico, Russia, Spain

Publications in 2000-2008: 6

Grants:

Contact: N.D. Melikian

 

Stellar associations  

 

Project: Study of the Regions of Young Stellar Clusters

Topics: Distribution of early-type stars and dusty matter in the direction of the stellar clusters

Team: R.Kh. Hovhannessian, R.A. Epremian

Collaborations:

Publications in 2000-2008: 2

Grants:

Contact: R.Kh. Hovhannessian

 

Project: Polarimetric Study of Stellar Associations

Topics: Polarimetric investigations of stellar associations

Team: M.H. Eritsian, R.Kh. Hovhannessian

Collaborations:

Publications in 2000-2008: 1

Grants:

Contact: R.Kh. Hovhannessian, M.H. Eritsian

 

Project: Search and Study of T-Associations in the Cyg OB7 Region

Topics: Search for new T associations in Cyg OB7; Spectral and photographic studies of the known T association in the neighborhood of Cyg OB7

Team: N.D. Melikian, A.A. Karapetian

Collaborations: Spain

Publications in 2000-2008: 3

Grants:

Contact: N.D. Melikian

 

Project: Study of the New OB Association in Pup-CMa

Topics: Study of the molecular clouds toward a new OB Association in Pup-CMa; velocity distribution of stars in the Pup-CMa association

Team: A.L. Gyulbudaghian, A.A. Akopian

Collaborations: Chile

Publications in 2000-2008: 2

Grants:

Contact: A.L. Gyulbudaghian

 

Nebulae

 

Project: Catalog of Reflection Nebulae

Topics: Compilation and publication of the Merged catalog of reflection nebulae

Team: T.Yu. Magakian

Collaborations:

Publications in 2000-2008: 2

Grants:

Contact: T.Yu. Magakian

 

Project: Spectrophotometry of Planetary Nebulae

Topics: Spectrophotometric study of three planetary nebulae

Team: E.S. Parsamian

Collaborations: Mexico, Yerevan State University (YSU)

Publications in 2000-2008: 1

Grants:

Contact: E.S. Parsamian

 

Project: Search and Study of Dark Globules

Topics: Search and studies of dark globules in Southern regions; rotation of isolated globules; radial system of dark globules in Monoceros

Team: A.L. Gyulbudaghian

Collaborations: Chile

Publications in 2000-2008: 4

Grants:

Contact: A.L. Gyulbudaghian

 

Interstellar Matter (ISM)  

 

Project: The Formation of Heavy Molecules in Molecular Clouds and Related Phenomena

Topics: Cosmic rays induced polycondensate hydrocarbons in the giant molecular clouds; Terrestrial atmospheric effects induced by counterstreaming dense interstellar cloud material

Team: Ar.G. Yeghikyan

Collaborations: Germany, Italy, UK

Publications in 2000-2008: 9

Grants:

Contact: Ar.G. Yeghikyan

 

 

Extragalactic Astronomy

 

Galaxies: general (Bars, Magnetic Fields, Origin, etc.)

 

Project: Investigation of Barred Galaxies

Topics: Comparative statistics of SB and SA galaxies: cold gas properties, near and mid-IR regions; Distribution of galaxies with respect to the directions of the bars of SB galaxies

Team: A.T. Kalloghlian, R.A. Kandalyan, H.A. Harutyunian

Collaborations: Jordan

Publications in 2000-2008: 3

Grants:

Contact: A.T. Kalloghlian

 

Project: The Magnetic Field Models of Galaxies with the SKA

Topics: The magnetic field models of galaxies with the Square Kilometer Array (SKA); Magnetic field structures of galaxies derived from analysis of Faraday rotation measures; Evolution of magnetic fields in galaxies and future observational tests with the SKA; Testing the cosmological evolution of magnetic fields in galaxies

Team: T.G. Arshakian

Collaborations: Germany, Russia

Publications in 2000-2008: 4

Grants:

Contact: T.G. Arshakian

 

