CfA OIR Division Lunch Talks
Wednesday, February 27, 2013, 11:00 am, Pratt Conference Room

AKARI Far-Infrared All-Sky Survey Maps

Yasuo Doi (University of Tokyo)

We describe our new far-infrared all-sky survey image taken by the Japanese AKARI satellite. The survey covered 97% of the whole sky in four photometric bands, which cover continuously 50--180 micron with band central wavelengths and spatial resolutions of 65 micron (39"), 90 micron (60"), 140 micron (87"), and 160 micron (78"). All-sky images of the Galactic dust continuum emission enable astronomers to map the large-scale distribution of the diffuse ISM cirrus, to study its thermal dust temperature, emissivity and column density, and to measure the interaction of the Galactic radiation field and embedded objects with the surrounding ISM. In addition to the point source population of stars, protostars, star forming regions, and galaxies, the high Galactic latitude sky is shown to be covered with a diffuse filamentary-web of dusty emission that traces the potential sites of high latitude star formation. The far-infrared AKARI full-sky maps provide a rich new data set within which astronomers can investigate the distribution of interstellar matter and its connection to the star-formation activities.