【科学家发现迄今为止观测到的最大的黑洞】

【科学家发现迄今为止观测到的最大的黑洞】马克斯普朗克研究所的Kianusch Mehrgan及其同事发现了Holm 15A中心观测到的最大的黑洞,这是一个距离我们大约7亿光年的星系。它比以前观测到的最大黑洞要大两倍多,比天文学家预期的大约四到九倍。这一发现可以极大地扩展人类对宇宙规模的理解,更不用说像星系形成这样的基本原理了。https://www.engadget.com/2019/08/11/largest-black-hole-to-date/

Scientists find the largest observed black hole to date

It's 10,000 times larger than the one at the heart of the Milky Way.

Astronomers aren't done with major black hole discoveries this year. The Max Planck Institute's Kianusch Mehrgan and colleagues have found the largest black hole ever observed at the center of Holm 15A, a galaxy about 700 million light-years away. It's more than twice as largest as the previous observed record-setter at 40 billion times the mass of the Sun, and 10,000 times the mass of the black hole at the core of the Milky Way.

The team spotted the black hole using data from the Very Large Telescopearray. The wealth of extra data from the Chile observatory helped them map the structure of Holm 15A in unprecedented detail, helping them run simulations to explain the galaxy's formation and its unusually faint center. Simply speaking, the black hole is so powerful and large (its radius is about 790AU) that it has either swallowed up the closest stars or tossed them toward the galaxy's edge.

This isn't necessarily largest black hole detected. That distinction goes to the quasar TON 618 -- indirect studies suggest its black hole could be 66 billion times the Sun's mass. It's still gigantic, though, and it's about four to nine times than astronomers expected. The discovery could significantly expand humanity's understanding of the scale of the universe, not to mention fundamentals like galaxy formation.

 


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