Our Galactic Center


Details

Date
Tuesday, August 05 2014 - 12:00 pm, PDT
Speaker
Reinhard Genzel
Affiliation
MPI for Extraterrestrial Physics, Garching and University of California, Berkeley
Description

milky way galaxy illustrationAbstract: Evidence has been accumulating for several decades that many galaxies harbor central mass concentrations that may be in the form of black holes with masses between a few million to a few billion times the mass of the Sun.

Dr. Genzel will discuss measurements over the last two decades, employing adaptive optics imaging and spectroscopy on large ground-based telescopes that prove the existence of such a massive black hole in the Center of our Milky Way, beyond any reasonable doubt. These data also provide key insights into its properties and environment. Most recently, a tidally disrupting cloud of gas has been discovered on an almost radial orbit that reached its peri-distance of ~2000 Schwarzschild radii in 2014, promising to be a valuable tool for exploring the innermost accretion zone. Future interferometric studies of the Galactic Center Black hole promise to be able to test gravity in its strong field limit.

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