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Title: SPITZER OBSERVATIONS OF DUST DESTRUCTION IN THE PUPPIS A SUPERNOVA REMNANT

Abstract

The interaction of the Puppis A supernova remnant (SNR) with a neighboring molecular cloud provides a unique opportunity to measure the amount of grain destruction in an SNR shock. Spitzer Space Telescope MIPS imaging of the entire SNR at 24, 70, and 160 {mu}m shows an extremely good correlation with X-ray emission, indicating that the SNR's IR radiation is dominated by the thermal emission of swept-up interstellar dust, collisionally heated by the hot shocked gas. Spitzer IRS spectral observations targeted both the Bright Eastern Knot (BEK) of the SNR where a small cloud has been engulfed by the supernova blast wave and outlying portions of the associated molecular cloud that are yet to be hit by the shock front. Modeling the spectra from both regions reveals the composition and the grain size distribution of the interstellar dust, both in front of and behind the SNR shock front. The comparison shows that the ubiquitous polycyclic aromatic hydrocarbons of the interstellar medium are destroyed within the BEK, along with nearly 25% of the mass of graphite and silicate dust grains.

Authors:
 [1];  [2]; ;  [3]; ;  [4];  [5];  [6]
+ Show Author Affiliations
  1. CRESST, University of Maryland-Baltimore County, Baltimore, MD 21250 (United States)
  2. NASA Goddard Space Flight Center, Code 665, Greenbelt, MD 20771 (United States)
  3. Henry A. Rowland Department of Physics and Astronomy, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218 (United States)
  4. Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States)
  5. NASA Goddard Space Flight Center, Code 662, Greenbelt, MD 20771 (United States)
  6. Spitzer Science Center, MS 220-6, California Institute of Technology, Pasadena, CA 91125 (United States)
Publication Date:
OSTI Identifier:
21474411
Resource Type:
Journal Article
Journal Name:
Astrophysical Journal
Additional Journal Information:
Journal Volume: 725; Journal Issue: 1; Other Information: DOI: 10.1088/0004-637X/725/1/585; Journal ID: ISSN 0004-637X
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ASTROPHYSICS; DUSTS; GRAIN SIZE; INFRARED RADIATION; PHOTON EMISSION; POLYCYCLIC AROMATIC HYDROCARBONS; SUPERNOVA REMNANTS; TELESCOPES; X RADIATION; AROMATICS; COSMIC RADIO SOURCES; ELECTROMAGNETIC RADIATION; EMISSION; HYDROCARBONS; IONIZING RADIATIONS; MICROSTRUCTURE; ORGANIC COMPOUNDS; PHYSICS; RADIATIONS; SIZE

Citation Formats

Arendt, Richard G, Dwek, Eli, Blair, William P, Hwang, Una, Ghavamian, Parviz, Long, Knox S, Petre, Robert, Rho, Jeonghee, and Winkler, P. Frank, E-mail: Richard.G.Arendt@nasa.go. SPITZER OBSERVATIONS OF DUST DESTRUCTION IN THE PUPPIS A SUPERNOVA REMNANT. United States: N. p., 2010. Web. doi:10.1088/0004-637X/725/1/585.
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Arendt, Richard G, Dwek, Eli, Blair, William P, Hwang, Una, Ghavamian, Parviz, Long, Knox S, Petre, Robert, Rho, Jeonghee, & Winkler, P. Frank, E-mail: Richard.G.Arendt@nasa.go. SPITZER OBSERVATIONS OF DUST DESTRUCTION IN THE PUPPIS A SUPERNOVA REMNANT. United States. https://doi.org/10.1088/0004-637X/725/1/585
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Arendt, Richard G, Dwek, Eli, Blair, William P, Hwang, Una, Ghavamian, Parviz, Long, Knox S, Petre, Robert, Rho, Jeonghee, and Winkler, P. Frank, E-mail: Richard.G.Arendt@nasa.go. 2010. "SPITZER OBSERVATIONS OF DUST DESTRUCTION IN THE PUPPIS A SUPERNOVA REMNANT". United States. https://doi.org/10.1088/0004-637X/725/1/585.
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@article{osti_21474411,
title = {SPITZER OBSERVATIONS OF DUST DESTRUCTION IN THE PUPPIS A SUPERNOVA REMNANT},
author = {Arendt, Richard G and Dwek, Eli and Blair, William P and Hwang, Una and Ghavamian, Parviz and Long, Knox S and Petre, Robert and Rho, Jeonghee and Winkler, P. Frank, E-mail: Richard.G.Arendt@nasa.go},
abstractNote = {The interaction of the Puppis A supernova remnant (SNR) with a neighboring molecular cloud provides a unique opportunity to measure the amount of grain destruction in an SNR shock. Spitzer Space Telescope MIPS imaging of the entire SNR at 24, 70, and 160 {mu}m shows an extremely good correlation with X-ray emission, indicating that the SNR's IR radiation is dominated by the thermal emission of swept-up interstellar dust, collisionally heated by the hot shocked gas. Spitzer IRS spectral observations targeted both the Bright Eastern Knot (BEK) of the SNR where a small cloud has been engulfed by the supernova blast wave and outlying portions of the associated molecular cloud that are yet to be hit by the shock front. Modeling the spectra from both regions reveals the composition and the grain size distribution of the interstellar dust, both in front of and behind the SNR shock front. The comparison shows that the ubiquitous polycyclic aromatic hydrocarbons of the interstellar medium are destroyed within the BEK, along with nearly 25% of the mass of graphite and silicate dust grains.},
doi = {10.1088/0004-637X/725/1/585},
url = {https://www.osti.gov/biblio/21474411}, journal = {Astrophysical Journal},
issn = {0004-637X},
number = 1,
volume = 725,
place = {United States},
year = {Fri Dec 10 00:00:00 EST 2010},
month = {Fri Dec 10 00:00:00 EST 2010}
}
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Journal Article:
https://doi.org/10.1088/0004-637X/725/1/585
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