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TAPIR Seminar

Friday, May 11, 2018
2:00pm to 3:00pm
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Cahill 370
The Accretion Disk Around Milky Way's Galactic Center Black Hole
Elena Murchikova, Graduate Student, TAPIR, Caltech,

The Milky Way's own supermassive black hole SgrA* is our best hope for studying black holes' immediate environments and their growth.  There is a wide variety of accretion models, but we only know with certainty that the amount of the material around SgrA* is small and its accretion is low.  I will report the first detection of the 104 K ionized disk within a radius of 0.008 pc from the black hole in H30alpha (n=31 -> 30) recombination line of Hydrogen on ALMA.  I will discuss the disk properties, its dynamics and how it will help improve our understanding of black hole accretion.  I will also talk about the close flyby of the S2 star by the Galactic Center happening right now and what it will teach us about the Galactic Center environment.

For more information, please contact JoAnn Boyd by phone at 4280 or by email at [email protected].