Pōniuāʻena (/ˌpoʊniuːɑːˈɛnə/), also named J100758.264+211529.207 or J1007+2115, is the third most-distant quasar known, with a measured redshift of z = 7.515 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 that 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 quasars ULAS J1342+0928 (z = 7.54) and J0313–1806 (z = 7.64) are known to be more distant.
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| - Pōniuāʻena (fr)
- J1007+2115 (it)
- Pōniuāʻena (en)
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| - J1007+2115 è un quasar collocato nella costellazione del Leone. Contiene il secondo buco nero più lontano conosciuto, oltre che il più massiccio risalente all'universo primordiale. Si tratta del primo buco nero a cui è stato assegnato un nome indigeno hawaiano (Pōniuāʻena). (it)
- Pōniuāʻena (/ˌpoʊniuːɑːˈɛnə/), also named J100758.264+211529.207 or J1007+2115, is the third most-distant quasar known, with a measured redshift of z = 7.515 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 that 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 quasars ULAS J1342+0928 (z = 7.54) and J0313–1806 (z = 7.64) are known to be more distant. (en)
- Pōniuāʻena (nom hawaïen signifiant « tourné jusqu'à ce qu'il brille »[réf. nécessaire]), aussi désigné J100758.264+211529.207 et abrégé en J1007+2115, est l'un des quasars les plus lointains à avoir été observé (août 2022). Son décalage vers le rouge est de 7,52, soit une distance de voyage de la lumière de 13,02 milliards d'années-lumière et une distance comobile de 29,3 milliards d'années-lumière. Ce quasar est le deuxième quasar le plus lointain à comporter un trou noir d'une masse supérieure à 1 milliard de masses solaires, juste après le quasar QSO J0313-1806. Il a été découvert début juin 2020 par une équipe d'astronomes hawaïens grâce au télescope Keck I de l'observatoire W. M. Keck, mais n'est révélé qu'en fin juin 2020. Les seules quasars plus distants connus sont ULAS J1342+0928 (fr)
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| - J1007+2115 (en)
- Pōniuāʻena (en)
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| - A depiction of Pōniuāʻena created by NOIRLab (en)
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| - J100758.264+211529.207 (en)
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| - Pōniuāʻena (nom hawaïen signifiant « tourné jusqu'à ce qu'il brille »[réf. nécessaire]), aussi désigné J100758.264+211529.207 et abrégé en J1007+2115, est l'un des quasars les plus lointains à avoir été observé (août 2022). Son décalage vers le rouge est de 7,52, soit une distance de voyage de la lumière de 13,02 milliards d'années-lumière et une distance comobile de 29,3 milliards d'années-lumière. Ce quasar est le deuxième quasar le plus lointain à comporter un trou noir d'une masse supérieure à 1 milliard de masses solaires, juste après le quasar QSO J0313-1806. Il a été découvert début juin 2020 par une équipe d'astronomes hawaïens grâce au télescope Keck I de l'observatoire W. M. Keck, mais n'est révélé qu'en fin juin 2020. Les seules quasars plus distants connus sont ULAS J1342+0928 (z = 7,54) et QSO J0313-1806 (z = 7,64). (fr)
- Pōniuāʻena (/ˌpoʊniuːɑːˈɛnə/), also named J100758.264+211529.207 or J1007+2115, is the third most-distant quasar known, with a measured redshift of z = 7.515 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 that 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 quasars ULAS J1342+0928 (z = 7.54) and J0313–1806 (z = 7.64) are known to be more distant. The quasar was primarily observed at the Mauna Kea Observatories on the island of Hawaiʻi; it was first discovered at the Gemini Observatory and was further identified using data from the W. M. Keck Observatory, UKIRT, Magellan Telescopes, and ALMA. Hawaiian language experts at ʻImiloa Astronomy Center gave it the name Pōniuāʻena [ˌpoːnijuwaːˈʔɛnə], which "evokes the unseen spinning source of creation, surrounded by brilliance." (en)
- J1007+2115 è un quasar collocato nella costellazione del Leone. Contiene il secondo buco nero più lontano conosciuto, oltre che il più massiccio risalente all'universo primordiale. Si tratta del primo buco nero a cui è stato assegnato un nome indigeno hawaiano (Pōniuāʻena). (it)
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