Project: Magnetic Fields in the Galaxy and AGNs

Topics: Magnetic field in selected directions of the Galaxy: direction of the spiral arm of Sagittarius; formation of dipolar magnetic fields in the central regions of active galaxies

Team: R.R. Andreasyan, M.A. Hovhannissian

Collaborations: France

Publications in 2000-2008: 2

Grants: ANSEF-2005: R.R. Andreasyan (PI), The 3-D structure of the magnetic field of the Galaxy

PICS travel grants

Contact: R.R. Andreasyan

 

Project: cD Galaxies and Galaxy Origin in Clusters

Topics: The nature of cD galaxies; testing Ambartsumian's idea of galaxy origin by galaxy cluster shapes

Team: H.A. Harutyunian

Collaborations: Czech Republic, Poland

Publications in 2000-2008: 2

Grants:

Contact: H.A. Harutyunian

 

Active Galactic Nuclei (AGN)

 

Project: Search and Study of Bright QSOs

Topics: Discovery of new bright quasars among the FBS blue stellar objects and ROSAT X-ray sources; study of the surface brightness of bright QSOs; the completeness of the Bright Quasar Survey (BQS); Surface density of bright AGN in Byurakan surveys

Team: A.M. Mickaelian, S.K. Balayan, S.A. Hakopian; L.K. Erastova

Collaborations: France, Germany, Mexico, China

Publications in 2000-2008: 8

Grants: PICS, ANR, and DFG travel grants

Contact: A.M. Mickaelian; L.K.Erastova

 

Project: Comparative Study of Galaxies with Different Nuclear Activity

Topics: Comparative study of galaxies with different nuclear activity: the North Galactic Pole +30° zone galaxies

Team: A.R. Petrosian

Collaborations: USA

Publications in 2000-2008: 1

Grants: STScI fellowship

Contact: A.R. Petrosian

 

Project: Multiwavelength Properties of Seyfert Galaxies and LINERs

Topics: Broad-band radio to X-ray properties of Seyfert galaxies; Relationship between Infrared and radio emission of Seyfert galaxies and LINERs

Team: R.A. Kandalyan; V.H. Malumian, V.G. Panajyan

Collaborations: Jordan

Publications in 2000-2008: 3

Grants:

Contact: R.A. Kandalyan; V.H. Malumian

 

Project: Study of BL Lac Objects

Topics: Light curve of ON 231 (W Com) in the period 1969-1976; Spectroscopic observations of ON 231 in a high luminosity state; New BL Lac candidates from the FBS; Probable associations of BL Lac objects with Zwicky and Abell clusters

Team: L.K. Erastova; T.H. Movsessian, G.A. Ohanian; O.Kh. Torosyan

Collaborations: Italy

Publications in 2000-2008: 4

Grants:

Contact: L.K.Erastova; T.H. Movsessian; G.A. Ohanian

 

Project: Study of Double and Multiple Nuclei Active Galaxies

Topics: The multi-nuclei features of some Markarian galaxies; Study of the physical mechanism of activity

Team: E.Ye. Khachikian, G.T. Ter-Kazarian, L.A. Sargsyan

Collaborations: USA

Publications in 2000-2008: 3

Grants: ANSEF-2006: G.T. Ter-Kazarian (PI), Multi-Nuclei Features of Markarian Galaxies and Physical Mechanism Beyond

Contact: E.Ye. Khachikian, G.T. Ter-Kazarian

 

Project: Study of Active Dwarf Galaxies

Topics: Sizes of active galaxies; Active dwarf galaxies as circumnuclear regions of LSB-galaxies

Team: L.K. Erastova

Collaborations:

Publications in 2000-2008: 2

Grants:

Contact: L.K.Erastova

 

Project: AGNs in Shahbazian Compact Groups

Topics: Search and study of AGNs in Shahbazian compact groups

Team: A.S. Amirkhanian, An.G. Egikian

Collaborations: Germany

Publications in 2000-2008: 1

Grants:

Contact: A.S. Amirkhanian, An.G. Egikian

 

