A&A 426, 253-256 (2004)
DOI: 10.1051/0004-6361:20040498

Broadband X-ray spectrum of intermediate polar V1223 Sgr

M. Revnivtsev^{1, 2}, A. Lutovinov¹, V. Suleimanov³, R. Sunyaev^{1, 2} and V. Zheleznyakov<sup>4

1</sup>  Space Research Institute, Russian Academy of Sciences, Profsoyuznaya 84/32, 117810 Moscow, Russia
    e-mail: revnivtsev@hea.iki.rssi.ru
²  Max-Planck-Institute für Astrophysik, Karl-Schwarzschild-Str. 1, 85740 Garching bei München, Germany
³  Kazan State University, Kremlevskaya 18, 420008, Kazan, Russia
⁴  Institute of Applied Physics, Ulyanova 46, 603950 Nizhny Novgorod, Russia

(Received 22 March 2004 / Accepted 29 June 2004 )

Abstract
We present the broadband phase averaged spectrum of one of the brightest intermediate polars V1223 Sgr, obtained with INTEGRAL and RXTE observatories (3-100 keV). Good statistical quality of the spectrum in a hard X-ray energy band (INTEGRAL/IBIS and RXTE/HEXTE) allowed us to disentangle contributions of a direct optically thin plasma emission and a reflected component to the spectrum of V1223 Sgr. The obtained measurement of the post-shock temperature of the accreting matter give us the information about the mass of the white dwarf and the inclination of the system.

Key words: stars: binaries: general -- X-rays: binaries -- stars: individual: V1223 Sgr

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© ESO 2004

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