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SUMMARY:Diagnosing feedback with the Lyman-alpha forest at z~0.1 - James B
 olton (Nottingham)
DTSTART:20170707T103000Z
DTEND:20170707T113000Z
UID:TALK72967@talks.cam.ac.uk
CONTACT:Martin Haehnelt
DESCRIPTION:I will introduce a new set of state-of-the-art hydrodynamical 
 simulations of the intergalactic medium -- the Sherwood simulation suite -
 - and compare them to a wide variety of Lyman-alpha forest observations ob
 tained with ground and space based observatories.  While the agreement bet
 ween observational data and theory is excellent at z>2\, significant diffe
 rences remain at lower redshift\, particularly for the Lyman-alpha forest 
 at  z~0.1 observed using the Cosmic Origins Spectrograph (COS) on the HST.
   I shall discuss the nature of this discrepancy\, what it may imply about
  galactic feedback in the low redshift Universe\, and advance some possibl
 e explanations for its resolution.
LOCATION:Kavli LMR\, IoA
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