IDENTIFICATION OF THE EARLY FERMI/LAT GAMMA-RAY BRIGHT OBJECTS WITH EXTRAGALACTIC VLBI SOURCES

被引：57

作者：

Kovalev, Y. Y. ^{[1
,2
]}

机构：

[1] Max Planck Inst Radioastron, D-53121 Bonn, Germany

[2] PN Lebedev Phys Inst, Ctr Astro Space, Moscow 117997, Russia

来源：

ASTROPHYSICAL JOURNAL LETTERS | 2009年 / 707卷 / 01期

基金：

俄罗斯基础研究基金会; 美国国家航空航天局;

关键词：

catalogs; galaxies: active; gamma rays: observations; radio continuum: galaxies; ACTIVE GALACTIC NUCLEI; ALL-SKY SURVEY; CELESTIAL REFERENCE FRAME; LARGE-AREA TELESCOPE; CALIBRATOR SURVEY; 5; GHZ; RADIO-SOURCES; SOURCE LIST; BLAZAR; POLARIMETRY;

D O I：

10.1088/0004-637X/707/1/L56

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A list of 205 gamma-ray strong objects was reported recently as a result of a three-month integration with the Large Area Telescope on board the Fermi Gamma-Ray Space Telescope. We attempted identification of these objects, cross-correlating the gamma-ray positions with very long baseline interferometry (VLBI) positions of a large all-sky sample of extragalactic radio sources selected on the basis of their parsec-scale flux density. The original associations reported by the Fermi team are confirmed, and six new identifications are suggested. A Monte Carlo analysis shows that the fraction of chance associations in our analysis is less than 5%, and confirms that the vast majority of gamma-ray bright extragalactic sources are radio-loud blazars with strong parsec-scale jets. A correlation between the parsec-scale radio and gamma-ray flux is supported by our analysis of a complete VLBI flux-density-limited sample of extragalactic jets. The effectiveness of using a VLBI catalog to find associations between gamma-ray detections and compact extragalactic radio sources, especially near the Galactic plane, is demonstrated. It is suggested that VLBI catalogs should be used for future identification of Fermi/LAT objects.

引用

页码：L56 / L59

页数：4

共 34 条

[1] FERMI/LARGE AREA TELESCOPE BRIGHT GAMMA-RAY SOURCE LIST [J].

Abdo, A. A. ;

Ackermann, M. ;

Ajello, M. ;

Atwood, W. B. ;

Axelsson, M. ;

Baldini, L. ;

Ballet, J. ;

Band, D. L. ;

Barbiellini, G. ;

Bastieri, D. ;

Battelino, M. ;

Baughman, B. M. ;

Bechtol, K. ;

Bellazzini, R. ;

Berenji, B. ;

Bignami, G. F. ;

Blandford, R. D. ;

Bloom, E. D. ;

Bonamente, E. ;

Borgland, A. W. ;

Bouvier, A. ;

Bregeon, J. ;

Brez, A. ;

Brigida, M. ;

Bruel, P. ;

Burnett, T. H. ;

Caliandro, G. A. ;

Cameron, R. A. ;

Caraveo, P. A. ;

Casandjian, J. M. ;

Cavazzuti, E. ;

Cecchi, C. ;

Charles, E. ;

Chekhtman, A. ;

Cheung, C. C. ;

Chiang, J. ;

Ciprini, S. ;

Claus, R. ;

Cohen-Tanugi, J. ;

Cominsky, L. R. ;

Conrad, J. ;

Corbet, R. ;

Costamante, L. ;

Cutini, S. ;

Davis, D. S. ;

Dermer, C. D. ;

de Angelis, A. ;

de Luca, A. ;

de Palma, F. ;

Digel, S. W. .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2009, 183 (01) :46-66

[2] BRIGHT ACTIVE GALACTIC NUCLEI SOURCE LIST FROM THE FIRST THREE MONTHS OF THE FERMI LARGE AREA TELESCOPE ALL-SKY SURVEY [J].

Abdo, A. A. ;

Ackermann, M. ;

Ajello, M. ;

Atwood, W. B. ;

Axelsson, M. ;

Baldini, L. ;

Ballet, J. ;

Barbiellini, G. ;

Bastieri, D. ;

Baughman, B. M. ;

Bechtol, K. ;

Bellazzini, R. ;

Blandford, R. D. ;

Bloom, E. D. ;

Bonamente, E. ;

Borgland, A. W. ;

Bouvier, A. ;

Bregeon, J. ;

Brez, A. ;

Brigida, M. ;

Bruel, P. ;

Burnett, T. H. ;

Caliandro, G. A. ;

Cameron, R. A. ;

Caraveo, P. A. ;

Casandjian, J. M. ;

Cavazzuti, E. ;

Cecchi, C. ;

Charles, E. ;

Chekhtman, A. ;

Chen, A. W. ;

Cheung, C. C. ;

Chiang, J. ;

Ciprini, S. ;

Claus, R. ;

Cohen-Tanugi, J. ;

Colafrancesco, S. ;

Collmar, W. ;

Cominsky, L. R. ;

Conrad, J. ;

Costamante, L. ;

Cutini, S. ;

Dermer, C. D. ;

de Angelis, A. ;

de Palma, F. ;

Digel, S. W. ;

do Couto e Silva, E. ;

Drell, P. S. ;

Dubois, R. ;

Dumora, D. .

