Welcome to my Website!

 
 

Research Interests 

 

  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. Observational Astronomy

My main area of study is the multiwavelength observations and interpretation of the processes going on around supermassive black holes (BH): the nature of the power source in active galactic nuclei (AGNs); the cosmological evolution of supermassive BH and their host galaxies, and relationships with environment in small and large scales. One of my long-term interests has been variability of the radiation from AGNs to probe what is going on around the supermassive BH (structure and kinematics of the broad/narrow-line emission regions) and power generation.


Education


  1. 1995 Ph.D. (Physics & Mathematics, Specialisation - Astronomy & Radioastronomy) Special Astrophysical Observatory, Russian Academy of Sciences, Russia.

  2. 1986 M.Sc. (Physics, Specialisation - Astrophysics) Yerevan State University, Department of Astrophysics, Armenia.1984 

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


Recent publications


Published Refereed papers


Chavez, M.D.; Shcherbakov, S. A.; Arellanes, A.O.; Chavushyan, V., 2013, IJAA, 3, 421. High-Resolution Broadband Millimeter-Wave Astrophysical Spectrometer with Triple Product Acousto-Optical Processor.


Shcherbakov, S. A.; Arellanes, A.O.; Chavushyan, V., 2013, IJAA, 3, 376. Optical Spectrometer with Acousto-Optical Dynamic Grating for Guillermo Haro Astrophysical Observatory.


Masetti, N.; Sbarufatti, B.; Parisi, P.; Jiménez-Bailón, E.; Chavushyan, V.; Vogt, F. P. A.; Sguera, V.; Stephen, J. B.; Palazzi, E.; Bassani, L.; and 8 coauthors, 2013, A&A, 559, 58. BL Lacertae identifications in a ROSAT-selected sample of Fermi unidentified objects.


Shapovalova, A. I.; Popovic, L. C.; Burenkov, A. N.; Chavushyan, V. H.; Ilic, D.; Kollatschny, W.; Kovacevic, A.; Bochkarev, N. G.; Valdes, J. R.; Torrealba, J.; and 7 coauthors, 2013, A&A, 559, 10. Spectral optical monitoring of a double-peaked emission line AGN Arp 102B: I. Variability of spectral lines and continuum.


Masetti, N.; Parisi, P.; Palazzi, E.; Jimenez-Bailon, E.; Chavushyan, V.; McBride, V.; Rojas, A. F.; Steward, L.; Bassani, L.; Bazzano, A.; and 11 coauthors, 2013, A&A, 556, 120. Unveiling the nature of INTEGRAL objects through optical spectroscopy. X. A new multi-year, multi-observatory campaign.


Koulouridis, E.; Plionis, M.; Chavushyan, V.; Dultzin, D.; Krongold, Y.; Georgantopoulos, I.; León-Tavares, J., 2013, A&A, 552, 135. Activity of the Seyfert galaxy neighbours.


Benítez, Erika; Méndez-Abreu, Jairo; Fuentes-Carrera, Isaura; Cruz-González, Irene; Martínez, Benoni; López-Martin, Luis; Jiménez-Bailón, Elena; León-Tavares, Jonathan; Chavushyan, Vahram H., 2013, ApJ, 763, 36. Characterization of a Sample of Intermediate-type AGNs. I. Spectroscopic Properties and Serendipitous Discovery of New Dual AGNs.


Benítez, E., Méndez-Abreu, J., Fuentes-Carrera, I., Cruz-González, I.,  Martínez, B., López-Martin, L., Jiménez-Bailón, E., Chavushyan, V.,  León-Tavares, J., 2013, ApJ, 763, 136. Characterization of a sample of intermediate-type AGN.  II. Host Bulge Properties and Black Hole Mass Estimates.


León-Tavares, J.; Chavushyan, V.; Patiño-Álvarez, V.; Valtaoja, E.; Arshakian, T. G.; Popović, L. Č.; Tornikoski, M.; Lobanov, A.; Carramiñana, A.; Carrasco, L.; Lähteenmäki, A., 2013, ApL, 763, 36. Flare-like Variability of the Mg II λ2800 Emission Line in the Γ-Ray Blazar 3C 454.3.


