Interstellar gas toward the Magellanic supernova remnants
Date
2017
Authors
Sano, H.
Fujii, K.
Yamane, Y.
Inaba, T.
Yoshiike, S.
Fukuda, T.
Voisin, F.
Rowell, G.
Fukui, Y.
Editors
Aharonian, F.
Hofmann, W.
Rieger, F.
Hofmann, W.
Rieger, F.
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Conference paper
Citation
AIP Conference Proceedings, 2017 / Aharonian, F., Hofmann, W., Rieger, F. (ed./s), vol.1792, pp.040038-1-040038-6
Statement of Responsibility
Hidetoshi Sano, Kosuke Fujii, Yumiko Yamane, Tetsuta Inaba, Satoshi
Yoshiike, Tatsuya Fukuda, Fabien Voisin, Gavin Rowell and Yasuo Fukui
Conference Name
6th International Meeting on High Energy Gamma-Ray Astronomy 2016 (11 Jul 2016 - 15 Jul 2016 : Heidelberg, Germany)
Abstract
We present new CO observations toward 25 supernova remnants (SNRs) residing with the Large Magellanic Cloud, including the TeV γ-ray sources N132D and 30 Doradus C. Our observations revealed that∼90% of the SNRs were detected by 12CO(J = 1–0) line emission with a 3σ level or higher. At least ten of them were shown to have CO clouds that have a good spatial correspondence with thermal/non-thermal X-rays; this indicates that shock-cloud interactions may have occurred. The molecular gases associated with N132D showed a high intensity ratio of 12CO J = 3–2 / 1–0 > 0.8, indicates that shock-heating occurred. We also found five molecular clouds and three Hi clouds associated with 30 Doradus C, which showed either complimentary or similar distributions to the non-thermal X-ray filaments in a 10 pc scale. The interstellar proton density of 30 Doradus C was estimated to be ∼ 60 cm−3, which corresponded to the total energy of the cosmic-ray protons being at least∼1.2×1050 erg.
School/Discipline
Dissertation Note
Provenance
Description
Conference: High energy gamma-ray astronomy: 6th International Meeting on High Energy Gamma-ray Astronomy.
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