Main Field of Expertise 

 

1. •Wide-Field surveys (AGNs, Galaxies, CV, White dwarfs and hot subdworfs)
   

2. •Active Galactic Nuclei and Quasars  (Central Engine and Environment)
   

3. •Compact Groups of Galaxies
   

4. •Gravitational lensing 
   

Education

1995 Ph.D.  (Astronomy) Special Astrophysical Observatory, Russian Academy of Sciences, Russia. Thesis: "Quasistellar objects of the Second Byurakan sky Survey."  Advisor: Dr. J.A. Stepanian

1986 M.Sc. (Astrophysics) Yerevan State University, Department of Astrophysics, Armenia. Thesis: "Spectral and photometrical investigation of the dwarf irregular galaxies Markarian 773 and Markarian 1006" Advisors: Prof. E.Y. Khachikian and Dr. A.R. Petrossian

1984 B.Sc. (Physics) Yerevan State University, Faculty of Physics, Armenia

Recent publications

Report: New astronomical observations of transient sources

Carrasco, L., Carraminana, A., Recillas, E., Porras, A.,  Chavushyan, V. 2009, ATel #2028. Outburst of PKS J0808-0751 (3EG J0812-0646).

Carramiñana, A.; Carrasco, L.; Recillas, E.; Chavushyan, V. 2008, ATel #1874. Infrared flaring of the potential gamma-ray source QSO B0133+47.

Parisi, P.; Masetti, N.; Jimenez, E.; Chavushyan, V.; Bassani, L.; Bazzano, A.; Bird, A.J., 2008, ATel #1710. Optical identification of IGR J18308-1232 as a Cataclysmic Variable.

Refereed papers

Arshakian, T. G.; Leon-Tavares, J.; Lobanov, A. P.; Chavushyan, V. H.; Shapovalova, A. I.; Burenkov, A. N.; Zensus, J. A., 2009, MNRAS (accepted). Observational evidence for the link between the variable optical continuum and the subparsec-scale jet of the radio galaxy 3C 390.3.

Shapovalova, A. I.; Popovic, L. C.; Bochkarev, N. G.; Burenkov, A. N.; Chavushyan, V. H.; Collin, S.; Doroshenko, V. T.; Ilic, D.; Kovacevic, A.,  2009, New Astronomy Reviews (accepted). Long term variability of the Broad Emission Line profiles in AGN.

Ribeiro, V. A. R. M.; Bode, M. F.; Darnley, M. J.; Harman, D. J.; Newsam, A. M.; O'Brien, T. J.; Bohigas, J.; Echevarría, J. M.; Bond, H. E.; Chavushyan, V. H.; and 9 coauthors, 2009, Ap.J., 703, 1955. The Expanding Nebular Remnant of the Recurrent Nova RS Ophiuchi (2006). II. Modeling of Combined Hubble Space Telescope Imaging and Ground-based Spectroscopy.

Masetti, N.; Parisi, P.; Palazzi, E.; Jimenez-Bailon, E.; Morelli, L.; Chavushyan, V.; Mason, E.; McBride, V. A.; Bassani, L.; Bazzano, A.; and 10 coauthors, 2009, A&A, 495, 121. Unveiling the nature of INTEGRAL objects through optical spectroscopy. VII. Identification of 20 Galactic and extragalactic hard X-ray sources.

Conference Proceedings

Koulouridis, E.; Chavushyan, V.; Plionis, M.; Dultzin, D.; Krongold, Y.; Goudis, C.; Chatzichristou, E., 2008, in The Central Kiloparsec: Active Galactic Nuclei and Their Hosts. The Environment of Sy1, Sy2 & Bright IRAS Galaxies.

Churyumov, K. I.; Chubko, L. S.; Lukyanyk, I. V.; Kleshchonok, V. V.; Berezhnoy, A. A.; Chavushian, V. H.; Sandoval, L.; Palma, A., 2008, LPICo, 1405, 8225. In Asteroids, Comets, Meteors. Study of Spectra of Comet 17P/Holmes Obtained with 2.12-m Telescope in Mexico on November 2 and 3, 2007.

León-Tavares, J.; Chavushyan, V. H.; Arshakian, T. G., 2008, RMxAC, 32, 49. In The Nuclear Region, Host Galaxy and Environment of Active Galaxies. Double-Peaked Emitters: a transition phase in the evolution of AGN?

Torrealba, J.; Chavushyan, V. H.; Arshakian, T. G.; Cruz-González, I.; Ros, E.; Zensus, J. A.; Bertone, E.; Rosa-González, D., 2008, RMxAC, 32, 48. In The Nuclear Region, Host Galaxy and Environment of Active Galaxies. Testing the connections in the BH-disk-jet system.

Arshakian, T. G.; Lobanov, A. P.; Chavushyan, V. H.; Shapovalova, A. I.; Zensus, J. A., 2008, in Relativistic Astrophysics and Cosmology - Einstein's  Legacy. ESO Astrophysics Symposia, Volume . ISBN 978-3-540-74712-3, p. 189. The Source of Variable Optical Emission is Localized in the Jet of the Radio Galaxy 3C 390.3.

Kovacevic, A.; Shapovalova, A. I.; Popovic, L. C.; Burenkov, A. N.; Chavushyan, V., 2008, POBeo, 84, 471. The BLR structure of NGC4151 - possible outflow model.

Benítez, E.; Franco-Balderas, A.; Chavushyan, V.; Torrealba, J., 2008. in Relativistic Astrophysics and Cosmology - Einstein's  Legacy. ESO Astrophysics Symposia, Volume . ISBN 978-3-540-74712-3, p. 111. The Supermassive Black-Hole Mass Estimation in the Sy1.9 Galaxy SBS 0748+499.

Churyumov, K; Berezhnoy, A.; Chubko, L.; Lukyanyk, I.; Chavushyan, V.; Palma, A.; Sandoval, L.; Volvach, A., 2008, COSP, 37, 554. In 37th COSPAR Scientific Assembly. Optical and radio spectra of the comet 17P/Holmes during its outburst.