Project: Quasars in the Regions of Clusters of Galaxies

Topics: Counts of quasars in the regions of rich clusters of galaxies; Luminosity function for quasar samples from areas of the clusters of galaxies

Team: H.A. Harutyunian, E.H. Nikogossian

Collaborations: Spain

Publications in 2000-2008: 2

Grants:

Contact: H.A. Harutyunian

 

Project: Active Galaxies in HyperLEDA

Topics: Activity type of galaxies in HyperLEDA database; Definition of criteria for revealing active galaxies among the SDSS objects

Team: A.M. Mickaelian

Collaborations: France, Serbia

Publications in 2000-2008: 1

Grants: PICS and ANR travel grants

Contact: A.M. Mickaelian

 

Project: The Variability of Markarian 6

Topics: The variability of the Seyfert galaxy Markarian 6; Rapid profile variations in the broad Ha line of Markarian 6

Team: N.S. Asatrian, E.Ye. Khachikian, N.B. Yengibarian

Collaborations: Germany

Publications in 2000-2008: 2

Grants:

Contact: N.S. Asatrian, E.Ye. Khachikian

 

Project: Study of Kazarian Galaxies

Topics: Morphological and spectral study of Kaz 73; Spectral variability of Kaz 102; the active galaxy Kaz 49

Team: A.M. Mickaelian; T.H. Movsessian; A.A. Yeghiazarian

Collaborations: Yerevan State University (YSU)

Publications in 2000-2008: 3

Grants: PICS and ANR travel grants

Contact: A.M. Mickaelian; T.H. Movsessian; A.A. Yeghiazarian

 

Starbursts

 

Project: Studies of Local Starburst Galaxies

Topics: HST/ACS Ly-alpha images of local starburst galaxies; Extended tidal structure in Ly-alpha-emitting starburst galaxies; Local Ly-alpha emitters and their relevance to high-redshift star-forming galaxies; Study of HII regions in nearby galaxies

Team: A.R. Petrosian, A.A. Hakobyan, A.A. Yeghiazarian, A.A. Sinanian

Collaborations: France, USA

Publications in 2000-2008: 10

Grants: STScI fellowship, PICS travel grants

Contact: A.R. Petrosian

 

Project: Star Formation Properties of Spiral Galaxies

Topics: Star formation properties of spiral galaxies; velocity field and kinematics of galaxies

Team: R.A. Kandalyan, A.T. Kalloghlian

Collaborations: Jordan

Publications in 2000-2008: 2

Grants:

Contact: R.A. Kandalyan

 

Project: 2D Spectroscopic Studies of Starburst Galaxies

Topics: 2D spectroscopy of galaxies with star formation regions; Velocity fields in galaxies with centers of starburst

Team: E.Ye. Khachikian; S.A. Hakopian, S.K. Balayan; T.H. Movsessian

Collaborations: Russia

Publications in 2000-2008: 2

Grants:

Contact: E.Ye. Khachikian; S.A. Hakopian

 

Project: Detection of Star Forming High Redshift Galaxies

Topics: Optical methods for detection of star forming high redshift galaxies: multiband photometry and follow-up spectroscopy

Team: T.H. Movsessian, S.K. Balayan

Collaborations: France, Russia

Publications in 2000-2008: 1

Grants:

Contact: T.H. Movsessian, S.K. Balayan

 

Infrared galaxies

 

Project: Spectroscopic Study of BIG Objects

Topics: Spectroscopic studies of the Byurakan-IRAS Galaxies (BIGs); Redshift survey and classification; Statistical study of properties of BIG objects; Derivation of the maximum IR luminosity of a single spiral galaxy; Multiple IRAS galaxies and interacting/merging systems among the BIG objects

Team: A.M. Mickaelian, S.A. Hakopian, S.K. Balayan, L.A. Sargsyan

Collaborations: France, Russia

Publications in 2000-2008: 11

Grants: ANSEF-2001: A.M. Mickaelian (PI), Study of Starburst/AGN/Interaction Phenomena in IRAS Galaxies

