题目是：Massive Black Holes and galaxies
内容简介：
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 time the mass of
theSun. Professor Genzel will discuss measurements over the last decade,
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. Future
interferometric studies of the Galactic Center black hole promise to be able
to test gravity in its strong field limit. He will also briefly discuss the
cosmological evolution of massive black holes.
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