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Physics & Astronomy Colloquium - Dr. William Forman - Harvard-Smithsonian

Title: "Fossil Records of Outbursts From Supermassive Black Holes and the Effects of Outbursts on the Evolution of Gas Rich Galaxies, Groups, Galaxy Clusters"

Thursday, November 10, 2016
3:30pm – 4:30pm
Wilder 111
Intended Audience(s): Public
Categories: Lectures & Seminars

Abstract: Supermassive black holes (SMBHs) play key roles in galaxy and cluster
evolution.  This is most clearly seen in the "fossil record" that is
imprinted in the gas rich atmospheres of early type galaxies, groups,
and clusters by powerful SMBH outbursts.  I will discuss the outburst
history of M87 as chronicled in its radio and X-ray images and the
implications of these outbursts for heating gas rich environments. In
addition to discussing the outburst around M87, I will review the
results of a galaxy survey that shows the effects of SMBH feedback on
early type galaxies and which suggests that, at very early epochs,
SMBH outbursts have truncated star formation and altered the "normal"
evolution of the stellar component of galaxy bulges.  I conclude by
describing a future X-ray mission, X-ray Surveyor, with sub-arcsecond angular
resolution, that would allow us to study the evolution of SMBHs and
hot, X-ray emitting atmospheres from high redshifts to the
present.

For more information, contact:
Tressena Manning
tressena.a.manning@dartmouth.edu
603-646-2854
Permanent URL to this event: https://physics.dartmouth.edu/events/event?event=41136

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