PICS travel grants

Contact: A.M. Mickaelian

 

Project: Search and Study of Obscured IRAS Galaxies and ULIRGs

Topics: Search for obscured IR galaxies among the BIG objects; Compilation of a sample of the highest IR/opt flux ratio IRAS-FSC extragalactic sources; Spitzer IRS spectra of optically extremely faint IRAS sources; Study of ULIRGs

Team: A.M. Mickaelian, L.A. Sargsyan

Collaborations: USA

Publications in 2000-2008: 3

Grants: NSF/NASA travel grants

Contact: A.M. Mickaelian

 

Project: Study of IR and Radio Emission of Spiral Galaxies

Topics: Relationship between infrared and radio emission of spiral galaxies

Team: V.H. Malumian

Collaborations:

Publications in 2000-2008: 1

Grants:

Contact: V.H. Malumian

 

Radiogalaxies

 

Project: Classical Double Radio Sources

Topics: An asymmetric relativistic model for classical double radio sources; Kiloparsec jet speeds in classical double radio sources and comparison with FRI sources; Optical spectroscopy of compact radio AGN; Optical variability related to the radio jet; Probing the gravitational redshift effect from the relativistic jets of compact AGN; Direct evidence of the receding 'torus' around AGN of FRII radio galaxies and quasars; Cosmological evolution of compact AGN

Team: T.G. Arshakian

Collaborations: Germany, Mexico, Russia, UK

Publications in 2000-2008: 21

Grants:

Contact: T.G. Arshakian

 

Project: Study of Extended Extragalactic Radio Sources

Topics: Ellipticity of nearby elliptical galaxies identified with extended extragalactic radio sources; The orientation of magnetic fields in extragalactic radiosources; Correlation between the directions of the magnetic fields and major axes of extragalactic radio sources; Neutral hydrogen in the nearby 3C radio galaxies

Team: R.R. Andreasyan, G.M. Paronyan

Collaborations: France

Publications in 2000-2008: 4

Grants: PICS travel grants

Contact: R.R. Andreasyan

 

Project: Study of OH Megamaser Galaxies

Topics: Properties of OH megamaser galaxies in the radio continuum; X-Ray and radio emission from OH megamaser galaxies; Physical conditions in OH megamaser galaxies

Team: R.A. Kandalyan

Collaborations: Germany, Jordan

Publications in 2000-2008: 7

Grants:

Contact: R.A. Kandalyan

 

Project: Identification and Study of Extragalactic Radio Sources

Topics: Study of extended radio sources; Statistical identification and multi-frequency investigation of extragalactic compact radio sources

Team: M.A. Hovhannissian, E.Ye. Khachikian, A.N. Harutyunyan

Collaborations:

Publications in 2000-2008: 1

Grants: ANSEF-2001: E.Ye. Khachikian (PI), Radio and Optical Investigations of Extragalactic Objects

ANSEF-2002: M.A. Hovhannissian (PI), The Investigation of the Extended Radio Galaxies

Contact: M.A. Hovhannissian

 

Project: Study of Different Types of Radio Sources with Various Linear Sizes

Topics: Different types of radio sources with various linear sizes and possible evolution of radio galaxies; Integral field spectroscopy

Team: G.A. Ohanian, T.H. Movsessian

Collaborations:

Publications in 2000-2008: 1

Grants: ANSEF-2003: T.H. Movsessian (PI), Multi-Component Investigation of Extragalactic Radio Sources

ANSEF-2009: G.A. Ohanian (PI), Integral Field Spectroscopy of Different Types Radio Galaxies with Various Linear Sizes

Contact: G.A. Ohanian

 

Blue Compact Dwarf Galaxies (BCDGs)  

 

Project: Study of Blue Compact Dwarf Galaxies

Topics: Multi-wavelength study of a new sample of blue compact dwarf galaxies: optical multi-pupil spectroscopy and HI observations

