We present the first results of a monitoring campaign of the high-mass X-ray binary system 4U 1700- 37/HD 153919, carried out with XMM-Newton in February 2001. The system was observed four times, covering 37% of one 3.41-day orbit. The lightcurve shows strong flares, commonly observed in this source. We focus on three intervals in which the data are not affected by pile up: the eclipse, the eclipse egress and a low-flux part around orbital phase φ ∼ 0.28. We discuss the soft excess, the emission lines observed in eclipse and eclipse egress and the consequences for the size of the ionisation zone.
A VAN DER MEER, DI SALVO T, L KAPER, M MNDEZ, M VAN DER KLIS (2004). X-ray spectroscopy of the high-mass X-ray binary 4U 1700-37. In a (pp.624-327) [10.1016/j.nuclphysbps.2004.04.108].
X-ray spectroscopy of the high-mass X-ray binary 4U 1700-37
DI SALVO, Tiziana;
2004-01-01
Abstract
We present the first results of a monitoring campaign of the high-mass X-ray binary system 4U 1700- 37/HD 153919, carried out with XMM-Newton in February 2001. The system was observed four times, covering 37% of one 3.41-day orbit. The lightcurve shows strong flares, commonly observed in this source. We focus on three intervals in which the data are not affected by pile up: the eclipse, the eclipse egress and a low-flux part around orbital phase φ ∼ 0.28. We discuss the soft excess, the emission lines observed in eclipse and eclipse egress and the consequences for the size of the ionisation zone.
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