J1144–4308: Difference between revisions
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Revision as of 15:34, 15 June 2022
  Location of J1144-4308 in the constellation Centaurus | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Centaurus |
| Right ascension | 11h 44m 47.77s |
| Declination | −43° 08′ 59.3″ |
| Characteristics | |
| Astrometry | |
| Details | |
| Database references | |
| SIMBAD | J114447.77-430859.3 data |
SMSS J114447.77-430859.3 or J1144 or J1144-4308 is the optically brightest (unbeamed) quasar (g = 14.5 ABmag, K = 11.9 Vegamag) but also a supermassive black hole, that appears from Earth to be in the constellation Centaurus at RA 11h44m and Declination -43, near the Southern Cross (Crux). The SkyMapper Southern Survey (SMSS) was used to ascertain its spectral properties.[1]
J1144 was identified during a search for binary stars.[1][2]
After examining various data sets, the study group determined that J1144 is the most luminous quasar known over the last ~9 Gyr of cosmic history, having a luminosity 8 times greater than 3C 273 n Virgo.[1]
References
- ^ a b c Discovery of the most luminous quasar of the last 9 Gyr, Christopher A. Onken, Samuel Lai, Christian Wolf, Adrian B. Lucy, Wei Jeat Hon, Patrick Tisserand, Jennifer L. Sokoloski, Gerardo J. M. Luna, Rajeev Manick, Xiaohui Fan, Fuyan Bian; arXiv (DOI: https://doi.org/10.48550/arXiv.2206.04204] 2022-06-09 accessed 2-22-06-15
- ^ Fastest-growing black hole of past 9 billion years discovered in bright constellation of Centaurus, Gemma Conroy, ABC News Online, 2022-06-15