CFHQS J2329-0301

Last updated
CFHQS J2329-0301
Observation data (Epoch J2000.0)
Constellation Pisces
Right ascension  23h 29m 08s
Declination −03° 01 58
Redshift 6.43
Distance 12.7  Gly (3.9  Gpc)
Apparent magnitude  (V)21.7
Other designations
CFHQS J2329-0301 , CFHQS J232908-030158
See also: Quasar, List of quasars

CFHQS J2329-0301 is a quasar discovered in 2007 by the Canada-France-Hawaii High-z Quasar Survey (CHFQS) using the Canada-France-Hawaii Telescope. Until the discovery of ULAS J1120+0641 on June 2011, it was the farthest known quasar with a light travel distance of about 12.7 billion light years from Earth. Because it is very bright, its light can be used to determine the properties of the gas in front of it. The black hole powering the quasar is thought to have about 500 million solar masses. [1]

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SDSS J0100+2802 (SDSS J010013.02+280225.8) is a hyperluminous quasar located near the border of the constellations Pisces and Andromeda. It has a redshift of 6.30, which corresponds to a distance of 12.8 billion light-years from Earth and was formed 900 million years after the Big Bang. And it appears to diverge at a velocity of 1.3782e+8 m/s. It unleashes an immense amount of power equivalent to 3×1041 watts, which corresponds to the absolute bolometric magnitude of -31.7 which is 4.3×1014 times the luminosity of the Sun, and 40,000 times as luminous as all of the 400 billion stars of the Milky Way galaxy combined. SDSS J0100+2802 is about four times more luminous than SDSS J1148+5251, and seven times more luminous than ULAS J1120+0641, the most distant quasar known, although it is only less than fourth as luminous as HS 1946+7658, the most luminous quasar known. It harbors a black hole with mass of 12 billion solar masses (estimated (1.24±0.19)×1010M according to MgII emission line correlations). This makes it one of the most massive black holes discovered so early in the universe, although it is only less than one fifth as massive as TON 618, the most massive black hole known. The diameter of this black hole is about 70.9 billion kilometres, seven times the diameter of Pluto's orbit.

TON 618 is a very distant and extremely luminous quasar—technically a hyperluminous, broad-absorption line, radio-loud quasar—located near the North Galactic Pole in the constellation Canes Venatici. TON 618 is currently the most massive black hole ever found with a mass of 66 billion M.

ULAS J1342+0928 most distant known Quasar

ULAS J1342+0928 is the most distant known quasar detected and contains the most distant and oldest known supermassive black hole, at a reported redshift of z = 7.54, surpassing the redshift of 7 for the previously known most distant quasar ULAS J1120+0641. The ULAS J1342+0928 quasar is located in the Boötes constellation. The related supermassive black hole is reported to be "800 million times the mass of the Sun".

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 2018. The quasar is located at redshift 4.75, corresponding to a comoving distance of 25×109 ly from Earth and to a light-travel distance of 12.5×109 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).

Pōniuāʻena is the second most-distant quasar known, with a measured redshift of z = 7.52 or a lookback time of 13.02 billion years. Its 1.5 billion–solar mass black hole is the most distant known black hole with a mass of over one billion solar masses, and models indicate it must have formed not later than 100 million years after the Big Bang, before reionization. Its discovery was announced in June 2020. Only the quasar ULAS J1342+0928 is known to be more distant.

References

See also

Records
Preceded by
SDSS J114816.64+525150.3
Most distant quasar
2007  2011
Succeeded by
ULAS J1120+0641