NOAO >   Observing Info >   Approved Programs >   2009A-0359

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Proposal Information for 2009A-0359


PI: Dr. Jeonghee Rho, California Institute of Technology, rho@ipac.caltech.edu
Address: Spitzer Science Center, MS 220-6, Pasadena, CA 91125, USA

CoI: Morten Andersen, California Institute of Technology
CoI: Tom Jarrett, California Institute of Technology
CoI: William Reach, California Institute of Technology
CoI: John Hewitt, Northwestern U.

Title: Near-infrared Imaging of Spitzer Detected Supernova Remnants: Molecular hydrogen and Dust destruction

Abstract: We propose ISPI H_2 imaging and OSIRIS [Fe II] imaging and K-band spectroscopy towards 9 supernova remnants (SNRs)-Kes 17, Kes 20A, G311.5-0.3, RCW103, G344.7-0.1, G346.6-0.2, CTB 37A, G348.5-0.0 and G349.7+0.2- from which we recently identified mid-infrared emission using \it Spitzer/IRAC/GLIMPSE data. The IRAC sample emphasizes remnants interacting with relatively dense gas, for which most of the shock cooling occurs through molecular or ionic lines. We anticipate high metal abundances (e.g., Fe) and a high shock velocity from young SNRs. With the broad band \it Spitzer images, our understanding of the infrared emission from these SNRs is severely limited. We propose H_2 and [Fe II] imaging and spectroscopy to achieve the scientific goals: i) to map shocked H_2 emission to reveal distribution and structures of shocked gas, ii) to study the nature of excitation of H_2 lines, iii) to examine the metal abundances, metal enrichment from the SN, and dust destruction, and iv) to search for near-infrared synchrotron emission.


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NOAO >   Observing Info >   Approved Programs >   2009A-0359

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