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SUMMARY:Black hole accretion in the TDAMM Era - Erin Kara (MIT)
DTSTART:20240606T150000Z
DTEND:20240606T160000Z
UID:TALK216580@talks.cam.ac.uk
CONTACT:107123
DESCRIPTION:Most of the power from an Active Galactic Nucleus is released 
 close to the black hole\, and thus studying accretion at event horizon sca
 les—at the intersection of inflow and outflow—is essential for underst
 anding how much matter accretes and grows the black hole vs. how much matt
 er is ejected\, thus effecting the black hole’s large-scale environments
 . In the past decade\, we have had a breakthrough in how we probe the inne
 r accretion flow\, through the discovery of X-ray Reverberation Mapping\, 
 where X-rays produced close to the black hole reverberate off inflowing ga
 s. By measuring reverberation time delays\, we can quantify the effects of
  strongly curved space time and measure black hole spin\, which is key for
  understanding how efficiently energy can be tapped from the accretion pro
 cess. In this talk\, I will give an overview of this field\, and will show
  how extending these spectral-timing techniques to extreme\, transient (an
 d possibly multi-messenger) accretion events like Tidal Disruption Events 
 and Quasi Periodic Eruptions can help us understand the growth and impact 
 of black holes in galactic centers.
LOCATION:Hoyle Lecture Theatre\, Institute of Astronomy
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