ArVO
Group Main Achievements
Discovery and Identification of New Objects
·
1103 FBS Blue Stellar Objects (BSOs),
including more than 700 new ones (A.M. Mickaelian)
·
1047 FBS late-type stars, including more
than 500 new ones and 95 high galactic latitude
carbon stars (K.S. Gigoyan)
·
3607 SBS galaxies and stellar objects (L.K.
Erastova et al.)
·
42 new bright AGN (QSOs and Seyferts)
among the FBS BSOs (A.M. Mickaelian et al.)
·
Hundreds of new white dwarfs and hot subdwarfs
among the FBS BSOs (A.M. Mickaelian, P.K. Sinamyan)
·
New cataclysmic variables among the FBS
BSOs (A.M. Mickaelian et al.)
·
Discovery of a new rare bright cataclysmic variable RXS
J1643.7+3402: SW Sex sub-class Nova-like CV (A.M. Mickaelian et al.)
·
Discovery of 2 Novae among the FBS
BSOs (with amplitude of ~8 mag.) (A.M. Mickaelian)
·
Spectroscopic
studies of a large number of FBS late-type stars and discovery of 2 new carbon
dwarfs out of 45 known ones (K.S. Gigoyan)
·
Discovery of an
extreme object FBS 2213+421 (post Asymptotic Giant Branch (post-AGB) and pre-planetary nebula) (K.S. Gigoyan)
·
Discovery of a
number of Mira type and semi-regular variables among the FBS late-type stars
(K.S. Gigoyan)
·
Discovery of a very high PM star
(5.13 as/yr) among FBS late-type stars (FBS 0250+167) (K.S. Gigoyan, A.M. Mickaelian)
·
1577 IRAS
unidentified IR sources; 1279 galaxies (BIG
objects) (A.M. Mickaelian, L.A. Sargsyan, et al.) and 287 (BIS objects) (A.M. Mickaelian, K.S. Gigoyan)
·
New bright AGN (Seyferts and
LINERs) and ULIRGs among BIG objects
(A.M. Mickaelian, L.A. Sargsyan, et al.)
·
Dozens of new pairs and multiple galaxies among
IRAS sources (A.M. Mickaelian, L.A. Sargsyan, et al.)
·
Discovery of
IRAS F18187+6304: a puzzling PMS
emission line star with circumstellar envelope among BIS objects (A.M. Mickaelian, K.S. Gigoyan et al.)
·
3212 ROSAT FSC X-ray sources (2002, A.M.
Mickaelian et al.)
·
New bright AGN (QSOs and
Seyferts) among X-ray sources (A.M. Mickaelian et al.)
·
2791 ROSAT FSC X-ray sources (BHRC objects,
2004, A.M. Mickaelian, L.R. Hovhannisyan, et al.)
·
Pairs and multiple (interacting) galaxies among ROSAT sources (A.M. Mickaelian, et al.)
·
28 highest IR/opt flux ratio extragalactic
sources selected from IRAS FSC and observed with SST (A.M. Mickaelian, L.A.
Sargsyan et al.)
·
237 Spitzer
Space Telescope (SST) stellar sources in
Boцtes and FLS (A.M. Mickaelian, L.R. Hovhannisyan et al.)
·
Discovery of 21
hot debris disk stars among Spitzer sources (A.M. Mickaelian, L.R. Hovhannisyan et al.)
·
330 IRAS / 2MASS / FIRST / SDSS selected galaxies,
a new sample for comparative study of properties of IR sources (A.M.
Mickaelian, L.A. Sargsyan et al.)
Astrophysical and Statistical Results
·
Re-estimation of the completeness of BQS
(53%) and estimation of the surface density of bright QSOs/AGN (0.012
deg-2) (A.M. Mickaelian
et al.)
·
Complete AGN
classification for HyperLEDA database (A.M. Mickaelian)
·
Areas on J-K vs. R-K color-color diagrams have been defined where proper motion objects are well
distinguished (K.S. Gigoyan)
·
Optical identification of ROSAT sources
and estimation of the abundance of various types of objects among X-ray
sources (A.M. Mickaelian, L.R. Hovhannisyan et al.)
·
Discovery of new types of X-ray sources: interacting
galaxies (A.M. Mickaelian)
·
Estimation of the maximum luminosity of
a single spiral galaxy (1012 L) (A.M. Mickaelian et al.)
