ilan
06-26-2020, 12:10 PM
A monster quasar in the early universe
Deborah Byrd in SPACE | June 26, 2020
Astronomers just announced the most massive quasar yet known in the early universe. Its monster central black hole has a mass equivalent to 1.5 billion of our suns. The object has been given a Hawaiian name, Poniua’ena.
https://earthsky.org/upl/2020/06/quasar-black-hole-original.png
Artist’s concept of a quasar, a very distant and exceedingly luminous object powered by a central supermassive black hole. Image via International Gemini Observatory/ NOIRLab/ NSF/ AURA/ P. Marenfeld/ UANews.
Although quasars are found over a range of distances, most are exceedingly far away. The very distant quasars exist at a time shortly after the Big Bang, when our universe was young. Our current understanding of quasars is that they lie in the centers of young, active galaxies. The luminous, powerful and energetic quasars are thought to be driven by a process of accretion onto supermassive black holes. This week, astronomers announced the discovery of the most massive quasar yet known in the early universe. Its monster central black hole has a mass equivalent to 1.5 billion of our suns. By contrast, the quiescent and relatively sedate black hole at the heart of our Milky Way galaxy has a mass of only 4 million suns. In honor of the new quasar’s discovery via telescopes at the summit of Mauna Kea, the quasar has been given the Hawaiian name Poniua’ena, which means:
… unseen spinning source of creation, surrounded with brilliance.
The newly discovered quasar is formally designated J1007+2115. It’s the first quasar to receive an Indigenous name, created by 30 Hawaiian immersion school teachers during a workshop led by the A Hua He Inoa group, part of the ‘Imiloa Astronomy Center – an astronomy and culture education center – in Hilo, Hawaii.
Deborah Byrd in SPACE | June 26, 2020
Astronomers just announced the most massive quasar yet known in the early universe. Its monster central black hole has a mass equivalent to 1.5 billion of our suns. The object has been given a Hawaiian name, Poniua’ena.
https://earthsky.org/upl/2020/06/quasar-black-hole-original.png
Artist’s concept of a quasar, a very distant and exceedingly luminous object powered by a central supermassive black hole. Image via International Gemini Observatory/ NOIRLab/ NSF/ AURA/ P. Marenfeld/ UANews.
Although quasars are found over a range of distances, most are exceedingly far away. The very distant quasars exist at a time shortly after the Big Bang, when our universe was young. Our current understanding of quasars is that they lie in the centers of young, active galaxies. The luminous, powerful and energetic quasars are thought to be driven by a process of accretion onto supermassive black holes. This week, astronomers announced the discovery of the most massive quasar yet known in the early universe. Its monster central black hole has a mass equivalent to 1.5 billion of our suns. By contrast, the quiescent and relatively sedate black hole at the heart of our Milky Way galaxy has a mass of only 4 million suns. In honor of the new quasar’s discovery via telescopes at the summit of Mauna Kea, the quasar has been given the Hawaiian name Poniua’ena, which means:
… unseen spinning source of creation, surrounded with brilliance.
The newly discovered quasar is formally designated J1007+2115. It’s the first quasar to receive an Indigenous name, created by 30 Hawaiian immersion school teachers during a workshop led by the A Hua He Inoa group, part of the ‘Imiloa Astronomy Center – an astronomy and culture education center – in Hilo, Hawaii.
