A Large-Scale, Low-Frequency Murchison Widefield Array Survey of Galactic H ii Regions between 260° </<340°
We have compiled a catalogue of H ii regions detected with the Murchison Widefield Array between 72 and 231 MHz. The multiple frequency bands provided by the Murchison Widefield Array allow us identify the characteristic spectrum generated by the thermal Bremsstrahlung process in H ii regions. We de...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal Article |
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Cambridge University Press
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/32788 |
| _version_ | 1848753760745029632 |
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| author | Hindson, L. Johnston-Hollitt, M. Hurley-Walker, Natasha Callingham, J. Su, H. Morgan, J. Bell, M. Bernardi, G. Bowman, J. Briggs, F. Cappallo, R. Deshpande, A. Dwarakanath, K. For, B. Gaensler, B. Greenhill, L. Hancock, P. Hazelton, B. Kapinska, A. Kaplan, D. Lenc, E. Lonsdale, C. Mckinley, B. McWhirter, S. Mitchell, D. Morales, M. Morgan, E. Oberoi, D. Offringa, A. Ord, S. Procopio, P. Prabu, T. Shankar, N. Srivani, K. Staveley-Smith, L. Subrahmanyan, R. Tingay, Steven Wayth, Randall Webster, R. Williams, A. Williams, C. Wu, C. Zheng, Q. |
| author_facet | Hindson, L. Johnston-Hollitt, M. Hurley-Walker, Natasha Callingham, J. Su, H. Morgan, J. Bell, M. Bernardi, G. Bowman, J. Briggs, F. Cappallo, R. Deshpande, A. Dwarakanath, K. For, B. Gaensler, B. Greenhill, L. Hancock, P. Hazelton, B. Kapinska, A. Kaplan, D. Lenc, E. Lonsdale, C. Mckinley, B. McWhirter, S. Mitchell, D. Morales, M. Morgan, E. Oberoi, D. Offringa, A. Ord, S. Procopio, P. Prabu, T. Shankar, N. Srivani, K. Staveley-Smith, L. Subrahmanyan, R. Tingay, Steven Wayth, Randall Webster, R. Williams, A. Williams, C. Wu, C. Zheng, Q. |
| author_sort | Hindson, L. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We have compiled a catalogue of H ii regions detected with the Murchison Widefield Array between 72 and 231 MHz. The multiple frequency bands provided by the Murchison Widefield Array allow us identify the characteristic spectrum generated by the thermal Bremsstrahlung process in H ii regions. We detect 306 H ii regions between 260°< / < 340° and report on the positions, sizes, peak, integrated flux density, and spectral indices of these H ii regions. By identifying the point at which H ii regions transition from the optically thin to thick regime, we derive the physical properties including the electron density, ionised gas mass, and ionising photon flux, towards 61 H ii regions. This catalogue of H ii regions represents the most extensive and uniform low frequency survey of H ii regions in the Galaxy to date. |
| first_indexed | 2025-11-14T08:29:38Z |
| format | Journal Article |
| id | curtin-20.500.11937-32788 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:29:38Z |
| publishDate | 2016 |
| publisher | Cambridge University Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-327882017-09-13T15:25:36Z A Large-Scale, Low-Frequency Murchison Widefield Array Survey of Galactic H ii Regions between 260° </<340° Hindson, L. Johnston-Hollitt, M. Hurley-Walker, Natasha Callingham, J. Su, H. Morgan, J. Bell, M. Bernardi, G. Bowman, J. Briggs, F. Cappallo, R. Deshpande, A. Dwarakanath, K. For, B. Gaensler, B. Greenhill, L. Hancock, P. Hazelton, B. Kapinska, A. Kaplan, D. Lenc, E. Lonsdale, C. Mckinley, B. McWhirter, S. Mitchell, D. Morales, M. Morgan, E. Oberoi, D. Offringa, A. Ord, S. Procopio, P. Prabu, T. Shankar, N. Srivani, K. Staveley-Smith, L. Subrahmanyan, R. Tingay, Steven Wayth, Randall Webster, R. Williams, A. Williams, C. Wu, C. Zheng, Q. We have compiled a catalogue of H ii regions detected with the Murchison Widefield Array between 72 and 231 MHz. The multiple frequency bands provided by the Murchison Widefield Array allow us identify the characteristic spectrum generated by the thermal Bremsstrahlung process in H ii regions. We detect 306 H ii regions between 260°< / < 340° and report on the positions, sizes, peak, integrated flux density, and spectral indices of these H ii regions. By identifying the point at which H ii regions transition from the optically thin to thick regime, we derive the physical properties including the electron density, ionised gas mass, and ionising photon flux, towards 61 H ii regions. This catalogue of H ii regions represents the most extensive and uniform low frequency survey of H ii regions in the Galaxy to date. 2016 Journal Article http://hdl.handle.net/20.500.11937/32788 10.1017/pasa.2016.19 Cambridge University Press fulltext |
| spellingShingle | Hindson, L. Johnston-Hollitt, M. Hurley-Walker, Natasha Callingham, J. Su, H. Morgan, J. Bell, M. Bernardi, G. Bowman, J. Briggs, F. Cappallo, R. Deshpande, A. Dwarakanath, K. For, B. Gaensler, B. Greenhill, L. Hancock, P. Hazelton, B. Kapinska, A. Kaplan, D. Lenc, E. Lonsdale, C. Mckinley, B. McWhirter, S. Mitchell, D. Morales, M. Morgan, E. Oberoi, D. Offringa, A. Ord, S. Procopio, P. Prabu, T. Shankar, N. Srivani, K. Staveley-Smith, L. Subrahmanyan, R. Tingay, Steven Wayth, Randall Webster, R. Williams, A. Williams, C. Wu, C. Zheng, Q. A Large-Scale, Low-Frequency Murchison Widefield Array Survey of Galactic H ii Regions between 260° </<340° |
| title | A Large-Scale, Low-Frequency Murchison Widefield Array Survey of Galactic H ii Regions between 260° </<340° |
| title_full | A Large-Scale, Low-Frequency Murchison Widefield Array Survey of Galactic H ii Regions between 260° </<340° |
| title_fullStr | A Large-Scale, Low-Frequency Murchison Widefield Array Survey of Galactic H ii Regions between 260° </<340° |
| title_full_unstemmed | A Large-Scale, Low-Frequency Murchison Widefield Array Survey of Galactic H ii Regions between 260° </<340° |
| title_short | A Large-Scale, Low-Frequency Murchison Widefield Array Survey of Galactic H ii Regions between 260° </<340° |
| title_sort | large-scale, low-frequency murchison widefield array survey of galactic h ii regions between 260° </<340° |
| url | http://hdl.handle.net/20.500.11937/32788 |