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arXiv 2102.09091astro-ph.HE
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天鹅座X-1包含一个21太阳质量的黑洞--对大质量星风的暗示

Cygnus X-1 contains a 21-solar mass black hole -- implications for massive star winds

James C. A. Miller-Jones, Arash Bahramian, Jerome A. Orosz, Ilya Mandel, Lijun Gou, Thomas J. Maccarone, Coenraad J. Neijssel, Xueshan Zhao, Janusz Ziółkowski, … 展开作者

James C. A. Miller-Jones, Arash Bahramian, Jerome A. Orosz, Ilya Mandel, Lijun Gou, Thomas J. Maccarone, Coenraad J. Neijssel, Xueshan Zhao, Janusz Ziółkowski, Mark J. Reid, Phil Uttley, Xueying Zheng, Do-Young Byun, Richard Dodson, Victoria Grinberg, Taehyun Jung, Jeong-Sook Kim, Benito Marcote, Sera Markoff, María J. Rioja, Anthony P. Rushton, David M. Russell, Gregory R. Sivakoff, Alexandra J. Tetarenko, Valeriu Tudose, Joern Wilms

摘要:

大质量恒星的演化受到其一生中恒星风损失的质量的影响。这些风限制了恒星最终产生的恒星残余物(如黑洞)的质量。我们使用射电天体测量来精确到黑洞X射线双星天鹅座X-1的距离,我们发现它是$2.22^{+0.18}_{-0.17}$千秒差距。当与以前的光学数据相结合时,这意味着黑洞的质量为$21.2\pm2.2$太阳质量,高于以前的测量值。在高金属丰度系统中形成这样一个高质量黑洞限制了大质量恒星的风质量损失。

英文摘要:

The evolution of massive stars is influenced by the mass lost to stellar winds over their lifetimes. These winds limit the masses of the stellar remnants (such as black holes) that the stars ultimately produce. We use radio astrometry to refine the distance to the black hole X-ray binary Cygnus X-1, which we find to be $2.22^{+0.18}_{-0.17}$ kiloparsecs. When combined with previous optical data, this implies a black hole mass of $21.2\pm2.2$ solar masses, higher than previous measurements. The formation of such a high-mass black hole in a high-metallicity system constrains wind mass loss from massive stars.

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。

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