W. M. Keck Observatory | 2020 Jun 25
The Second-most Distant Quasar Ever Discovered Now Has a Hawaiian Name
Astronomers have discovered the second-most distant quasar ever found using three Maunakea Observatories in Hawai‘i: W. M. Keck Observatory, the international Gemini Observatory, a Program of NSF’s NOIRLab, and the University of Hawai‘i-owned United Kingdom Infrared Telescope (UKIRT). It is the first quasar to receive an indigenous Hawaiian name, Pōniuāʻena, which means “unseen spinning source of creation, surrounded with brilliance” in the Hawaiian language.
Pōniuāʻena is only the second quasar yet detected at a distance calculated at a cosmological redshift greater than 7.5 and it hosts a black hole twice as large as the other quasar known in the same era. The existence of these massive black holes at such early times challenges current theories of how supermassive black holes formed and grew in the young universe. ...
Spectroscopic observations from Keck Observatory and Gemini Observatory show the supermassive black hole powering Poniua‘ena is 1.5 billion times more massive than our Sun. ...
Monster Black Hole Found in the Early Universe
Gemini Observatory | NSF NOIRLab | 2020 Jun 25
Astronomers Discover 'Monster' Quasar from Early Universe
University of Arizona | 2020 Jun 25
A Beacon from the Early Universe
University of California, Santa Barbara | 2020 Jun 26
Pōniuā'ena: A Luminous z = 7.5 Quasar Hosting a 1.5 Billion Solar Mass Black Hole ~ Jinyi Yang et al
- arXiv.org > astro-ph > arXiv:2006.13452 > 24 Jun 2020