Team: A.R. Petrosian, T.H. Movsessian

Collaborations: France, India, Russia, USA

Publications in 2000-2008: 4

Grants: STScI fellowship, PICS travel grants

Contact: A.R. Petrosian

 

Extragalactic Supernovae

 

Project: Supernovae in Active and Star Forming Galaxies

Topics: Supernovae in active and star forming galaxies; Supernovae in isolated galaxies, in pairs and groups of galaxies; The supernova rate per unit mass; Statistical investigation of type Ib/c and II supernovae and their host galaxies; Early-type galaxies with core collapse supernovae

Team: A.R. Petrosian, A.A. Hakobyan

Collaborations: France, Italy, USA

Publications in 2000-2008: 6

Grants: STScI fellowship, PICS travel grants

Contact: A.R. Petrosian

 

Project: Supernovae Explosions Frequency Distribution Function

Topics: Determination of SNe explosions frequency distribution function: method and numerical simulations

Team: A.A. Akopian

Collaborations:

Publications in 2000-2008: 1

Grants:

Contact: A.A. Akopian

 

Markarian galaxies  

 

Project: The Optical Database and Atlas of Markarian Galaxies

Topics: Morphology of Markarian galaxies; Preparation and publication of the optical database and atlas of Markarian galaxies

Team: A.R. Petrosian

Collaborations: USA

Publications in 2000-2008: 3

Grants: STScI fellowship

Contact: A.R. Petrosian

 

Project: Spectrophotometric Study of Some Markarian Galaxies

Topics: Spectrophotometric study of the region of the sky around the galaxies Markarian 261 and 262

Team: E.Ye. Khachikian, L.A. Sargsyan

Collaborations:

Publications in 2000-2008: 2

Grants:

Contact: E.Ye. Khachikian

 

SBS galaxies

 

Project: Studies of the SBS Galaxies

Topics: Studies of the Second Byurakan Survey (SBS) galaxies: mergers, interacting systems, and close pairs; comparison of ultraviolet-excess and emission-line techniques; The relation of the SBS galaxies with Zwicky clusters; HI-observations of interacting and merging galaxies from the SBS

Team: A.R. Petrosian, M.V. Gyulzadian

Collaborations: USA

Publications in 2000-2008: 7

Grants: STScI fellowship

Contact: A.R. Petrosian

 

Project: Spectral Study of the SBS Galaxies in the Selected Fields

Topics: Spectral investigation of galaxies of the Second Byurakan Survey (SBS) in selected (deep) fields; Objects with continuum spectrum in the SBS

Team: S.A. Hakopian, S.K. Balayan

Collaborations: Russia

Publications in 2000-2008: 7

Grants: ANSEF-2004: S.A. Hakopian (PI), 3D-study of SBS galaxies

Contact: S.A. Hakopian

 

Groups and Clusters of Galaxies 

 

Project: Statistical Study of Groups of Galaxies

Topics: Relationship between the morphological type of the brightest galaxy and the morphological content of the remaining members in a loose group of galaxies; Effect of observational selection on the relationship between the characteristics and distance of groups and a comparison with the groups of Geller and Huchra

Team: A.P. Mahtessian, V.H. Movsisyan

Collaborations:

Publications in 2000-2008: 2

Grants: ANSEF-2006: A.P. Mahtessian (PI), The Influence of the Surroundings on the Physical Characteristics of Galaxies in Groups

Contact: A.P. Mahtessian

 

Project: Study of Shahbazian Compact Galaxy Groups

Topics: Photometric, spectroscopic, and X-ray study of the Shahbazian compact galaxy groups

Team: A.S. Amirkhanian, An.G. Egikian

Collaborations: Germany, Mexico, Russia

Publications in 2000-2008: 3

Grants:

Contact: A.S. Amirkhanian, An.G. Egikian

 

Project: Search and Study of Chain-Like Groups of Compact Galaxies

Topics: The list of chain-like groups of galaxies; Photometry of chain-like groups of compact galaxies

