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 Veron (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