Evolution Of The Small Dust Particles Within The Taurus Molecular Cloud

Details Evolution Of The Small Dust Particles Within The Taurus Molecular Cloud Evolution Of The Small Dust Particles Within The Taurus Molecular Cloud

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21332406n&link_type=abstract

American Astronomical Society, AAS Meeting #213, #324.06; Bulletin of the American Astronomical Society, Vol. 41, p.380

Astronomy and Astrophysics

Astronomy

Scientific paper

We use complete coverage (40 square degrees) of the Taurus Molecular Cloud with the Spitzer Space Telescope to characterize the average dust properties across the cloud. We confirm that FIR dust emission is a good tracer of the coldest and densest regions of the cloud. The average spectral energy distribution of the TMC is compared to that of the diffuse galactic medium to highlight an increase of BGs relative abundance as well as a decrease of their temperature within the cloud. We also take advantage of the unprecedented spatial resolution to analyze small spatial scale variations of dust properties. We focus on a filamentary structure and interpret the MIR-to-FIR colors as an evidence of relative abundances variations of small dust particles at the surface of the clouds

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