The Murchison Widefield Array Commissioning Survey: A Low-Frequency Catalogue of 14 110 Compact Radio Sources over 6 100 Square Degrees
We present the results of an approximately 6 100 deg2 104–196 MHz radio sky survey performed with the Murchison Widefield Array during instrument commissioning between 2012 September and 2012 December: theMWACS. The data were taken as meridian drift scans with two different 32-antenna sub-arrays tha...
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| Format: | Journal Article |
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Cambridge University Press
2014
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| Online Access: | http://hdl.handle.net/20.500.11937/28870 |
| _version_ | 1848752651600134144 |
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| author | Hurley-Walker, Natasha Morgan, John Wayth, Randall Hancock, Paul Bell, M. BERNARDI, G. Bhat, Ramesh Briggs, F. Deshpande, A. Ewall-Wice, A. Feng, L. Hazelton, B. Hindson, L. Jacobs, D. KAPLAN, D. Kudryavtseva, Nadia Lenc, E. McKinley, B. Mitchell, D. Pindor, B. Procopio, P. Oberoi, D. Offringa, A. Ord, Stephen Riding, J. Bowman, J. Cappallo, R. Corey, B. Emrich, David Gaensler, B. Goeke, R. Greenhill, L. Hewitt, J. Johnston-Hollitt, M. Kasper, J. Kratzenberg, E. Lonsdale, C. Lynch, Mervyn McWhirter, R. Morales, M. Morgan, E. Prabu, T. Rogers, A. Roshi, A. Shankar, U. Srivani, K. Subrahmanyan, R. Tingay, Steven Waterson, Mark Webster, R. Whitney, A. Williams, Andrew Williams, C. |
| author_facet | Hurley-Walker, Natasha Morgan, John Wayth, Randall Hancock, Paul Bell, M. BERNARDI, G. Bhat, Ramesh Briggs, F. Deshpande, A. Ewall-Wice, A. Feng, L. Hazelton, B. Hindson, L. Jacobs, D. KAPLAN, D. Kudryavtseva, Nadia Lenc, E. McKinley, B. Mitchell, D. Pindor, B. Procopio, P. Oberoi, D. Offringa, A. Ord, Stephen Riding, J. Bowman, J. Cappallo, R. Corey, B. Emrich, David Gaensler, B. Goeke, R. Greenhill, L. Hewitt, J. Johnston-Hollitt, M. Kasper, J. Kratzenberg, E. Lonsdale, C. Lynch, Mervyn McWhirter, R. Morales, M. Morgan, E. Prabu, T. Rogers, A. Roshi, A. Shankar, U. Srivani, K. Subrahmanyan, R. Tingay, Steven Waterson, Mark Webster, R. Whitney, A. Williams, Andrew Williams, C. |
| author_sort | Hurley-Walker, Natasha |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We present the results of an approximately 6 100 deg2 104–196 MHz radio sky survey performed with the Murchison Widefield Array during instrument commissioning between 2012 September and 2012 December: theMWACS. The data were taken as meridian drift scans with two different 32-antenna sub-arrays that were available during the commissioning period. The survey covers approximately 20.5 h< RA < 8.5 h, −58◦ < Dec < −14◦over three frequency bands centredon 119, 150 and 180 MHz, with image resolutions of 6–3 arcmin. The catalogue has 3 arcmin angular resolution and a typical noise level of 40 mJy beam−1, with reduced sensitivity near the field boundaries and bright sources. We describe the data reduction strategy, based upon mosaicked snapshots, flux density calibration, and source-finding method. We present a catalogue of flux density and spectral index measurements for 14 110 sources, extracted from the mosaic, 1 247 of which are sub-components of complexes of sources. |
| first_indexed | 2025-11-14T08:12:01Z |
| format | Journal Article |
| id | curtin-20.500.11937-28870 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:12:01Z |
| publishDate | 2014 |
