Dust Properties in Intermediate Velocity Cloud G86.0+38.3

Details Dust Properties in Intermediate Velocity Cloud G86.0+38.3 Dust Properties in Intermediate Velocity Cloud G86.0+38.3

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...21111604v&link_type=abstract

American Astronomical Society, AAS Meeting #211, #116.04; Bulletin of the American Astronomical Society, Vol. 39, p.945

Astronomy and Astrophysics

Astronomy

Scientific paper

Intermediate velocity clouds (IVCs), located above the Galactic plane with a velocity 50 km/s from the local standard of rest, are believed to be part of a Galactic circulation. We are attempting to understand the turbulent history of these clouds by studying the unusual properties of their dust. In IVC G86.0+38.3 the dust-to-gas ratios at 60 and 100 microns suggest a shift in the grain size distribution toward smaller grains. New submillimeter maps at 250, 350, and 500 microns with the Balloon-borne Large Aperture Submillimeter Telescope (BLAST) allow us to fit the SED near the peak of the thermal dust emission from larger grains, determining the temperature. The temperature allows us to assess the interstellar radiation field in which the IVC is immersed.

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