IAUC 184

IAU Colloquium #184: AGN Surveys

Devoted to B.E. Markarian’s memory

June 18-22, 2001, Byurakan, Armenia

AGN surveys are the source for the most interesting objects in the Universe: QSOs, Seyfert galaxies, blazars, radiogalaxies, LINERs, etc. Several dozen well-known surveys, principally at optical/UV and radio wavelengths, have been conducted over the years and revealed thousands of AGN, while just recently, new surveys in the farIR/submm and at X-ray wavelengths have discovered a substantial new population of obscured AGN that appear to reside both in normal galaxies as well as in faint, heavily reddened hosts. The matching of these surveys leads to the discovery of large amount of new AGNs. One of the most important problems is the study of evolutionary and physical connections between different types of objects, which will be possible by accumulating data by multiwavelength observations and their overall analysis. We appear to be entering into a golden age for AGN research. Multiwavelength datasets are raising challenging new questions about the origin and evolution of AGN and their relationship to galaxy formation.

The IAU Col. 184 on AGN surveys was devoted to the memory of B.E. Markarian, who was the first to conduct a systematic large-area survey for active galaxies and discovered 1500 UV-excess galaxies, later named Markarian galaxies. Byurakan Observatory is famous in surveys and discovery of new objects, especially extragalactic ones. Beside the Markarian or First Byurakan Survey (FBS), Shakhbazian compact groups of compact galaxies, Arakelian galaxies with bright nuclear regions (including many AGN), Kazarian galaxies, the Second Byurakan Survey (SBS) quasars and active galaxies are well known.

Scientific Organizing Committee (SOC): Francesco Bertola (Italy), Brian J. Boyle (Australia), Richard F. Green (USA), Gunther Hasinger (Germany), Edward Ye. Khachikian (Co-Chair, Armenia), Areg M. Mickaelian (Armenia), Dieter Reimers (Germany), Brigitte Rocca-Volmerange (France), David B. Sanders (Co-Chair, USA), Govind Swarup (India), Yervant Terzian (USA), Philippe Vйron (France), Daniel W. Weedman (USA).

Local Organizing Committee (LOC): Areg Mickaelian (Chair), Susanna Hakopian (Secretary).

Scientific Topics:

Spectral and colorimetric surveys for AGN
Surveys for UV-excess galaxies
AGN from IR/submm surveys: IRAS, ISO, SCUBA, SIRTF
AGN from Radio surveys: NVSS, FIRST, and others
AGN from X-ray surveys: ROSAT, ASCA, BeppoSAX, Chandra, XMM
AGN statistics and cross-correlation of multiwavelength surveys
Physics and Cosmological Evolution of AGN
Study of unique AGN
Digital surveys and their advantage
Future giant projects
The Phenomena of Activity

92 scientists from 16 countries (USA, Canada, Mexico, Japan, China, UK, Germany, France, Italy, Netherlands, Spain, Portugal, Poland, Russia, Kazakhstan, and Armenia) participated in the symposium, including 67 foreign (11 from former USSR), and 25 from Armenia. Among them there were distinguished scientists, such as Richard Green, David Sanders, Vahe Petrosian, Wolfgang Voges, Luis Ho, Sylvain Veilleux, Robert Antonucci, Joseph Mazzarella, Lutz Wisotzki, Roc Cutri, John Hutchings, Brigitte Rocca-Volmerange, and others.

Altogether 87 contributions were presented, including 27 invited reviews on the invitation of the SOC of the Symposium (by R. Antonucci, H. Aussel, A. Comastri, R. Cutri, S. Dodonov, W. Duschl, R. Green, C. Gronwall, L. Gurvits, M. Haas, L. Ho, J. Hutchings, K. Isaak, Z. Ivezic, K. Iwasawa, E. Khachikian, J. Mazzarella, A. Mickaelian, V. Petrosian, D. Reimers, B. Rocca-Volmerange, J. Stepanian, H. Smith, Y. Taniguchi, S. Veilleux, W. Voges, L. Wisotzki), 15 contributed oral talks, and 45 posters.

The IAU Colloquium 184 in Byurakan showed that building "complete" samples at various wavelengths was certainly necessary. The survey specialists exchanged the acquired experience, compared different surveys, discussed methodological problems, and elaborated a strategy for further investigations. It was helpful for planning the most efficient way to make significant advances in the field: plan future surveys best fitted to improve our knowledge about AGNs, coordinate observations with large ground-based and space telescopes, construct as homogeneous as possible sample of AGNs over the whole sky, obtain an overall patterns of the distant Universe and understand AGN phenomena and the related evolution of galaxies.

