TON 618

TON-618
[[File:|1089px|alt=]]
TON 618, imaged by the Sloan Digital Sky Survey Data Release 9 (DR9). The quasar appears as the bright, bluish-white dot at the center.
Observation data (Epoch J2000.0)
ConstellationCanes Venatici
Right ascension12h 28m 24.9s[1]
Declination+31° 28′ 38″[1]
Redshift2.219[1]
Distance
  • 3.31 Gpc (10.8 Gly)
    (light travel distance)
  • 5.59 Gpc (18.2 Gly)
    (comoving distance, present proper distance)
    [1]
TypeQuasar[1]
Apparent magnitude (V)15.9[1]
Notable featuresHyperluminous quasar in a Lyman-alpha blob
Other designations
FBQS J122824.9+312837, B2 1225+31, QSO 1228+3128, 7C 1225+3145, CSO 140, 2E 2728, Gaia DR1 4015522739308729728[1]
See also: Quasar, List of quasars

TON 618 (abbreviation of Tonantzintla 618) is a hyperluminous, broad-absorption-line, radio-loud quasar and Lyman-alpha blob[2] located near the border of the constellations Canes Venatici and Coma Berenices, with the projected comoving distance of approximately 18.2 billion light-years from Earth.[a] It possesses one of the most massive black holes ever found, at 40.7 billion M☉.[3]

  1. ^ a b c d e f g "NED results for object TON 618". NASA/IPAC EXTRAGALACTIC DATABASE. Archived from the original on 2021-08-15. Retrieved 2021-08-15.
  2. ^ Li, Jianrui; Emonts, B. H. C.; Cai, Z.; Prochaska, J. X.; Yoon, I.; Lehnert, M. D.; Zhang, S.; Wu, Y.; Li, Jianan; Li, Mingyu; Lacy, M.; Villar-Martín, M. (25 November 2021). "Massive Molecular Outflow and 100 kpc Extended Cold Halo Gas in the Enormous Lyα Nebula of QSO 1228+3128". The Astrophysical Journal Letters. 922 (2): L29. arXiv:2111.06409. Bibcode:2021ApJ...922L..29L. doi:10.3847/2041-8213/ac390d. S2CID 244102865.
  3. ^ Cite error: The named reference Ge was invoked but never defined (see the help page).


Cite error: There are <ref group=lower-alpha> tags or {{efn}} templates on this page, but the references will not show without a {{reflist|group=lower-alpha}} template or {{notelist}} template (see the help page).