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UID:2e986c2d-4970-4fb0-8bcd-bb9b3f28ce45@nexttoyou
DTSTAMP:20261106T165346Z
DTSTART:20261113T170000Z
DTEND:20261113T180000Z
SUMMARY:YCIU Seminar with Meg Urry\, Yale Astronomy & Physics
LOCATION:Kline Tower 509\, 219 Prospect Street\, New Haven\, CT 06511
DESCRIPTION:Title: Accretion onto Black Holes: What We Learn from the Eddi
 ngton Ratio\n\nAbstract: Accretion onto black holes powers emission from 
 X-ray binaries (~10 solar mass BH) and the Active Galactic Nuclei (AGN) t
 hat lie at the centers of galaxies (~106-1010 solar mass BH). The black h
 oles themselves are quite similar\, apart from mass scale\, but in each c
 ase our understanding of accretion has been dominated by superficial issu
 es like geometry and wavelength-dependent absorption\, unrelated to the u
 nderlying accretion flow. After introducing this landscape\, I will show 
 that the most important diagnostic of accretion is the Eddington ratio\, 
 which is a normalized accretion rate (essentially the bolometric AGN lumi
 nosity divided by the black hole mass). Specifically\, I will present the
  first ever intrinsic distributions of Eddington ratios derived for both 
 obscured and unobscured AGN. Differences between these two Eddington Rati
 o Distribution Functions (ERDFs) offer clues about how accretion rate aff
 ects the structure and evolution of AGN.\n\nhttp://next-to-u.app/events/2
 e986c2d-4970-4fb0-8bcd-bb9b3f28ce45
URL:http://next-to-u.app/events/2e986c2d-4970-4fb0-8bcd-bb9b3f28ce45
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