Proceedings: AGN Surveys, Eds. R.F. Green, E.Ye. Khachikian, & D.B. Sanders, Astronomical Society of the Pacific, Conference Series, Vol. 284, ASP, San Francisco, 2002, 452 p. (in English).

Full List of Participants

Akiyama, Masayuki, Subaru Telescope, Nat.Astron.Obs.Japan (NAOJ), Japan

Almaini, Omar, University of Edinnburgh, UK

Amirkhanyan, Arthur S., Byurakan Astrophysical Observatory (BAO), Armenia

Anton, Sonia, Observatorio da Ajuda da Universidade de Lisboa, Portugal

Antonucci, Robert, University of California, Santa Barbara (UCSB), USA

Arshakian, Tigran G., Byurakan Astrophysical Observatory (BAO), Armenia

Asatrian, Norair S., Byurakan Astrophysical Observatory (BAO), Armenia

Augusto, Pedro Manuel, Universidade da Madeira, Dept. Matemtica, Portugal

Aussel, Hervй, Institute for Astronomy (IfA), Hawaii, USA

Balayan, Smbat K., Byurakan Astrophysical Observatory (BAO), Armenia

BOCHKAREV, Nikolai G., Sternberg Astronomical Institute (SAI), Moscow, Russia

BOSCHETTI, Carla, Astronomical Observatory, University of Padova, Italy

Brusa, Marcella, Osservatorio Astronomico di Bologna, Italy

Caccianiga, Alessandro, Observatorio Astronomico de Lisboa (OAL), Portugal

Chavushian, Vahram H., Inst. Natl. Astron., Optica y Electronica (INAOE), Puebla, Mexico

Comastri, Andrea, Osservatorio Astronomico di Bologna, Italy

Cutri, Roc, Infrared Processing & Analysis Center (IPAC), CalTech, USA

De Breuck, Carlos, Institut d'Astrophysique de Paris (IAP), France

Dodonov, Serguei N., Special Astrophysical Observatory (SAO), Russia

Duschl, Wolfgang, Institut fur Theoretische Astrophysik, Heidelberg, Germany

Eghikian, Anahit G., Byurakan Astrophysical Observatory (BAO), Armenia

Erastova, Lidija K., Byurakan Astrophysical Observatory (BAO), Armenia

Green, Richard F., National Optical Astronomy Observatory (NOAO), USA

Gronwall, Caryl, Johns Hopkins University, Dept. Physics & Astronomy, USA

Gurvits, Leonid, Joint Institute for VLBI in Europe (JIVE), Netherlands

GYULBUDAGHIAN, Armen L., Byurakan Astrophysical Observatory (BAO), Armenia

Gyulzadian, Marietta V., Byurakan Astrophysical Observatory (BAO), Armenia

Haas, Martin, Max-Planck-Institut fur Astronomie, Heidelberg, Germany

Hakopian, Susanna A., Byurakan Astrophysical Observatory (BAO), Armenia

Hawkins, Michael, Royal Observatory Edinburgh (ROE), UK

Ho, Luis C., Carnegie Observatories, Pasadena, USA

HOVHANNISSIAN, Martik A., Byurakan Astrophysical Observatory (BAO), Armenia

Hutchings, John, Dominion Astrophysical Observatory (DAO), Canada

Isaak, Katherine G., Cavendish Laboratory, University of Cambridge, UK

Iskudarian, Sofik G., Byurakan Astrophysical Observatory (BAO), Armenia

Israelian, Garik L., Instituto de Astrofisica de Canarias (IAC), Tenerife, Spain

IVANOVA, Nina L., Byurakan Astrophysical Observatory (BAO), Armenia

IveziC, Zeljko, Princeton University, Dept. of Astrophys. Sciences, USA

Iwasawa, Kazushi, University of Cambridge, Institute of Astronomy, UK

Jamrozy, Marek, Astronomical Observatory, Jagiellonian University, Poland

Kakazu, Yuko, Tohoku Univ., Graduate School of Sci., Astron. Inst., Sendai, Japan

KALLOGHLIAN, Arsen T., Byurakan Astrophysical Observatory (BAO), Armenia

Kameno, Seiji, National Astronomical Observatory of Japan (NAOJ), Tokyo, Japan

Karachentsev, Igor D., Special Astrophysical Observatory (SAO), Russia

Khachikian, Edward Ye., Byurakan Astrophysical Observatory (BAO), Armenia

Kovalev, Yuri A., Astro Space Center of P.N.Lebedev Physical Inst., Moscow, Russia

