FERMI-LAT OBSERVATIONS OF SUPERNOVA REMNANTS INTERACTING WITH MOLECULAR CLOUDS: W41, MSH 17-39, AND G337.7-0.1
We report the detection of γ-ray emission coincident with three supernova remnants (SNRs) using data from the Large Area Telescope on board the Fermi Gamma-ray Space Telescope. W41, G337.7-0.1, and MSH 17-39 are SNRs known to be interacting with molecular clouds, as evidenced by observations of hydr...
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| Format: | Article |
| Language: | en_US |
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IOP Publishing
2014
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| Online Access: | http://hdl.handle.net/1721.1/88438 https://orcid.org/0000-0002-3243-727X https://orcid.org/0000-0001-9285-5556 |
| _version_ | 1811079264624181248 |
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| author | Castro, Daniel Slane, Patrick Carlton, Ashley Figueroa-Feliciano, Enectali |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Castro, Daniel Slane, Patrick Carlton, Ashley Figueroa-Feliciano, Enectali |
| author_sort | Castro, Daniel |
| collection | MIT |
| description | We report the detection of γ-ray emission coincident with three supernova remnants (SNRs) using data from the Large Area Telescope on board the Fermi Gamma-ray Space Telescope. W41, G337.7-0.1, and MSH 17-39 are SNRs known to be interacting with molecular clouds, as evidenced by observations of hydroxyl (OH) maser emission at 1720 MHz in their directions and other observational information. SNR shocks are expected to be sites of cosmic-ray acceleration, and clouds of dense material can provide effective targets for production of γ-rays from π[superscript 0]-decay. The observations reveal unresolved sources in the direction of G337.7-0.1 and MSH 17-39 and an extended source coincident with W41. We model their broadband emission (radio to γ-ray) using a simple one-zone model, and after considering scenarios in which the MeV-TeV sources originate from either π[superscript 0]-decay or leptonic emission, we conclude that the γ-rays are most likely produced through the hadronic channel. |
| first_indexed | 2024-09-23T11:12:27Z |
| format | Article |
| id | mit-1721.1/88438 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T11:12:27Z |
| publishDate | 2014 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | mit-1721.1/884382022-09-27T17:51:01Z FERMI-LAT OBSERVATIONS OF SUPERNOVA REMNANTS INTERACTING WITH MOLECULAR CLOUDS: W41, MSH 17-39, AND G337.7-0.1 Castro, Daniel Slane, Patrick Carlton, Ashley Figueroa-Feliciano, Enectali Massachusetts Institute of Technology. Department of Physics MIT Kavli Institute for Astrophysics and Space Research Castro, Daniel Figueroa-Feliciano, Enectali We report the detection of γ-ray emission coincident with three supernova remnants (SNRs) using data from the Large Area Telescope on board the Fermi Gamma-ray Space Telescope. W41, G337.7-0.1, and MSH 17-39 are SNRs known to be interacting with molecular clouds, as evidenced by observations of hydroxyl (OH) maser emission at 1720 MHz in their directions and other observational information. SNR shocks are expected to be sites of cosmic-ray acceleration, and clouds of dense material can provide effective targets for production of γ-rays from π[superscript 0]-decay. The observations reveal unresolved sources in the direction of G337.7-0.1 and MSH 17-39 and an extended source coincident with W41. We model their broadband emission (radio to γ-ray) using a simple one-zone model, and after considering scenarios in which the MeV-TeV sources originate from either π[superscript 0]-decay or leptonic emission, we conclude that the γ-rays are most likely produced through the hadronic channel. United States. National Aeronautics and Space Administration (Fermi grant NNX10AP70G) Smithsonian Astrophysical Observatory (Contract SV3-73016) 2014-07-18T14:33:23Z 2014-07-18T14:33:23Z 2013-08 2013-04 Article http://purl.org/eprint/type/JournalArticle 0004-637X 1538-4357 http://hdl.handle.net/1721.1/88438 Castro, Daniel, Patrick Slane, Ashley Carlton, and Enectali Figueroa-Feliciano. “FERMI -LAT OBSERVATIONS OF SUPERNOVA REMNANTS INTERACTING WITH MOLECULAR CLOUDS: W41, MSH 17-3 9 , AND G337.7-0.1.” The Astrophysical Journal 774, no. 1 (September 1, 2013): 36. https://orcid.org/0000-0002-3243-727X https://orcid.org/0000-0001-9285-5556 en_US http://dx.doi.org/10.1088/0004-637x/774/1/36 The Astrophysical Journal Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf IOP Publishing arXiv |
| spellingShingle | Castro, Daniel Slane, Patrick Carlton, Ashley Figueroa-Feliciano, Enectali FERMI-LAT OBSERVATIONS OF SUPERNOVA REMNANTS INTERACTING WITH MOLECULAR CLOUDS: W41, MSH 17-39, AND G337.7-0.1 |
| title | FERMI-LAT OBSERVATIONS OF SUPERNOVA REMNANTS INTERACTING WITH MOLECULAR CLOUDS: W41, MSH 17-39, AND G337.7-0.1 |
| title_full | FERMI-LAT OBSERVATIONS OF SUPERNOVA REMNANTS INTERACTING WITH MOLECULAR CLOUDS: W41, MSH 17-39, AND G337.7-0.1 |
| title_fullStr | FERMI-LAT OBSERVATIONS OF SUPERNOVA REMNANTS INTERACTING WITH MOLECULAR CLOUDS: W41, MSH 17-39, AND G337.7-0.1 |
| title_full_unstemmed | FERMI-LAT OBSERVATIONS OF SUPERNOVA REMNANTS INTERACTING WITH MOLECULAR CLOUDS: W41, MSH 17-39, AND G337.7-0.1 |
| title_short | FERMI-LAT OBSERVATIONS OF SUPERNOVA REMNANTS INTERACTING WITH MOLECULAR CLOUDS: W41, MSH 17-39, AND G337.7-0.1 |
| title_sort | fermi lat observations of supernova remnants interacting with molecular clouds w41 msh 17 39 and g337 7 0 1 |
| url | http://hdl.handle.net/1721.1/88438 https://orcid.org/0000-0002-3243-727X https://orcid.org/0000-0001-9285-5556 |
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