Astronomy:SMSS J215728.21-360215.1

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SMSS J215728.21-360215.1
Observation data (Epoch )
ConstellationPiscis Austrinus
Right ascension 21h 57m 28.21s
Declination−36° 02′ 15.1″
Redshift4.75[1] or 4.692[2]
Other designations
J2157-3602
See also: Quasar,List of quasars]]

SMSS J215728.21-360215.1, commonly known as J2157-3602, is one of the fastest growing black holes and one of the most powerful quasars known to exist (As of 2021). The quasar is located at redshift 4.75,[1] corresponding to a comoving distance of 2.5×1010 ly from Earth and to a light-travel distance of 1.25×1010 ly. It was discovered with the SkyMapper telescope at Australian National University's Siding Spring Observatory, announced in May 2018. It has an intrinsic bolometric luminosity of 6.95×1014 L☉ (2.66×1041 W) and an absolute magnitude of -32.36.[1][3][4][5][6]

In July 2020 the black hole associated with the quasar was reported to be 34 billion solar masses, based on a study published in Monthly Notices of the Royal Astronomical Society.[7][8][2]

References

  1. ↑ 1.0 1.1 1.2 Wolf, Christian; Bian, Fuyan; Onken, Christopher; Schmidt, Brian; Tisserand, Patrick; Alonzi, Noura; Hon, Wei Jeat; Tonry, John (May 11, 2018). "Discovery of the most ultra-luminous QSO using Gaia, SkyMapper and WISE". Publications of the Astronomical Society of Australia 35. doi:10.1017/pasa.2018.22. Bibcode: 2018PASA...35...24W. 
  2. ↑ 2.0 2.1 Christopher A Onken; Fuyan Bian; Xiaohui Fan; Feige Wang; Christian Wolf; Jinyi Yang (August 2020), "thirty-four billion solar mass black hole in SMSS J2157–3602, the most luminous known quasar", Monthly Notices of the Royal Astronomical Society 496 (2): 2309–2314, doi:10.1093/mnras/staa1635, Bibcode: 2020MNRAS.496.2309O 
  3. ↑ Overbye, Dennis (May 17, 2018). "A Very Hungry Black Hole Is Found, Gorging on Stars". The New York Times. https://www.nytimes.com/2018/05/17/science/hungry-black-hole.html. 
  4. ↑ Paoletta, Rae (May 15, 2018). "Newly Discovered 'Monster' Black Hole Has a Terrifying Diet". Yahoo News. https://www.yahoo.com/news/newly-discovered-apos-monster-apos-164700567.html. 
  5. ↑ Scalise, Joseph (May 16, 2018). "Newly discovered black hole is fastest growing on record". The Space Reporter. https://thespacereporter.com/article.php?n=newly-discovered-black-hole-is-fastest-growing-on-record&id=147140. 
  6. ↑ Papadopoulos, Loukia (May 21, 2018). "Fastest Growing Black Hole Ever Has Been Discovered by Astronomers". Interesting Engineering. https://interestingengineering.com/fastest-growing-black-hole-ever-has-been-discovered-by-astronomers. 
  7. ↑ Eric Mack (July 2, 2020), Monstrous black hole found devouring about one sun every day, CNet, https://www.cnet.com/news/monstrous-black-hole-found-devouring-about-one-sun-every-day/, "The yawning void known as J2157 eats stars like ours for breakfast. Perhaps every breakfast." 
  8. ↑ Phil Plait (Jul 1, 2020), "IN THE DISTANT UNIVERSE A SUPERMASSIVE BLACK HOLE EATS A SUN *A DAY*", Syfy Wire: Bad Astronomy (Syfy), https://www.syfy.com/syfywire/supermassive-black-hole-eats-a-sun-a-day 




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