M33 X-7 是 三角座星系 中的一顆 恆星 與 黑洞 組成的 聯星 系統，即該系統由一顆 恆星質量黑洞 和一顆恆星的伴星組成。 估計在M33 X-7中的黑洞質量是 太陽 的15.65倍（M☉） [3][4] （天鹅座X-1 以前是已知最大的恆星黑洞，然而現在已經被電磁觀測到的黑洞所取代，不只是因為估計質量增加了 [5]，還有許多 LVK 探測到的黑洞聯星成員 [6]）。 據估計，該系統的總質量約為85.7 M☉，這將使其成為質量最大的恆星黑洞聯星系統。 黑洞正在吞噬它的夥伴：一顆70太陽質量 …

M33 X-7 is a black hole binary system in the Triangulum Galaxy. The system is made up of a stellar-mass black hole and a companion star.

2011年1月24日 · The system is known as M33 X-7 -- the seventh X-ray source discovered in M33, the spiral Triangulum galaxy. It is about 2.7 million light-years from Earth. Astronomers discovered the system because it glows brightly in X-rays. The black hole's powerful gravity pulls gas from the surface of the supergiant star.

The announcement of M33 X-7 as the heaviest stellar black hole was made in a flash - the second that Nature's embargo expired - but the struggle to understand this record-breaking binary system lasted 26 years. That's long enough for the black hole and its companion to dance around each other more than 2500 times!

2006年7月20日 · The first observations conducted as part of the Chandra ACIS survey of M33 (ChASeM33) sampled the eclipsing X-ray binary M33 X-7 over a large part of the 3.45 day orbital period and have resolved eclipse ingress and egress for the first time.

M33 X-7: A binary system in the galaxy M33 where a black hole is in orbit around a large companion star. (Credit: Illustration: NASA/CXC/M.Weiss; X-ray: NASA/CXC/CfA/P.Plucinsky et al.; Optical: NASA/STScI/SDSU/J.Orosz et al.)

2010年10月20日 · The X-ray source M33 X-7 in the nearby galaxy Messier 33 is among the most massive X-ray binary stellar systems known, hosting a rapidly spinning, 15.65M⊙ black hole orbiting an underluminous ...

Astronomers have located an exceptionally massive black hole - almost 16 times the mass of the Sun - in orbit around a huge companion star. By combining observations from NASA's Chandra X-ray Observatory with optical data from the Gemini telescope, the black hole known as M33 X-7 was determined to be the most massive black hole in its class.

The first observations conducted as part of the Chandra ACIS survey of M33 (ChASeM33) sampled the eclipsing X-ray binary M33 X-7 over a large part of the 3.45 day orbital period and have resolved eclipse ingress and egress for the first time.

2006年7月20日 · The first observations conducted as part of the Chandra ACIS survey of M33 (ChASeM33) sampled the eclipsing X-ray binary M33 X-7 over a large part of the 3.45 day orbital period and have...