Team: E.H. Nikogossian, R.A. Vardanian

Collaborations: France, Spain

Publications in 2000-2008: 2

Grants: PICS travel grants

Contact: E.H. Nikogossian

 

Project: Structure of the Clusters of Galaxies

Topics: Structure and dynamical properties of the Abell clusters of galaxies

Team: E.H. Nikogossian

Collaborations: France, Spain, Yerevan Physics Institute (YerPhI)

Publications in 2000-2008: 4

Grants: PICS travel grants

Contact: E.H. Nikogossian

 

Project: Study of the Structure of the Coma Cluster

Topics: Study of the structure of the Coma cluster based on a hierarchical force clustering method; Flattening of galaxies of different morphological types in subclusters of Coma

Team: A.T. Kalloghlian

Collaborations: Georgia

Publications in 2000-2008: 4

Grants:

Contact: A.T. Kalloghlian

 

 

Surveys

 

First Byurakan Survey (FBS) 

 

Project: The FBS Blue Stellar Objects

Topics: Search for Blue Stellar Objects (BSOs) in the First Byurakan (Markarian) Survey: bright QSOs and Seyferts, cataclysmic variables, white dwarfs, hot subdwarfs, HBB stars, etc.; spectroscopic observations; study of the populations of these objects; development of criteria for search for BSOs in the DFBS; comparison with other surveys; DSS1/DSS2 astrometry of the FBS objects and investigation of proper motions; Publication of the Revised and Updated Catalog of the FBS blue stellar objects

Team: A.M. Mickaelian, P.K. Sinamyan, H.V. Abrahamian

Collaborations: France, Italy

Publications in 2000-2008: 14

Grants: PICS travel grants

Contact: A.M. Mickaelian

 

Project: The FBS Late-Type Stars

Topics: Search and study of the late-type (M and C) stars in the First Byurakan Survey (FBS); IR properties; Luminosities of the FBS late type M stars; Publication of the Catalog of the FBS late type stars

Team: K.S. Gigoyan, H.V. Abrahamian, P.K. Sinamyan

Collaborations: France, Germany, UK

Publications in 2000-2008: 15

Grants: PICS and DAAD travel grants

Contact: K.S. Gigoyan

 

Second Byurakan Survey (SBS) 

 

Project: SBS Results and Statistical Studies

Topics: Accurate optical positions for 2978 objects from the Second Byurakan Survey (SBS); Spectroscopy and photometry of galaxies and stellar objects; Statistical study of the content of the survey; Properties of the SBS galaxies

Team: L.K. Erastova

Collaborations: Mexico, Russia, USA

Publications in 2000-2008: 7

Grants:

Contact: L.K.Erastova

 

 

Multiwavelength Astronomy

 

IR sources

 

Project: Optical Identification and Study of IRAS Sources

Topics: Optical identification of IRAS infrared sources based on the DSS images and the FBS low-dispersion spectra; Compilation of the Byurakan-IRAS Galaxies (BIG) and Byurakan-IRAS Stars (BIS) samples; Publication of the Revised and updated catalog of the Byurakan-IRAS Stars

Team: A.M. Mickaelian, K.S. Gigoyan, L.A. Sargsyan

Collaborations:

Publications in 2000-2008: 12

Grants:

Contact: A.M. Mickaelian

 

Project: Study of Stars with Infrared Excesses

Topics: Polarimetric studies of stars with an infrared emission excess; Gas-dust shells around some early-type stars with an IR emission excess

Team: R.Kh. Hovhannessian, M.H. Eritsian, E.R. Hovhannessian

Collaborations:

Publications in 2000-2008: 3

Grants:

Contact: R.Kh. Hovhannessian

 

Project: Interpretation of Unidentified Infrared Bands

Topics: A new model for the interpretation of the unidentified infrared bands (UIBs)

Team: Ar.G. Yeghikyan

Collaborations: Italy

Publications in 2000-2008: 1

Grants:

Contact: Ar.G. Yeghikyan

 

Radio sources

 

