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Issue A&A
Volume 421, Number 2, July II 2004
Page(s) L21 - L24
Section Letters
DOI http://dx.doi.org/10.1051/0004-6361:20040179



A&A 421, L21-L24 (2004)
DOI: 10.1051/0004-6361:20040179

Letter

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

S. Yu. Sazonov1, 2, M. G. Revnivtsev1, 2, A. A. Lutovinov2, R. A. Sunyaev1, 2 and S. A. Grebenev2

1  Max-Planck-Institut für Astrophysik, Karl-Schwarzschild-Str. 1, 85740 Garching bei München, Germany
2  Space Research Institute, Russian Academy of Sciences, Profsoyuznaya 84/32, 117997 Moscow, Russia

(Received 14 May 2004 / Accepted 22 May 2004)

Abstract
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.


Key words: galaxies: Seyfert -- X-rays: general

Offprint request: S. Yu. Sazonov, sazonov@mpa-garching.mpg.de

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