XTE J1650−500 is a binary system containing a stellar-mass black hole candidate and 2000–2001 transient binary X-ray source located in the constellation Ara.

XTE J1650-500是最小的黑洞，仅是太阳质量的3.8倍，是一个其直径为24千米的恒星黑洞，仅比纽约曼哈顿岛大一些。 尽管这个被称为“XTE J1650-500”的黑洞算是小个头，但它却是极具破坏性的“引擎”。 这由一个黑洞和一颗伴星组成，是个 双星系统 它会从伴星那里偷取气体，使自己升温，基于XTE J1650-500黑洞的质量，它释放X射线的强度呈 周期性变化。 天文学家通过观测这种微小的变化，能够测量这颗黑洞的质量。 XTE J1650-500是最小的黑洞，仅是太阳质量的3.8 …

xte j1650-500是一个位于天坛座的恒星质量黑洞候选者，它位于一个双星系统中，其伴星是正常恒星，两者互相围绕旋转一周的周期为0.32天 [1] 。 在2008年的一项研究认为XTE J1650-500的质量只有太阳质量的3.8±0.5倍，使它成为已知质量最小的 黑洞 [ 2 ] 。

2008年4月2日 · NASA scientists have identified the lightest black hole yet, just 3.8 times the mass of the sun, in a binary star system in the Milky Way known as XTE J1650-500. The next smallest black hole,...

One striking aspect of the observation, the scientists say, is that XTE J1650-500 -- a stellar black hole with the approximate mass of 10 suns located about 26,000 light years from Earth -- behaves nearly identically to a 10-million-solar-mass black hole over 100 million light years away in galaxy MCG-6-30-15, as reported in October 2001.

2010年7月13日 · A black hole in a star system known as XTE J1650-500 is the smallest and least-massive black hole yet discovered, at less than four times the mass of the Sun. That is close to the expected limit for how small a black hole can be.

摘要 采用RXTE (Rossi X-ray Timing Explorer)卫星数据研究了黑洞暂现源XTE J1650-500在2001|2002年爆发的时变现象. 采用傅里叶频域上的时延分析方法, 研究 了该源在3个特征傅里叶频率范围|宽限噪声、红噪声及准周期振荡(Quasi-Periodic Oscillation, QPO)内的时变特征.

2002年5月27日 · We investigated the temporal behavior of the new black hole transient XTE J1650-500 with the Rossi X-ray Timing Explorer (RXTE) as the source made a transition to the low/hard state during the decay of the 2001 outburst. We find QPOs in the 4 - 9 Hz range, enhanced time lags and reduced coherence during the state transition.

2018年1月1日 · Using the data observed by Rossi X-ray Timing Explorer, a systematic study of temporal phenomena of the black-hole transient XTE J1650-500 in its 2001–2002 outburst is presented. By using the time lag in the Fourier frequency domain, three characteristic frequency ranges are analysed, namely the band limited noise, red noise, and QPOs (Quasi ...

2003年4月11日 · We report on X-ray observations made with the Rossi X-ray Timing Explorer of the black hole candidate (BHC) transient XTE J1650-500 at the end of its first, and currently only, outburst. By monitoring the source at low luminosities over several months, we found 6 bright ~100 second X-ray flares and long time scale oscillations of the X-ray flux.