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HCN-0.009-0.044

Summary

HCN-0.009-0.044 is an interstellar gas cloud near the centre of the Milky Way. The cloud is only 25 light-years from Sagittarius A*. It likely hosts an intermediate-mass black hole with a mass of 32,000 times that of the Sun.[1] HCN-0.009-0.044 has a diameter of about 3 light years, and has relative gas movements of 40 km/s, with a kinematic energy of over 1047 ergs. The HCN in the name indicates the presence of hydrogen cyanide (HCN). HCN radiation at 354.6 GHz in the submillimeter was detected from the cloud.[2]

HCN-0.009-0.044
Nebula
Observation data
See also: Lists of nebulae

References edit

  1. ^ National Institutes of Natural Sciences (1 March 2019). "Hiding black hole found". phys.org. Retrieved 1 March 2019.
  2. ^ ""Stray Black Holes" discovered in the Galactic Centre – James Clerk Maxwell Telescope". www.eaobservatory.org. 18 July 2017. Retrieved 1 March 2019.

Further reading edit

  • Takekawa, Shunya; Oka, Tomoharu; Iwata, Yuhei; Tsujimoto, Shiho; Nomura, Mariko (2019). "Indication of Another Intermediate-mass Black Hole in the Galactic Center". The Astrophysical Journal. 871 (1): L1. arXiv:1812.10733. Bibcode:2019ApJ...871L...1T. doi:10.3847/2041-8213/aafb07. S2CID 119418223.