Computer Science – Performance
Scientific paper
May 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21620002g&link_type=abstract
American Astronomical Society, AAS Meeting #216, #200.02; Bulletin of the American Astronomical Society, Vol. 41, p.843
Computer Science
Performance
Scientific paper
The Herschel Space Observatory is providing an unprecedented far-infrared-through-submillimeter view of galaxy formation and evolution over the history of the Universe. With broadband wavelength coverage from 60 µm to 600 µm (60 - 200 µm Photodetector Array Camera and Spectrometer and 200 - 600 µm Spectral and Photometric Imaging Receiver), Herschel is sensitive to thermal emission from dust, thereby revealing obscured star formation and nuclear activity. This waveband spans the range in which the cosmic far-infrared background peaks. PACS and SPIRE Performance Verification Phase and Science Demonstration Phase observations have been completed and routine observations are underway with excellent sensitivity.
Three Herschel key projects - HerMES, the Herschel Multitiered Extragalactic Survey, PEP, the PACS Evolutionary Probe, and Herschel-ATLAS - are designed to characterize far-infrared galaxy populations over broad ranges of redshift, luminosity, and environment with various field sizes and depths. Extremely deep observations of fractions of a square degree, with depths to the submillimeter confusion limit, characterize faint galaxies that contribute the bulk of the far-infrared and submillimeter extragalactic background. Wide fields, totaling hundreds of square degrees, find rare, extremely luminous galaxies, probe large-scale structure and the relation of far-infrared galaxies to dark matter, and provide synergy with the Planck Surveyor.
A summary of initial results from the Science Demonstration Phase will be presented, indicating the distant-galaxy science attainable with Herschel. Preliminary topics to be touched on include: status of the surveys; measurements of source confusion noise levels; galaxy number counts and colors; galaxy identifications at other wavelengths; and early implications for galaxy models.
The Herschel Space Observatory is funded by ESA with contributions from NASA.
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