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SUMMARY:Growing supermassive black holes with a little help from their fri
 ends - John Silverman (Kavli IPMU\, Japan)
DTSTART:20140610T153000Z
DTEND:20140610T163000Z
UID:TALK51972@talks.cam.ac.uk
CONTACT:David Titterington
DESCRIPTION:There has been a lack of understanding what physical mechanism
 s are responsible for the mass build-up of supermassive black holes with c
 osmic time. The challenge lies with determining whether local influences (
 in the vicinity of the black hole and unresolved with current observationa
 l facilities) are directly related to larger scale factors (external to th
 e host galaxy) such as galaxy mergers or a process related to the characte
 ristics of their dark matter halo.  Deep multi-wavelength surveys with lar
 ge spectroscopic efforts\, such as COSMOS\, now enable us to construct sta
 tistical galaxy and AGN samples up to z ~ 1 with environmental information
  to disentangle various factors relevant for triggering accretion.  We wil
 l demonstrate that a scale-dependent modulation of black hole growth is in
  effect with mergers playing a non-negligible role.  Our results are likel
 y indicative of the underlying role of the gas reservoir for fuelling AGN 
 activity and concurrent star formation in a global sense.\n
LOCATION:Sackler Lecture Theatre\, Institute of Astronomy
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