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SUMMARY:Sackler Lecture\, Present and Future Far Infrared Extragalactic As
 tronomy: Herschel and Beyond - Matt Griffin\, Cardiff University
DTSTART:20111103T163000Z
DTEND:20111103T173000Z
UID:TALK32440@talks.cam.ac.uk
CONTACT:Dr. Vasily Belokurov
DESCRIPTION:The far infrared and submillimetre spectral region is\ncritica
 l to the characterisation of the obscured Universe\, both\nin our own and 
 nearby galaxies and at high redshift. The Herschel\nSpace Observatory\, wh
 ich is currently operating\, has a passively\ncooled 3.5-m diameter telesc
 ope and three scientific instruments\nwhich are carrying out sensitive ima
 ging and spectroscopy at\nwavelengths between 55 and 671 microns.  I will 
 describe the\ndesign and  scientific capabilities of Herschel and review s
 ome\nof its early results.\n\nFor a comprehensive understanding of the int
 erstellar medium in\ngalaxies over cosmic time\, and the relationship betw
 een AGN and\ntheir host galaxies\, future space-borne observations will be
 \nneeded with much improved sensitivity and angular resolution\nin the far
  infrared.  The Japanese-led Space Infrared telescope\nfor Cosmology and A
 strophysics (SPICA) will be the next major\nfar infrared space astronomy m
 ission.  It will carry a 3.2-m\ntelescope cooled to ~ 6 K by mechanical co
 olers\, and a suite\nof instruments covering the 5 - 200 micron range.  Th
 e cold\naperture will lead to a huge increase in sensitivity over\ncurrent
  far infrared facilities.  SPICA's far infrared camera\nand spectrometer\,
  SAFARI\, will cover the wavelength range between\n30 and 200 microns with
  an observing speed orders of magnitude\nfaster than that achieved by Hers
 chel. I will outline how\nSPICA's capabilities will bring about a major ad
 vance in our\nability to investigate the extragalactic Universe.
LOCATION:Sackler Lecture Theatre\, IoA (tea at 4:00 pm)
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