SMSS J215728.21-360215.1
| SMSS J215728.21-360215.1 | |
|---|---|
| Observation data (Epoch ) | |
| Constellation | Piscis Austrinus |
| Right ascension | 21h 57m 28.21s |
| Declination | −36° 02′ 15.1″ |
| Redshift | 4.75[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[update]. 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
[edit]- ^ a b c 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. arXiv:1805.04317. Bibcode:2018PASA...35...24W. doi:10.1017/pasa.2018.22. S2CID 55363916.
- ^ a b Onken, Christopher A; Bian, Fuyan; Fan, Xiaohui; Wang, Feige; Wolf, Christian; Yang, Jinyi (August 2020). "A thirty-four billion solar mass black hole in SMSS J2157–3602, the most luminous known quasar Free". Monthly Notices of the Royal Astronomical Society. 496 (2): 2309–2314. arXiv:2005.06868. Bibcode:2020MNRAS.496.2309O. doi:10.1093/mnras/staa1635. ISSN 0035-8711.
- ^ Overbye, Dennis (May 17, 2018). "A Very Hungry Black Hole Is Found, Gorging on Stars". The New York Times. Retrieved May 25, 2018.
- ^ Paoletta, Rae (May 15, 2018). "Newly Discovered 'Monster' Black Hole Has a Terrifying Diet". Yahoo News. Retrieved May 25, 2018.
- ^ Scalise, Joseph (May 16, 2018). "Newly discovered black hole is fastest growing on record". The Space Reporter. Archived from the original on July 5, 2020. Retrieved May 15, 2018.
- ^ Papadopoulos, Loukia (May 21, 2018). "Fastest Growing Black Hole Ever Has Been Discovered by Astronomers". Interesting Engineering. Retrieved May 25, 2018.
- ^ Mack, Eric (July 2, 2020). "Monstrous black hole found devouring about one sun every day". CNET.
The yawning void known as J2157 eats stars like ours for breakfast. Perhaps every breakfast.
- ^ Plait, Phil (Jul 1, 2020). "Most massive black hole found in early Universe eats a sun a day". Syfy Bad Astronomy. Syfy.
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