Interstellar gas towards CTB 37A and the TeV gamma-ray source HESS J1714−385
Observations of dense molecular gas towards the supernova remnants CTB 37A (G348.5+0.1) and G348.5−0.0 were carried out using the Mopra and Nanten2 radio telescopes. We present CO(2–1) and CS(1–0) emission maps of a region encompassing the CTB 37A TeV gamma-ray emission, HESS J1714−385, revealing re...
| Main Authors: | , , , , , , , , , , |
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| Format: | Journal Article |
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Oxford University Press
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/45946 |
| _version_ | 1848757425195188224 |
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| author | Maxted, N. Rowell, G. Dawson, B. Burton, M. Fukui, Y. Walsh, Andrew Kawamura, A. Horachi, H. Sano, H. Yoshiike, S. Fukuda, T. |
| author_facet | Maxted, N. Rowell, G. Dawson, B. Burton, M. Fukui, Y. Walsh, Andrew Kawamura, A. Horachi, H. Sano, H. Yoshiike, S. Fukuda, T. |
| author_sort | Maxted, N. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Observations of dense molecular gas towards the supernova remnants CTB 37A (G348.5+0.1) and G348.5−0.0 were carried out using the Mopra and Nanten2 radio telescopes. We present CO(2–1) and CS(1–0) emission maps of a region encompassing the CTB 37A TeV gamma-ray emission, HESS J1714−385, revealing regions of dense gas within associated molecular clouds. Some gas displays good overlap with gamma-ray emission, consistent with hadronic gamma-ray emission scenarios. Masses of gas towards the HESS J1714−385 TeV gamma-ray emission region were estimated, and were of the order of 103–104 M. In the case of a purely hadronic origin for the gamma-ray emission, the cosmic ray flux enhancement is ~80–1100 times the local solar value. This enhancement factor and other considerations allow a discussion of the age of CTB 37A, which is consistent with ~104 yr. |
| first_indexed | 2025-11-14T09:27:53Z |
| format | Journal Article |
| id | curtin-20.500.11937-45946 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:27:53Z |
| publishDate | 2013 |
| publisher | Oxford University Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-459462017-09-13T14:26:12Z Interstellar gas towards CTB 37A and the TeV gamma-ray source HESS J1714−385 Maxted, N. Rowell, G. Dawson, B. Burton, M. Fukui, Y. Walsh, Andrew Kawamura, A. Horachi, H. Sano, H. Yoshiike, S. Fukuda, T. supernovae: individual: CTB37A gamma-rays: ISM ISM: clouds cosmic rays molecular data Observations of dense molecular gas towards the supernova remnants CTB 37A (G348.5+0.1) and G348.5−0.0 were carried out using the Mopra and Nanten2 radio telescopes. We present CO(2–1) and CS(1–0) emission maps of a region encompassing the CTB 37A TeV gamma-ray emission, HESS J1714−385, revealing regions of dense gas within associated molecular clouds. Some gas displays good overlap with gamma-ray emission, consistent with hadronic gamma-ray emission scenarios. Masses of gas towards the HESS J1714−385 TeV gamma-ray emission region were estimated, and were of the order of 103–104 M. In the case of a purely hadronic origin for the gamma-ray emission, the cosmic ray flux enhancement is ~80–1100 times the local solar value. This enhancement factor and other considerations allow a discussion of the age of CTB 37A, which is consistent with ~104 yr. 2013 Journal Article http://hdl.handle.net/20.500.11937/45946 10.1093/mnras/stt1159 Oxford University Press fulltext |
| spellingShingle | supernovae: individual: CTB37A gamma-rays: ISM ISM: clouds cosmic rays molecular data Maxted, N. Rowell, G. Dawson, B. Burton, M. Fukui, Y. Walsh, Andrew Kawamura, A. Horachi, H. Sano, H. Yoshiike, S. Fukuda, T. Interstellar gas towards CTB 37A and the TeV gamma-ray source HESS J1714−385 |
| title | Interstellar gas towards CTB 37A and the TeV gamma-ray source HESS J1714−385 |
| title_full | Interstellar gas towards CTB 37A and the TeV gamma-ray source HESS J1714−385 |
| title_fullStr | Interstellar gas towards CTB 37A and the TeV gamma-ray source HESS J1714−385 |
| title_full_unstemmed | Interstellar gas towards CTB 37A and the TeV gamma-ray source HESS J1714−385 |
| title_short | Interstellar gas towards CTB 37A and the TeV gamma-ray source HESS J1714−385 |
| title_sort | interstellar gas towards ctb 37a and the tev gamma-ray source hess j1714−385 |
| topic | supernovae: individual: CTB37A gamma-rays: ISM ISM: clouds cosmic rays molecular data |
| url | http://hdl.handle.net/20.500.11937/45946 |