Evenings with Astronomers: Black Holes, Galaxies and the Evolution of the Universe – Dr. Meg Urry

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Black holes form in the young Universe and, over the next 13 billion years or so, accrete enormous amounts of matter from the surrounding galaxy. By the present time, a black hole and its host galaxy have grown in mass by factors of a million or more, roughly in lockstep. In this talk, Yale University's Meg Urry will first give several alternative descriptions of what a black hole is, then explain how recent multiwavelength surveys have allowed astronomers to take a census of black hole growth across cosmic time. Urry will conclude with the big picture: the evolution of the universe over the last 13 billion years, as indicated by computer simulations, and future prospects for observing black hole growth and mergers across the cosmos.

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Observers from UC-lbnl/UCD will use MOSFIRE on Keck 1, while on Keck 2, UCD observers will use DEIMOS. Sun set 06:54:00pm rise 05:45:00am
On Keck 1, we have UH observers using MOSFIRE. On Keck 2, we have UCD observers using DEIMOS. Sun set 06:54:00pm rise 05:46:00am
UH observers will use MOSFIRE on Keck 1, and UCSC/UCLA observers will use ESI on Keck 2 tonight. Sun set 06:53:00pm rise 05:46:00am
Keck 1 target of opportunity! Detected the afterglow of a rare short-duration gamma ray burst. Extragalactic explosion, caught in the act.
Does this monster have exotic populations of stars at its center? We'll investigate with LRIS tonight. (3/3)