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Amy Reines (Montana State University)

The Origin of Supermassive Black Holes
Wann Am 22.05.2019 von 13:00 bis 14:00
Was
  • Kolloquium
Wo SH Hörsaal
Termin übernehmen vCal / iCal

The origin of supermassive black holes remains a major outstanding issue in modern astrophysics.  These monster black holes reside  in the nuclei of essentially every massive galaxy and power the most luminous quasars at the edge of the observable Universe.  However,  directly observing the first “seed” black holes in the early Universe - that can eventually grow to upwards of a billion solar masses - is not  feasible with current telescopes.  Present-day dwarf galaxies, on the other hand, are within observational reach and offer another avenue  to learn about black hole seeds since low-mass galaxies can host relatively pristine black holes.  In this talk, I will highlight some of my  achievements in this field that have taken us from a few rare examples to large systematically-assembled samples of dwarf galaxies  hosting nuclear black holes.  I will also discuss how my work has implications for directly detecting black hole activity in the first galaxies  at high redshift.  Finally, I will describe some of my future plans to probe the origin of supermassive black holes with dwarf galaxies, and  provide the much needed observational constraints on the otherwise theory-dominated work on the formation of the first black hole seeds.