用暗致密天体使星光变暗
Dimming Starlight with Dark Compact Objects
AI总结:
本文提出通过暗致密天体对星光的色散变暗效应来搜寻暗物质,并利用EROS-2和OGLE巡天数据验证该方法可约束暗区并有望发现致密天体中的暗物质。
摘要:
我们展示了一种搜寻暗致密天体的新技术。当构成暗致密天体的暗物质与光子相互作用时,该致密天体能够使穿过它的光发生色散。当这些天体从地球与遥远恒星之间经过时,它们就像“灯罩”一样使恒星变暗。我们研究了如何在微引力透镜巡天中搜寻银河系内暗物质团块引起的变暗效应,这类巡天测量恒星亮度随时间的变化。利用EROS-2和OGLE巡天,我们表明对现有数据进行变暗分析可用于约束暗区,并有可能用于发现致密天体中的暗物质。
英文摘要:
We demonstrate a new technique to search for dark compact objects. When dark matter comprising a dark compact object interacts with photons, the compact object can disperse light traveling though it. As these objects pass between Earth and a distant star, they act as "lampshades" that dim the star. We examine how dimming effects from clumps of dark matter in the Galaxy could be searched for in microlensing surveys, which measure the brightness of stars as a function of time. Using the EROS-2 and OGLE surveys, we show that a dimming analysis of existing data can be used to constrain dark sectors, and could be used to discover dark matter in compact objects.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。