The Astronomer’s Telegram


Carrasco, L.; Recillas, E.; Porras, A.; Chavushyan, V.; Carraminana, A., 2013, ATel, # 5550. NIR brightening of BL LAC.


Conference Proceedings


Ilić, Dragana; Popović, Luka Č.; Shapovalova, Alla I.; Burenkov, Alexander N.; Chavushyan, Vahram H.; Kovačević, Andjelka; Kollatschny, Wolfram., 2013, IAUS, 290, 205. The broad line emission from the AGN 3C 390.3: complex broad-line region and perturbation in accretion disk.


Parisi, P.; Masetti, N.; Rojas, A. F.; McBride, V.; Steward, L.; Bassani, L.; Bazzano, A.; Bird, A. J.; Charles, P. A.; Chavushyan, V.; and 10 coauthors, 2013, arXiv:1302.6117. Identification of newly-discovered sources belonging to the 4th IBIS catalog and to the 54 months Palermo Swift/BAT catalog. Proceedings of "An INTEGRAL view of the high-energy sky (the first 10 years)" the 9th INTEGRAL Workshop.


Patiño-Álvarez, V.; Carramiñana, A.; Carrasco, L.; Chavushyan, V., 2013, arXiv:1303.1898. A Multiwavelength Cross-Correlation Variability Study of Fermi-LAT Blazars. In 4th. Fermi Symposium, eConf Proceedings C121028.


Patiño-Álvarez, V.; Chavushyan, V.; León-Tavares, J.; Valdés, J. R.; Carramiñana, A.; Carrasco, L.; Torrealba, J., 2013, arXiv:1303.1893.  Optical Spectrophotometric Monitoring of Fermi/LAT Bright Sources. In 4th. Fermi Symposium, eConf Proceedings C121028.


Benítez, E.; Krongold, Y.; González, J. J.; Cruz-González, I.; Dultzin, D.; Plionis, M.; Chavushyan, V. H., 2013, RMxAC, 42, 62. LAE's at z~4.5: The environment of the radio quiet QSO SDSS J080849.42+521515.3.


Zavala, J.; López-Valdivia, R.; Gudiño, M.; Santamaría, I.; Bertone, E.; Chavez, M.; Chavushyan, V.; Ramos-Larios, G.; Vega, O., 2013, ASPC, 472, 63. On the Nature of NVSS J151550-370913, the Galaxy Close to the Planet Host Star SAO206462.


Shcherbakov, Alexandre S.; Arellanes Bernabe, Adan Omar; Chavushyan, Vahram, 2013, SPIE, 8855, 7. Designing the acousto-optical cell for optical spectrometer incorporated into the Guillermo Haro Astrophysical Observatory.


Shcherbakov, Alexandre S.; Arellanes Bernabe, Adan Omar; Chavushyan, Vahram, 2013, SPIE, 8842, 8. Designing an acousto-optical spectrometer for Guillermo Haro Astrophysical Observatory.


profile




Name: Vahram Chavushyan

Gender: Male

Birthday: 1964  July 21

Status: Married

Hometown: San Francisco Acatepec, Puebla



occupation




Industry: Science

Occupation: Research professor

School: INAOE

Location: Tonantzintla, Puebla, Mexico


MEXICAN FAVORITS





2.1m OAGH


2.1m OAN-SPM


1.5m OAN-SPM


0.84m OAN-SPM





Page Last Updated:

March 15, 2013






My Sites


  1. Active Galactic Nuclei


  1. GHAO - publications

 

Instituto Nacional de Astrofísica Óptica y Electrónica

Departamento de Astrofísica


                                                                                                                            

Apartado postal 51 y 216, 72000 Puebla

Pue, MEXICO

Phone: +52 222 2663100 (Ext. 2309)

Fax: +52 222 2472231

e-mail: vahram@inaoep.mx