Project: Optical Identification of Radio Sources

Topics: Optical identification of weak and compact radio sources

Team: M.A. Hovhannissian, A.P. Mahtessian, V.H. Movsisyan

Collaborations: Russia

Publications in 2000-2008: 1

Grants:

Contact: M.A. Hovhannissian

 

Project: Study of the Radio Source Cassiopeia A

Topics: Variation of Flux Density of the Radio Source Cassiopeia A

Team: V.A. Sanamian

Collaborations: Institute of Radiophysics and Electronics (IRPhE), NAS RA

Publications in 2000-2008: 2

Grants:

Contact: V.A. Sanamian

 

X-ray sources

 

Project: Optical Identification and Study of ROSAT Sources

Topics: Optical identification of ROSAT-FSC X-ray sources; Compilation and publication of the Byurakan-Hamburg-ROSAT Catalog (BHRC); Spectroscopic studies of the selected ROSAT sources

Team: A.M. Mickaelian, S.K. Balayan, S.A. Hakopian, L.R. Hovhannisyan

Collaborations: Germany, France, Mexico, China

Publications in 2000-2008: 4

Grants: DFG travel grants

Contact: A.M. Mickaelian

 

 

Cosmology and Theory

 

Cosmology

 

Project: Hubble Expansion and the Evolution of Cosmic Objects

Topics: Fragmentation of cosmic objects in the course of their evolution and the possible role of Hubble expansion in this process; Counts of faint blue objects and the anomalous redshift

Team: H.A. Harutyunian

Collaborations:

Publications in 2000-2008: 2

Grants:

Contact: H.A. Harutyunian

 

Theoretical Astrophysics  

 

Project: Radiative Transfer in Inhomogeneous Atmospheres

Topics: Radiative transfer in one-dimensional inhomogeneous atmospheres: Formation of spectral lines and their profiles in a dynamically active stochastic and multicomponent atmosphere; Diffuse reflection of line radiation from a semi-infinite turbulent atmosphere; Statistical description of the radiation field in a homogeneous medium of finite optical thickness; Fluctuations in the intensity of radiation emerging from a multicomponent stochastic atmosphere

Team: A.G. Nikoghossian

Collaborations: France

Publications in 2000-2008: 12

Grants: PICS travel grants

Contact: A.G. Nikoghossian

 

Project: Supersymmetric Microscopic Theory of the Standard Model

Topics: Supersymmetric microscopic theory of the standard model; Activity of galactic nuclei and superdense “protomatter” sources; Neutrino radiation of the AGN black holes

Team: G.T. Ter-Kazarian, L.A. Sargsyan

Collaborations:

Publications in 2000-2008: 3

Grants: ANSEF-2004: G.T. Ter-Kazarian (PI), An Activity of Galactic Nuclei and Superdense “Protomatter” Sources in the Universe; PICS travel grants

Contact: G.T. Ter-Kazarian

 

Project: Scattering of Radiation by Free Electrons

Topics: Scattering of radiation by free electrons: derivation of the angle-averaged redistribution function

Team: H.A. Harutyunian

Collaborations:

Publications in 2000-2008: 1

Grants:

Contact: H.A. Harutyunian

 

Project: Diffusional Radiation in Random Media

Topics: Study of the diffusional radiation in random media

Team: A.A. Akopian

Collaborations: Germany

Publications in 2000-2008: 1

Grants:

Contact: A.A. Akopian

 

 

Databases

 

Project: The Digitized First Byurakan Survey (DFBS)

Topics: Creation and publication of an electronic database of FBS plates; Digitization of the FBS (Markarian) plates and creation of the Digitized First Byurakan Survey (DFBS); Astrometric plate solution; Wavelength and photometric calibration; Extraction and analysis software; Creation of the DFBS database with digitized plates and extracted spectra; Webpage and user interface

Team: A.M. Mickaelian, L.A. Sargsyan, G.A. Mikayelyan, L.K. Erastova, K.S. Gigoyan, P.K. Sinamyan, L.R. Hovhannisyan

Collaborations: Italy, USA, Germany, Institute of Informatics and Automation Problems (IIAP), NAS RA

