Gravitational microlensing as a method of detecting disk dark matter and faint disk stars
Gravitational microlensing as a method of detecting disk dark matter and faint disk stars
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引力微透镜作为探测盘暗物质和微弱盘恒星的方法
DOI：
10.1086/186028
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发表时间：
1991
期刊：
影响因子：
--
通讯作者：
C. Stubbs
中科院分区：
文献类型：
--
作者：
K. Griest;C. Alcock;T. Axelrod;D. Bennett;K. Cook;K. Freeman;Hye;S. Perlmutter;B. Peterson;P. Quinn;A. Rodgers;C. Stubbs
银河系核球中恒星的引力微透镜被提议作为探测0.001至0.1太阳质量范围内的盘状天体质量密度的方法。如果存在这种形式的盘状暗物质，就会发现一个相当大的速率，即使没有任何暗物质，也会发现一个显着的微透镜速率，这是由于已知存在的微弱的低质量盘状恒星。这样的搜索将提供关于盘暗物质问题的新信息，探测低端恒星质量函数，并搜索晕暗物质，所有这些都与正在进行的LMC微透镜晕暗物质搜索的预期速度相当。参考文献17篇。
Gravitational microlensing of stars in the Galactic bulge is proposed as a method of probing the mass density of disk objects in the 0.001 to 0.1 solar mass range. A substantial rate is found if disk dark matter of this form exists, and even without any dark matter, a significant microlensing rate is found, owing to the faint low-mass disk stars which are known to exist. Such a search would provide new information on the disk dark matter question, probe the low-end stellar mass function, and also search for halo dark matter, all with rates comparable to those expected for the ongoing LMC microlensing halo dark matter searches. 17 refs.