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SUMMARY:Far-IR/Submm Missions of the Future: Scientific and Technology Cha
 llenges - Dr Wayne Holland\, Royal Observatory\, Edinburgh
DTSTART:20081015T130000Z
DTEND:20081015T140000Z
UID:TALK14587@talks.cam.ac.uk
CONTACT:Judith Moss
DESCRIPTION:Studying astrophysics in the far-infrared and submillimetre al
 lows us to probe the earliest phases of the formation of galaxies\, stars 
 and planets. The past decade has seen a large investment by the UK and\nas
 tronomers are poised to reap the rewards of new facilities (such as Hersch
 el\, SCUBA-2\, and ALMA) over the next several years. However\, there rema
 in both crucial wavebands and capabilities that are not addressed by\nthe 
 current programme. These include the so-called "far-infrared gap" and the 
 ability to carry out very large area surveys in the submillimetre to depth
 s well below current confusion limits. In this talk\, after a brief review
  of the current and near-term status\, I will describe the scientific goal
 s of new proposed telescopes that are designed to address these missing li
 nks. These include large\, single-aperture telescopes operating from ultra
  dry sites on the ground (e.g. CCAT)\, cooled space satellites in the mid-
 far infrared (SPICA)\, and more speculative ventures such as a 10-m class 
 far-IR\ntelescope (SAFIR) and multi-element interferometer (FIRI) operatin
 g in space. Key to any new telescope or mission is the development of tech
 nologies to ensure that state-of-the-art instrumentation is employed on\ns
 uch facilities. The UK has considerable heritage in this areas and I will 
 also discuss some of the key challenges of the next generation of detector
 s and their cryogenic requirements.
LOCATION:Ryle Seminar Room\, Cavendish Laboratory
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