·
Discovery of the highest IR/opt flux ratio
(40-1000) extragalactic objects (A.M. Mickaelian, L.A. Sargsyan et al.)
·
Determination of
star-formation rate of galaxies by UV, IR, and radio (L.A. Sargsyan et
al.)
·
Validity of IR
PAH 7.7 micron flux calibration of star-formation rate has been
confirmed (L.A. Sargsyan
et al.)
·
Empirical measure of extinction in
galaxies in the UV (L.A. Sargsyan et al.)
·
It was confirmed that IR selected starbursts are not significantly more dusty than the UV selected ones (L.A. Sargsyan et al.)
·
Definition of HINERs (High
Ionization Nuclear Emission-Line Regions) (A.M. Mickaelian)
·
Establishment of accurate magnitudes for AGN and the first statistical study of AGN catalog (A.M. Mickaelian)
·
Discovery of the spectral variability
of Akn 564; fine analysis of emission lines (A.M. Mickaelian et al.)
·
Discovery of the spectral variability
of Kaz 102; fine analysis of emission lines (A.M. Mickaelian et al.)
·
Study of interrelationship of AGN /
interaction / starburst phenomena for IRAS galaxies (A.M. Mickaelian)
Technical and Methodological Developments
·
Working out methods for accurate
measurements of coordinates from POSS
·
Working out methods for optical
identifications of IRAS point sources by means of low-dispersion spectra
·
Working out new methods for optical
identifications of ROSAT point sources by means of HQS and other databases
·
Modification of automated reduction
package in ESO-MIDAS for BAO 2.6m telescope
·
Introducing ESO-MIDAS and SPECTRAI in
Byurakan
·
Working out methods for digitization of
astronomical plates
·
Working out methods for astrometric
solution of astronomical plates
·
Development of methods for
cross-correlation of astronomical catalogs
·
Working out methods for classification of
low-dispersion spectra
·
Automatic reduction and classification of
the digitized 2.6m telescope spectra
·
Classification of active galaxies by their
Spectral Energy Distribution (SED) using SDSS and 2MASS data
·
Installation of DFBS web portal and ArVO
server on ArmCluster; VO in GRID
·
Introducing SST reduction software SMART
in Byurakan
·
Working out methods for calculation of
most possible accurate proper motions and variability
Initiated Projects and Novelties
·
Polarimetric observations of FBS BSOs with BAO 2.6m
telescope
·
First research and introducing new field of Infrared
Astronomy in Byurakan
·
Project of optical identifications of IRAS PSC sources
·
First research and introducing new field of X-ray
Astronomy in Byurakan
·
Project of optical identifications of ROSAT FSC
sources
·
First multiwavelength studies of galactic and
extragalactic objects
·
Multiwavelength astronomy at BAO: multiwavelength
surveys for new bright AGN
·
Search for extremely red objects in 2MASS
·
Digitized First Byurakan Survey (DFBS); first large
digitization project
·
Digitization of photographic slit spectra obtained
with BAO 2.6m telescope
·
Armenian Virtual Observatory (ArVO) and its acceptance
in IVOA
·
AGN classification in HyperLEDA
database
·
Comparative analysis of
large databases (for derivation of high IR/opt flux ratio objects, etc.)
ArVO group main products
·
Catalog of FBS blue stellar objects (Mickaelian 2008, AJ
136, 946)
·
Catalog of FBS late-type stars (Gigoyan &
Mickaelian 2012, MNRAS 419, 3346)
·
Catalog of Byurakan-IRAS Galaxies (Mickaelian 2012)
·
Catalog of Byurakan-IRAS Stars (Mickaelian &
Gigoyan 2006, A&A 455, 765)
·
Catalog of Byurakan/Hamburg/ROSAT sources (Mickaelian et al.
2006, A&A 449, 425)
·
DFBS web site at http://www.aras.am/Dfbs/dfbs.html
·
DFBS web portal at La Sapienza
Universita di Roma at http://byurakan.phys.uniroma1.it/
·
ArVO web site at http://www.aras.am/ArVO/arvo.htm
·
DFBS book (Eds. Massaro, Mickaelian, Nesci, Weedman, Aracne Editrice, Rome, 2008)