ASTROPHYSICAL JOURNAL, 2009, 700 (01) :597-622

[3] THE LARGE AREA TELESCOPE ON THE FERMI GAMMA-RAY SPACE TELESCOPE MISSION [J].

Atwood, W. B. ;

Abdo, A. A. ;

Ackermann, M. ;

Althouse, W. ;

Anderson, B. ;

Axelsson, M. ;

Baldini, L. ;

Ballet, J. ;

Band, D. L. ;

Barbiellini, G. ;

Bartelt, J. ;

Bastieri, D. ;

Baughman, B. M. ;

Bechtol, K. ;

Bederede, D. ;

Bellardi, F. ;

Bellazzini, R. ;

Berenji, B. ;

Bignami, G. F. ;

Bisello, D. ;

Bissaldi, E. ;

Blandford, R. D. ;

Bloom, E. D. ;

Bogart, J. R. ;

Bonamente, E. ;

Bonnell, J. ;

Borgland, A. W. ;

Bouvier, A. ;

Bregeon, J. ;

Brez, A. ;

Brigida, M. ;

Bruel, P. ;

Burnett, T. H. ;

Busetto, G. ;

Caliandro, G. A. ;

Cameron, R. A. ;

Caraveo, P. A. ;

Carius, S. ;

Carlson, P. ;

Casandjian, J. M. ;

Cavazzuti, E. ;

Ceccanti, M. ;

Cecchi, C. ;

Charles, E. ;

Chekhtman, A. ;

Cheung, C. C. ;

Chiang, J. ;

Chipaux, R. ;

Cillis, A. N. ;

Ciprini, S. .

ASTROPHYSICAL JOURNAL, 2009, 697 (02) :1071-1102

[4] On the identification of the Fermi/LAT source 0FGL J2001.0+4352 with a BL Lac [J].

Bassani, L. ;

Landi, R. ;

Masetti, N. ;

Parisi, P. ;

Bazzano, A. ;

Ubertini, P. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2009, 397 (01) :L55-L59

[5] The VLBA Calibrator Survey - VCSI [J].

Beasley, AJ ;

Gordon, D ;

Peck, AB ;

Petrov, L ;

MacMillan, DS ;

Fomalont, EB ;

Ma, C .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2002, 141 (01) :13-21

[6] The second extension of the International Celestial Reference Frame: ICRF-EXT.1 [J].

Fey, AL ;

Ma, C ;

Arias, EF ;

Charlot, P ;

Feissel-Vernier, M ;

Gontier, AM ;

Jacobs, CS ;

Li, J ;

MacMillan, DS .

ASTRONOMICAL JOURNAL, 2004, 127 (06) :3587-3608

[7] The second VLBA Calibrator Survey: VCS2 [J].

Fomalont, EB ;

Petrov, L ;

MacMillan, DS ;

Gordon, D ;

Ma, C .

ASTRONOMICAL JOURNAL, 2003, 126 (05) :2562-2566

[8] The VSOP 5 GHz continuum survey: The prelaunch VLBA observations [J].

Fomalont, EB ;

Frey, S ;

Paragi, Z ;

Gurvits, LI ;

Scott, WK ;

Taylor, AR ;

Edwards, PG ;

Hirabayashi, H .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2000, 131 (01) :95-183

[9] The third EGRET catalog of high-energy gamma-ray sources [J].

Hartman, RC ;

Bertsch, DL ;

Bloom, SD ;

Chen, AW ;

Deines-Jones, P ;

Esposito, JA ;

Fichtel, CE ;

Friedlander, DP ;

Hunter, SD ;

McDonald, LM ;

Sreekumar, P ;

Thompson, DJ ;

Jones, BB ;

Lin, YC ;

Michelson, PF ;

Nolan, PL ;

Tompkins, WF ;

Kanbach, G ;

Mayer-Hasselwander, HA ;

Mücke, A ;

Pohl, M ;

Reimer, O ;

Kniffen, DA ;

Schneid, EJ ;

von Montigny, C ;

Mukherjee, R ;

Dingus, BL .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 1999, 123 (01) :79-202

[10] CGRaBS: An all-sky survey of gamma-ray blazar candidates [J].

Healey, Stephen E. ;

Romani, Roger W. ;

Cotter, Garret ;

Michelson, Peter F. ;

Schlafly, Edward F. ;

Readhead, Anthony C. S. ;

Giommi, Paolo ;

Chaty, Sylvain ;

Grenier, Isabelle A. ;

Weintraub, Lawrence C. .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2008, 175 (01) :97-104

← 1 2 3 4 →