Spitzer Imaging and Spectroscopy of the XA Region in the Cygnus Loop Supernova Remnant

Details Spitzer Imaging and Spectroscopy of the XA Region in the Cygnus Loop Supernova Remnant Spitzer Imaging and Spectroscopy of the XA Region in the Cygnus Loop Supernova Remnant

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21725622s&link_type=abstract

American Astronomical Society, AAS Meeting #217, #256.22; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

Spitzer MIPS 24mu-m and 70mu-m images and IRS high-resolution spectra of the XA region in the Cygnus Loop supernova remnant are presented. Many collisionally excited infrared lines are seen in the spectrum of an optically bright knot in the post-shock region. In contrast, a spectrum obtained at the shock front contains only a few high ionization lines. The infrared line fluxes, along with previously obtained far-ultraviolet line fluxes, are used to obtain the Neon to Oxygen abundance ratio in the shocked gas. The fluxes in the two MIPS images are corrected for contributions from lines and their ratio is used to characterize the dust emission and dust destruction in the shocked region.

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