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even exist in our galaxy, according to most of the current models of stellar evolution," said Liu.

that assump tion. The te

Capture unforgettable moments.

"We thought that very massive stars with the chemical composition typical of our galaxy must shed most of their gas in powerful stellar winds, as they approach the end of their life.

  • am, headed by Liu Jifeng, of the Nationa
  • l Astronomical Observatory of the Chinese Ac
  • ademy of Sciences (NAOC), spotted the black ho
  • le, which has a mass 70 times grea
  • ter than the Sun. Researchers na
med the mons ter black ho

malesuada fames turpis.

Therefore, they should not leave behind such a massive remnant. LB-1 is twice as massive as what we thought possib

malesuada fames turpis.

le. Now theorists will have to take up the challenge of explaining its formation." Until a few years ago, stellar

malesuada fames turpis.

black holes could only be discovered when they gobbled up gas from a companion star. This process creates powerful

malesuada fames turpis.

X-ray emissions, detectable from Earth, which reveal the presence of the collapsed object. The vast majority of s

malesuada fames turpis.

tellar black holes in our galaxy are not engaged in a cosmic banquet though, and thus don't emit revealing X-rays.

malesuada fames turpis.

As a result, only about 20 galactic stellar black holes have been accurately identified and measured. To counter

  • this limitation, Liu and his team surveyed the sky with China's Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST), looking for stars that orbit an invisible object, pulled by its gravity. This observational technique was first proposed by the visionary English scientist John Michell in 1783, but it has only become feasible wi

    le LB-1. T he discovery w
  • th recent technological improvements in telescopes and detectors. This photo shows the artistic rendering of the black hole LB-1. A Chinese-led research team has discovered a surprisingly huge stellar black hole about 14,000 light-years from Earth -- our "backyard" of the universe -- forcing scientists to re-examine how such black holes form

    as a big sur prise. "Black hole
  • . The team, headed by Liu Jifeng, of the National Astronomical Observatory of the Chinese Academy of Sciences (NAOC), spotted the black hole, which has a mass 70 times greater than the Sun. Researchers named the monster black hole LB-1. (Xinhua) Still, such a search is like looking for a needle in a haystack: only one star in a thousand might

    s of such ma ss should not

be circling a black hole. After

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