| publisher | Cambridge University Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-288702017-09-13T15:18:38Z The Murchison Widefield Array Commissioning Survey: A Low-Frequency Catalogue of 14 110 Compact Radio Sources over 6 100 Square Degrees Hurley-Walker, Natasha Morgan, John Wayth, Randall Hancock, Paul Bell, M. BERNARDI, G. Bhat, Ramesh Briggs, F. Deshpande, A. Ewall-Wice, A. Feng, L. Hazelton, B. Hindson, L. Jacobs, D. KAPLAN, D. Kudryavtseva, Nadia Lenc, E. McKinley, B. Mitchell, D. Pindor, B. Procopio, P. Oberoi, D. Offringa, A. Ord, Stephen Riding, J. Bowman, J. Cappallo, R. Corey, B. Emrich, David Gaensler, B. Goeke, R. Greenhill, L. Hewitt, J. Johnston-Hollitt, M. Kasper, J. Kratzenberg, E. Lonsdale, C. Lynch, Mervyn McWhirter, R. Morales, M. Morgan, E. Prabu, T. Rogers, A. Roshi, A. Shankar, U. Srivani, K. Subrahmanyan, R. Tingay, Steven Waterson, Mark Webster, R. Whitney, A. Williams, Andrew Williams, C. radio continuum: general surveys techniques: interferometric We present the results of an approximately 6 100 deg2 104–196 MHz radio sky survey performed with the Murchison Widefield Array during instrument commissioning between 2012 September and 2012 December: theMWACS. The data were taken as meridian drift scans with two different 32-antenna sub-arrays that were available during the commissioning period. The survey covers approximately 20.5 h< RA < 8.5 h, −58◦ < Dec < −14◦over three frequency bands centredon 119, 150 and 180 MHz, with image resolutions of 6–3 arcmin. The catalogue has 3 arcmin angular resolution and a typical noise level of 40 mJy beam−1, with reduced sensitivity near the field boundaries and bright sources. We describe the data reduction strategy, based upon mosaicked snapshots, flux density calibration, and source-finding method. We present a catalogue of flux density and spectral index measurements for 14 110 sources, extracted from the mosaic, 1 247 of which are sub-components of complexes of sources. 2014 Journal Article http://hdl.handle.net/20.500.11937/28870 10.1017/pasa.2014.40 Cambridge University Press fulltext |
| spellingShingle | radio continuum: general surveys techniques: interferometric Hurley-Walker, Natasha Morgan, John Wayth, Randall Hancock, Paul Bell, M. BERNARDI, G. Bhat, Ramesh Briggs, F. Deshpande, A. Ewall-Wice, A. Feng, L. Hazelton, B. Hindson, L. Jacobs, D. KAPLAN, D. Kudryavtseva, Nadia Lenc, E. McKinley, B. Mitchell, D. Pindor, B. Procopio, P. Oberoi, D. Offringa, A. Ord, Stephen Riding, J. Bowman, J. Cappallo, R. Corey, B. Emrich, David Gaensler, B. Goeke, R. Greenhill, L. Hewitt, J. Johnston-Hollitt, M. Kasper, J. Kratzenberg, E. Lonsdale, C. Lynch, Mervyn McWhirter, R. Morales, M. Morgan, E. Prabu, T. Rogers, A. Roshi, A. Shankar, U. Srivani, K. Subrahmanyan, R. Tingay, Steven Waterson, Mark Webster, R. Whitney, A. Williams, Andrew Williams, C. The Murchison Widefield Array Commissioning Survey: A Low-Frequency Catalogue of 14 110 Compact Radio Sources over 6 100 Square Degrees |
| title | The Murchison Widefield Array Commissioning Survey: A Low-Frequency Catalogue of 14 110 Compact Radio Sources over 6 100 Square Degrees |
| title_full | The Murchison Widefield Array Commissioning Survey: A Low-Frequency Catalogue of 14 110 Compact Radio Sources over 6 100 Square Degrees |
| title_fullStr | The Murchison Widefield Array Commissioning Survey: A Low-Frequency Catalogue of 14 110 Compact Radio Sources over 6 100 Square Degrees |
| title_full_unstemmed | The Murchison Widefield Array Commissioning Survey: A Low-Frequency Catalogue of 14 110 Compact Radio Sources over 6 100 Square Degrees |
| title_short | The Murchison Widefield Array Commissioning Survey: A Low-Frequency Catalogue of 14 110 Compact Radio Sources over 6 100 Square Degrees |
| title_sort | murchison widefield array commissioning survey: a low-frequency catalogue of 14 110 compact radio sources over 6 100 square degrees |
| topic | radio continuum: general surveys techniques: interferometric |
| url | http://hdl.handle.net/20.500.11937/28870 |