Broadband X-ray spectrum of GRS 1734-292, a luminous Seyfert 1 galaxy behind the Galactic Center

被引:15
作者
Sazonov, SY
Revnivtsev, MG
Lutovinov, AA
Sunyaev, RA
Grebenev, SA
机构
[1] Max Planck Inst Astrophys, D-85740 Munich, Germany
[2] Russian Acad Sci, Inst Space Res, Moscow 117997, Russia
关键词
galaxies : Seyfert; X-rays : general;
D O I
10.1051/0004-6361:20040179
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Based on a deep survey of the Galactic Center region performed with the INTEGRAL observatory, we measured for the first time the hard X-ray (20-200 keV) spectrum of the Seyfert 1 galaxy GRS 1734-292 located in the direction of the Galactic Center. We extended the spectrum to lower energies using archival GRANAT and ASCA observations. The broadband X-ray spectrum is similar to those of other nearby luminous AGNs, having a power law shape without cutoff up to at least 100 keV.
引用
收藏
页码:L21 / L24
页数:4
相关论文
共 22 条
[1]  
BASSANI L, 2004, IN PRESS ESA
[2]  
CHURAZOV E, 1992, IAU CIRC, P5623
[3]  
DICOCCO GD, 2004, IN PRESS ESA
[4]   Hard X-ray spectra of broad-line radio galaxies from the Rossi X-Ray Timing Explorer [J].
Eracleous, M ;
Sambruna, R ;
Mushotzky, RF .
ASTROPHYSICAL JOURNAL, 2000, 537 (02) :654-666
[5]  
FINOGUENOV A, 1995, ASTRON ASTROPHYS, V300, P101
[6]   A unifying view of the spectral energy distributions of blazars [J].
Fossati, G ;
Maraschi, L ;
Celotti, A ;
Comastri, A ;
Ghisellini, G .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1998, 299 (02) :433-448
[7]   The average X-ray/gamma-ray spectrum of radio-quiet Seyfert 1s [J].
Gondek, D ;
Zdziarski, AA ;
Johnson, WN ;
George, IM ;
McNaronBrown, K ;
Magdziarz, P ;
Smith, D ;
Gruber, DE .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1996, 282 (02) :646-652
[8]   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
[9]  
JOURDAIN E, 1992, ASTRON ASTROPHYS, V256, pL38
[10]   EGRET LIMITS ON HIGH-ENERGY GAMMA-RAY EMISSION FROM X-RAY-SELECTED AND LOW-ENERGY GAMMA-RAY-SELECTED SEYFERT-GALAXIES [J].
LIN, YC ;
BERTSCH, DL ;
DINGUS, BL ;
FICHTEL, CE ;
HARTMAN, RC ;
HUNTER, SD ;
KANBACH, G ;
KNIFFEN, DA ;
MATTOX, JR ;
MAYERHASSELWANDER, HA ;
MICHELSON, PF ;
VONMONTIGNY, C ;
NOLAN, PL ;
SCHNEID, E ;
SREEKUMAR, P ;
THOMPSON, DJ .
ASTROPHYSICAL JOURNAL, 1993, 416 (02) :L53-L56