The black-hole candidate XTE J1817-330 as seen by XMM-Newton and INTEGRAL |
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| Authors: | Gloria Sala Jochen Greiner Eugenio Bottacini Frank Haberl |
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| Institution: | (1) Max-Plank-Institut für extraterrestrische Physik, P.O. Box 1312, 85741 Garching, Germany |
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| Abstract: | The new black hole candidate XTE J1817-330, discovered on 26 January 2006 with RXTE, was observed with XMM-Newton and INTEGRAL
in February and March 2006, respectively. The X-ray spectrum is dominated by the thermal emission of the accretion disk in
the soft band, with a low absorption column density (N
H=1.77(±0.01)×1021 cm−2) and a maximum disk temperature kT
max=0.68(±0.01) keV, plus a power law component, with the photon index decreasing from 2.66±0.02 to 1.98±0.07 between the two
observations. Several interstellar absorption lines are detected in the X-ray spectrum, corresponding to O I, O II, O III,
O VII and Fe XXIV. We constrain the distance to the system to be in the range 1–5 kpc.
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| Keywords: | X-ray binaries Accretion and accretion disks Black holes |
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