CURRENT
PROJECTS AT THE BYURAKAN OBSERVATORY (2000-2008)
By Publications
The
largest 33 projects are listed having at least 4 publications during 2000-2008
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
Grants:
Contact: T.G.
Arshakian
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
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: 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
Grants: PICS and DAAD travel grants
Contact: K.S. Gigoyan
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
Grants: PICS
travel grants
Contact: A.M. Mickaelian
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:
Grants:
Contact: A.M. Mickaelian
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
Grants: PICS
travel grants
Contact: A.G. Nikoghossian
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
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
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
Grants: PICS and DAAD travel grants
Contact: K.S. Gigoyan
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
Grants: STScI
fellowship, PICS travel grants
Contact: A.R. Petrosian
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
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
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
Grants:
Contact: Ar.G. Yeghikyan
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
Grants: PICS travel grants
Contact: N.D. Melikian
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
Grants: PICS, ANR, and DFG travel grants
Contact: A.M. Mickaelian;
L.K.Erastova
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
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: 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
Grants:
Contact: R.A. Kandalyan
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
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
Grants: ANSEF-2004:
S.A. Hakopian (PI), 3D-study of SBS galaxies
Contact: S.A. Hakopian
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
Grants:
Contact: L.K.Erastova
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
Grants:
Contact: N.D. Melikian
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
Grants: STScI
fellowship, PICS travel grants
Contact: A.R. Petrosian
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
Grants: PICS
travel grants
Contact: A.G. Nikoghossian
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
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:
Grants:
Contact: E.S. Parsamian, A.A. Akopian
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
Grants:
Contact: A.L. Gyulbudaghian
Project: Spectroscopic
Observations of Subfuors
Topics: Spectroscopic observations of subfuors (Exors) V1118
and V1143 Ori
Team: E.S.
Parsamian
Collaborations: Mexico
Grants:
Contact: E.S. Parsamian
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:
Grants:
Contact: V.H. Malumian
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
Grants:
Contact: A.L. Gyulbudaghian
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
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
Grants: PICS
travel grants
Contact: R.R. Andreasyan
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
Grants: STScI
fellowship, PICS travel grants
Contact: A.R. Petrosian
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)
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
Grants:
Contact: A.T. Kalloghlian
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
Grants: DFG travel
grants
Contact: A.M. Mickaelian