The EXOSAT observations of SS Cygni

The EXOSAT observations of SS Cygni
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天鹅号 (SS Cygni) 的 EXOSAT 观测

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发表时间:
1992
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通讯作者:
M. Watson
M. Watson
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文献类型:
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作者:
M. H. Jones;M. Watson

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介绍了 1983 年 11 月至 1984 年 9 月期间使用 EXOSAT 对 SS Cygni 进行的一系列九次观测。 LE 和 ME 仪器分别对不同的软和硬 X 射线发射成分进行了光谱解析。在静止状态下,源显示硬 X 射线发射,2-10 keV 光度为 1.2 × 10 33 (d/200 pc) 2 erg/s。硬X射线发射在爆发时受到抑制,但光电吸收没有显着增加。软 X 射线发射大致​​遵循光学行为,但爆发比光学行为延迟了 0.5-1.1 d。
A series of nine observations of SS Cygni made using EXOSAT between 1983 November and 1984 September are presented. Distinct soft and hard X-ray emitting components were spectrally resolved by the LE and ME instruments respectively. In quiescence the source shows hard X-ray emission with a 2-10 keV luminosity of 1.2 × 10 33 (d/200 pc) 2 erg/s. The hard X-ray emission is suppressed in outburst but shows no significant increase in photoelectric absorption. The soft X-ray emission approximately follows the optical behaviour, but the outburst is delayed by 0.5-1.1 d from the optical