Optical and Infrared Observations of Black Hole Binaries and Related Systems

黑洞双星及相关系统的光学和红外观测

• 批准号: 0098421
• 负责人: Charles Bailyn
• 金额: $ 29.86万
• 依托单位: Yale University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-08-15 至 2004-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0098421&HistoricalAwards=false
• 关键词: Optical; Infrared; Observations; Black; Hole

"Optical and Infrared Observations of Black Hole Binaries and Related Systems"AST- 0098421Optical and infrared observations of X-ray sources with soft X-ray transients will be carried out. These objects are binary star systems, which consist of an accreting compact object and a less massive companion star that is the donor. Optical and infrared observations show that the compact object is possibly a black hole in many cases although the results are controversial. In quiescence, the optical light is dominated by that of the companion star and orbital parameters can be measured which indicate that, in most cases, the mass of the compact object is above the 3 solar mass upper limit for a neutron star. At the times of X-ray outburst, the optical and infrared radiation is dominated by that from the accretion flow and from X-ray irradiation of the secondary star and surrounding material. Simultaneous optical and X-ray observations are needed to describe the geometry and physics of these objects which are presently providing some of the strongest evidence for the existence of black holes.

“黑洞双星及相关系统的光学和红外观测”AST-0098421将进行软X射线瞬变的X射线源的光学和红外观测。这些天体是双星系统，由一个吸积致密天体和一个质量较小的供体伴星组成。光学和红外观测表明，在许多情况下，致密天体可能是黑洞，尽管结果存在争议。在静止状态下，可见光以伴星的可见光为主，并且可以测量轨道参数，这表明在大多数情况下，致密天体的质量高于中子星的 3 个太阳质量上限。 X射线爆发时，光学辐射和红外辐射主要来自吸积流以及副星和周围物质的X射线辐射。需要同时进行光学和 X 射线观测来描述这些物体的几何形状和物理性质，这些物体目前为黑洞的存在提供了一些最有力的证据。