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BEGIN:VEVENT
DTSTAMP:20260630T014109Z
DTSTART;VALUE=DATE-TIME:20110309T140000
DTEND;VALUE=DATE-TIME:20110309T150000
SUMMARY:Astronomy Seminar
TZID:Europe/London
UID:20110309-094d43ed2c9d4eda012c9ddbccd90854@warwick.ac.uk
CREATED:20101130T173656Z
DESCRIPTION:Timothy Davis (Oxford University) Title: Red but not dead! Mo
 lecular gas in early-type galaxies Abstract: Over the past few years\, e
 arly-type galaxies (ETGs) have shed their red-and-dead moniker\, thanks 
 to the discovery that many host low-level residual star formation. As pa
 rt of the Atlas3D project we are conducting a complete\, volume limited 
 survey of the stellar properties and ISM of 260 local early-type galaxie
 s (with the SAURON IFU\, WSRT\, IRAM-30m telescope and CARMA). With this
  data we are attempting to understand the origin of the ISM in these gal
 axies\, and study its distribution\, kinematics and star formation prope
 rties. I will outline the major results of this survey\, and explain why
  the Hubble tuning fork view of ETGs should be discarded. I will also di
 scuss the ISM in these systems (Which until about 10 years ago was thoug
 ht not to exist!) We detect molecular gas in approximately 22% of early-
 type galaxies in the local volume\, and this detection rate is independe
 nt of galaxy luminosity and environment\, but does depend on the galaxy 
 kinematics. Morphologically this molecular gas is most usually distribut
 ed in relaxed central discs\, polar structures and rings. The origin of 
 the molecular and ionised gas does however seem to depend strongly on en
 vironment\, with misaligned gas (indicative of externally acquired mater
 ial) being common in the field but almost completely absent in Virgo and
  group environments. I will discuss these results\, which imply that env
 ironment has a strong impact on the properties of ETGs\, and touch on im
 plications for the formation and evolution of red sequence galaxies.
LOCATION:
CATEGORIES:Astronomy Seminar
LAST-MODIFIED:20101130T173656Z
ORGANIZER;CN="":
END:VEVENT
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