LARIONOV, Valery M., Sankt Petersburg State Univ. (SPbSU), Astron. Inst., Russia

MAHTESSIAN, Abraham P., Byurakan Astrophysical Observatory (BAO), Armenia

MALUMIAN, Vigen H., Byurakan Astrophysical Observatory (BAO), Armenia

Manners, James, Institute for Astronomy, Edinburgh University, UK

Marcha, Maria Joao M., Observatorio Astronomico de Lisboa (OAL), Portugal

Matute, Israel, Dip. Fisica "E.Amaldi", Univ. Roma 3, Italy

Mazzarella, Joseph, Infrared Processing & Analysis Center (IPAC), CalTech, USA

Meusinger, Helmut, Thuringer Landessternwarte, Tautenburg, Germany

Mickaelian, Areg M., Byurakan Astrophysical Observatory (BAO), Armenia

Mitchell, Kenneth James, National Aeronautics and Space Administration (NASA), USA

Moiseev, Aleksey V., Special Astrophysical Observatory (SAO), Russia

Movsessian, Tigran H., Byurakan Astrophysical Observatory (BAO), Armenia

MOVSISSIAN, Vardan H., Byurakan Astrophysical Observatory (BAO), Armenia

Mujica, Raul, Inst. Natl. Astron., Optica y Electronica (INAOE), Puebla, Mexico

Nagar, Neil, Osservatorio Astrofisico di Arcetri, Firenze, Italy

NIKOGHOSSIAN, Elena H., Byurakan Astrophysical Observatory (BAO), Armenia

NOVIKOVA, Olga, Sternberg Astronomical Institute (SAI), Moscow, Russia

Ohanian, Gabriel A., Byurakan Astrophysical Observatory (BAO), Armenia

Outram, Phil, Dept. of Physics, University of Durham, UK

Oyama, Tomoaki, Department of Astronomy, University of Tokyo, Japan

PANAJyAN, Vazgen G., Byurakan Astrophysical Observatory (BAO), Armenia

Petrosian, Vahй, Stanford University, Stanford, USA

RIFATTO, Agatino, Astronomical Observatory of Capodimonte, Naples, Italy

Rocca-Volmerange, Brigitte, Institut d’Astrophysique de Paris (IAP), France

Sadoyan, Avetis A., Yerevan State University (YSU), Dept. of physics, Armenia

Sanders, David B., Institute for Astronomy (IfA), University of Hawaii, USA

Sarajedini, Vicki, University of Florida, Department of Astronomy, USA

Schmitt, Henrique Roberto, National Radio Astronomy Observatory (NRAO), USA

Shapovalova, Alla I., Special Astrophysical Observatory (SAO), Russia

Shen, Zhi-Qiang, Institute of Space and Astronautical Science (ISAS), Japan

Smith, Harding Eugene, Center Astrophys. & Dept. Phys., Univ. California, San Diego, USA

Stepanian, Jivan A., Univ. Nacional Autonoma De Mexico (UNAM), Inst. Astron., Mexico

Taniguchi, Yoshiaki, Tohoku Univ., Graduate School of Sci., Astron. Inst., Sendai, Japan

TOROSSIAN, Ofelia Kh., Byurakan Astrophysical Observatory (BAO), Armenia

Trevese, Dario, Universita` di Roma "La Sapienza", Dipartimento di Fisica, Italy

Ueda, Yoshihiro, Institute of Space and Astronautical Science (ISAS), Japan

Vagnetti, Fausto, University of Rome Tor Vergata, Dipartimento di Fisica, Italy

Valiullin, Rashit R., Fesenkov Asrophysical Institute, Almaty, Kazakhstan

Veilleux, Sylvain, University of Maryland, Department of Astronomy, USA

VERKHODANOV, Oleg V., Special Astrophysical Observatory (SAO), Russia

VERKHODANOVA, Natalia V., Special Astrophysical Observatory (SAO), Russia

Voges, Wolfgang, Max-Planck-Institut fur Extraterrestrische Physik (MPE), Germany

Wisotzki, Lutz, Institut fuer Physik, Universitaet Potsdam, Germany

Xue, Suijian, Beijing Astronomical Observatory, China

YEGHIAZARIAN, Anahit A., Byurakan Astrophysical Observatory (BAO), Armenia

Zou, Zhenlong, Beijing Astronomical Observatory, China