Publications in 2000-2008: 10

Grants: ANSEF-2002: A.M. Mickaelian (PI), Digitization of the First Byurakan Survey (FBS)

CRDF ARP1-2849-YE-06: A.M. Mickaelian (PI), Digitized First Byurakan Survey and Armenian Virtual Observatory

PICS, NSF/NASA, and Rome University travel grants

Contact: A.M. Mickaelian

Main webpage of the project

 

Project: Armenian Virtual Observatory (ArVO) and Grid

Topics: Creation of the Armenian Virtual Observatory (ArVO) based on the DFBS database;

Team: A.M. Mickaelian, T.Yu. Magakian, H.A. Harutyunian, L.A. Sargsyan, G.A. Mikayelyan, P.K. Sinamyan, L.R. Hovhannisyan

Collaborations: France, Italy, Georgia, Institute of Informatics and Automation Problems (IIAP), NAS RA

Publications in 2000-2008: 2

Grants: CRDF ARP1-2849-YE-06: A.M. Mickaelian (PI), Digitized First Byurakan Survey and Armenian Virtual Observatory

ISTC A1451: Development of Scientific Computing Grid on the Base of Armcluster for South Caucasian Region

ISTC A1606: Development of Armenian-Georgian Grid Infrastructure and applications in the Fields of High Energy Physics, Astrophysics and Quantum Physics

Contact: A.M. Mickaelian

Main webpage of the project

 

Project: Science Projects based on DFBS and ArVO

Topics: Development of science projects based on the DFBS and ArVO; Proper motions, variability studies, and object classification; Search and study of bright AGN, white dwarfs, other BSOs, extremely red objects (EROs), variable objects (Miras, CVs, and Blazars), asteroids, etc.

Team: A.M. Mickaelian, L.A. Sargsyan, K.S. Gigoyan, P.K. Sinamyan, L.R. Hovhannisyan

Collaborations: France, Italy

Publications in 2000-2008: 2

Grants: ANSEF-2007: A.M. Mickaelian (PI), Science with the Armenian Virtual Observatory

PICS, NSF/NASA, and Rome University travel grants

Contact: A.M. Mickaelian

Main webpage of the project

 

 

Instrumentation

 

Project: Development of Instrumentation for the 2.6m Telescope

Topics: ByuFOSC and SCORPIO spectral cameras for the 2.6m telescope; Integral Field Spectrograph (VAGR); Updating the control system of the telescope

Team: T.H. Movsessian, S.V. Zaratsian, V.P. Zalinian

Collaborations: France

Publications in 2000-2008: 2

Grants: ANSEF-2003: V.P. Zalinian (PI), Updating the Control of the Telescope ZTA-2.6; PICS travel grants; Sponsorship from Vivacell company

Contact: T.H. Movsessian

 

Project: Reconstruction of the 1m Schmidt Telescope

Topics: Renovation of the telescope; Reconstruction of the focal system; Equipping the telescope with 1 sq. deg field CCD detector

Team: S.K. Balayan

Collaborations: Russia

Publications in 2000-2008:

Grants: ANSEF-2007: S.K. Balayan (PI), Reconstruction of the BAO 1m Schmidt Type Telescope; Sponsorship from Vivacell company

Contact: S.K. Balayan

Main webpage of the project

 

Project: Reconstruction of the Byurakan Small Telescopes

Topics: Reconstruction of the Byurakan Observatory small telescopes; Equipping the small telescopes with digital devices

Team: A.S. Amirkhanian

Collaborations:

Publications in 2000-2008:

Grants: Sponsorship from Vivacell company

Contact: A.S. Amirkhanian

 

Project: Development of Data Visualization Interactive Network

Topics: Development of data visualization interactive network for the Aragats space-environmental center

Team: Ar.G. Yeghikyan

Collaborations: Yerevan Physics Institute (YerPhI)

Publications in 2000-2008: 1

Grants:

Contact: Ar.G. Yeghikyan