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A Good Hard Look at Cosmic Supermassive Black-Hole Growth
Add to Calendar 2022-01-19T20:45:00 2022-01-19T22:00:00 UTC A Good Hard Look at Cosmic Supermassive Black-Hole Growth
Start DateWed, Jan 19, 2022
3:45 PM
End DateWed, Jan 19, 2022
5:00 PM
Presented By
Niel Brandt (Penn State)
Event Series: Astronomy Colloquium

Title:  A Good Hard Look at Cosmic Supermassive Black-Hole Growth

Abstract: The 7 Ms Chandra X-ray Observatory exposure on the Chandra Deep Field-South (CDF-S) has provided the most sensitive extragalactic X-ray survey by a wide margin. About 1050 X-ray sources have been detected, primarily distant active galactic nuclei (AGNs) and starburst/normal galaxies. The unmatched deep multiwavelength coverage for these sources allows superb follow-up investigations, revealing the details of supermassive black-hole growth over most of cosmic time. I will briefly describe the sources in the 7 Ms CDF-S and highlight some exciting science results. The latter will include (1) measurements of long-term black-hole growth informed by galaxy morphological and physical measurements; (2) constraints upon black-hole growth in the first galaxies as revealed by direct detection and stacking; and (3) the discovery of representatives of a new population of faint, fast X-ray transient sources. Finally, I will discuss some future prospects for X-ray surveys of AGNs in the distant universe, including the recently completed 5 Ms XMM-SERVS survey of the LSST Deep Drilling Fields and new X-ray missions.

Astro Colloquium and 'coffee & cookies' Department gathering (3:30-3:45pm)

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