A Spitzer Space Telescope Infrared Survey of Supernova Remnants in the Inner Galaxy

By W. Reach, J. Rho, A. Tappe, T. Pannuti, C. Brogan, E. Churchwell, M. Meade, B. Babler, R. Indebetouw, B. Whitney. 2005

215 citations recorded by the source corpus.

Using Infrared Array Camera (IRAC) images at 3.6, 4.5, 5.8, and 8 μm from the GLIMPSE Legacy science program on the Spitzer Space Telescope, we searched for infrared counterparts to the 95 known supernova remnants that are located within Galactic longitudes 65° > |l| > 10° and latitudes |b| < 1°. Eighteen infrared counterparts were detected. Many other supernova remnants could have significant infrared emission but are in portions of the Milky Way too confused to allow the separation of bright H II regions and pervasive mid-infrared emission from atomic and molecular clouds along the line of sight. Infrared emission from supernova remnants originates from synchrotron emission, shock-heated dust, atomic fine-structure lines, and molecular lines. The detected remnants are G11.2-0.3, Kes 69, G22.7-0.2, 3C 391, W44, 3C 396, 3C 397, W49B, G54.4-0.3, Kes 17, Kes 20A, RCW 103, G344.7-0.1, G346.6-0.2, CTB 37A, G348.5-0.0, and G349.7+0.2. The infrared colors suggest emission from molecular lines (nine remnants), fine-structure lines (three remnants), polycyclic aromatic hydrocarbons (four remnants), or a combination; some remnants feature multiple colors in different regions. None of the remnants are dominated by synchrotron radiation at mid-infrared wavelengths. The IRAC-detected sample emphasizes remnants interacting with relatively dense gas, for which most of the shock cooling occurs through molecular or ionic lines in the mid-infrared.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/6e8cead9d56d21a8065c2b303f76f8cf53a48013

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In Astronomy and Astrophysics

1. M. Povich
2. B. Whitney
3. R. Indebetouw
4. G. Rieke
5. E. Churchwell
6. J. Hinz
7. S. Stolovy
8. F. Yusef-Zadeh

In Nuclear and High Energy Physics

1. France.
2. E. Churchwell
3. A. Jones
4. Usa
5. R. Benjamin
6. D. Watson
7. Cnrs

Citations in the corpus

• STAR FORMATION IN THE CENTRAL 400 PC OF THE MILKY WAY: EVIDENCE FOR A POPULATION OF MASSIVE YOUNG STELLAR OBJECTS (2009, methodology): “Using this color selection criterion, a recent IRAC survey of the Galactic plane has identified a number of interacting supernova remnants showing excess emission at 4.5µm, indicating shocked, excited CO and H2 molecular line emission (Reach et al. 2006).”
• Polycyclic aromatic hydrocarbon processing in a hot gas (2009, background): “Reach et al. (2006) have identified four supernova remnants with IR colors that may indicate PAH emission.”
• A CLASS I AND CLASS II CH3OH MASER SURVEY OF EGOs FROM THE GLIMPSE SURVEY (2009, background): “1 of Reach et al. 2006) and contains molecular lines that may be shock-excited in protostellar outflows, including both the CO (v=1-0) bandhead and H 2 lines, most notably the v=0-0, S(9,10,11) transitions.”
• A CATALOG OF EXTENDED GREEN OBJECTS IN THE GLIMPSE SURVEY: A NEW SAMPLE OF MASSIVE YOUNG STELLAR OBJECT OUTFLOW CANDIDATES (2008, background): “The IRAC 4.5 µm band contains both H2 (v=0-0, S(9,10,11)) lines and CO (v=1-0) bandheads (c.f. Figure 1 of Reach et al. 2006).”