Spitzer MIPS Imaging Of The Cygnus Loop: Dust Destruction In A Non-radiative Shock

Details Spitzer MIPS Imaging Of The Cygnus Loop: Dust Destruction In A Non-radiative Shock Spitzer MIPS Imaging Of The Cygnus Loop: Dust Destruction In A Non-radiative Shock

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21341205s&link_type=abstract

American Astronomical Society, AAS Meeting #213, #412.05; Bulletin of the American Astronomical Society, Vol. 41, p.218

Astronomy and Astrophysics

Astronomy

Scientific paper

We present Spitzer Space Telescope MIPS 24mu and 70mu images of a non-radiative shock in the north-eastern limb of the Cygnus Loop supernova remnant. The emission, due to heated dust, arises in the post-shock region and is spatially resolved in these images. The variation of the 24mu to 70mu flux ratio with distance behind the primary shock front (defined by its optical Balmer line emission) allows us to characterize the dust destruction as a function of position. Models of the dust processing, constrained by both infrared data and X-ray data from Chandra, are used to infer the dust temperature, the dust mass and the dust-to-gas ratio behind the shock.
We acknowledge support from JPL award 1278412 to the University of California Berkeley, Space Sciences Laboratory and North Carolina State University. Support from the SOFIA Science Center/USRA is also acknowledged.

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