The Murchison Widefield Array: The Square Kilometre Array Precursor at Low Radio Frequencies
The Murchison Widefield Array (MWA) is one of three Square Kilometre Array Precursor telescopes and is located at the Murchison Radio-astronomy Observatory in the Murchison Shire of the mid-west of Western Australia, a location chosen for its extremely low levels of radio frequency interference. The...
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| Format: | Article |
| Language: | en_US |
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CSIRO Publishing
2014
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| Online Access: | http://hdl.handle.net/1721.1/88460 https://orcid.org/0000-0002-4117-570X https://orcid.org/0000-0001-7130-208X https://orcid.org/0000-0003-1941-7458 |
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| author | Goeke, Robert F. Lonsdale, Colin John Cappallo, Roger J. Corey, Brian E. Hewitt, Jacqueline N. Kincaid, Barton B. Kratzenberg, Eric W. McWhirter, Stephen R. Morgan, Edward H. Remillard, Ronald Alan Rogers, Alan E. E. Salah, J. E. Whitney, Alan R. Williams, Christopher Leigh |
| author2 | Haystack Observatory |
| author_facet | Haystack Observatory Goeke, Robert F. Lonsdale, Colin John Cappallo, Roger J. Corey, Brian E. Hewitt, Jacqueline N. Kincaid, Barton B. Kratzenberg, Eric W. McWhirter, Stephen R. Morgan, Edward H. Remillard, Ronald Alan Rogers, Alan E. E. Salah, J. E. Whitney, Alan R. Williams, Christopher Leigh |
| author_sort | Goeke, Robert F. |
| collection | MIT |
| description | The Murchison Widefield Array (MWA) is one of three Square Kilometre Array Precursor telescopes and is located at the Murchison Radio-astronomy Observatory in the Murchison Shire of the mid-west of Western Australia, a location chosen for its extremely low levels of radio frequency interference. The MWA operates at low radio frequencies, 80–300 MHz, with a processed bandwidth of 30.72 MHz for both linear polarisations, and consists of 128 aperture arrays (known as tiles) distributed over a ~3-km diameter area. Novel hybrid hardware/software correlation and a real-time imaging and calibration systems comprise the MWA signal processing backend. In this paper, the as-built MWA is described both at a system and sub-system level, the expected performance of the array is presented, and the science goals of the instrument are summarised. |
| first_indexed | 2024-09-23T17:02:01Z |
| format | Article |
| id | mit-1721.1/88460 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T17:02:01Z |
| publishDate | 2014 |
| publisher | CSIRO Publishing |
| record_format | dspace |
| spelling | mit-1721.1/884602022-10-03T09:54:37Z The Murchison Widefield Array: The Square Kilometre Array Precursor at Low Radio Frequencies Goeke, Robert F. Lonsdale, Colin John Cappallo, Roger J. Corey, Brian E. Hewitt, Jacqueline N. Kincaid, Barton B. Kratzenberg, Eric W. McWhirter, Stephen R. Morgan, Edward H. Remillard, Ronald Alan Rogers, Alan E. E. Salah, J. E. Whitney, Alan R. Williams, Christopher Leigh Haystack Observatory MIT Kavli Institute for Astrophysics and Space Research Goeke, Robert F. Lonsdale, Colin John Cappallo, Roger J. Corey, Brian E. Hewitt, Jacqueline N. Kincaid, Barton B. Kratzenberg, Eric W. McWhirter, Stephen R. Morgan, Edward H. Remillard, Ronald Alan Rogers, Alan E. E. Salah, J. E. Whitney, Alan R. Williams, Christopher Leigh The Murchison Widefield Array (MWA) is one of three Square Kilometre Array Precursor telescopes and is located at the Murchison Radio-astronomy Observatory in the Murchison Shire of the mid-west of Western Australia, a location chosen for its extremely low levels of radio frequency interference. The MWA operates at low radio frequencies, 80–300 MHz, with a processed bandwidth of 30.72 MHz for both linear polarisations, and consists of 128 aperture arrays (known as tiles) distributed over a ~3-km diameter area. Novel hybrid hardware/software correlation and a real-time imaging and calibration systems comprise the MWA signal processing backend. In this paper, the as-built MWA is described both at a system and sub-system level, the expected performance of the array is presented, and the science goals of the instrument are summarised. National Science Foundation (U.S.) (Grant AST CAREER-0847753) National Science Foundation (U.S.) (Grant AST-0457585) National Science Foundation (U.S.) (Grant AST-0908884) National Science Foundation (U.S.) (Grant PHY-0835713) United States. Air Force Office of Scientific Research (Grant FA9550-0510247) Smithsonian Astrophysical Observatory MIT School of Science 2014-07-22T14:13:51Z 2014-07-22T14:13:51Z 2013-01 2012-06 Article http://purl.org/eprint/type/JournalArticle 1323-3580 1448-6083 http://hdl.handle.net/1721.1/88460 Tingay, S. J., R. Goeke, J. D. Bowman, D. Emrich, S. M. Ord, D. A. Mitchell, M. F. Morales, et al. “The Murchison Widefield Array: The Square Kilometre Array Precursor at Low Radio Frequencies.” Publications of the Astronomical Society of Australia 30 (January 2013). https://orcid.org/0000-0002-4117-570X https://orcid.org/0000-0001-7130-208X https://orcid.org/0000-0003-1941-7458 en_US http://dx.doi.org/10.1017/pasa.2012.007 Publications of the Astronomical Society of Australia Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf CSIRO Publishing arXiv |
| spellingShingle | Goeke, Robert F. Lonsdale, Colin John Cappallo, Roger J. Corey, Brian E. Hewitt, Jacqueline N. Kincaid, Barton B. Kratzenberg, Eric W. McWhirter, Stephen R. Morgan, Edward H. Remillard, Ronald Alan Rogers, Alan E. E. Salah, J. E. Whitney, Alan R. Williams, Christopher Leigh The Murchison Widefield Array: The Square Kilometre Array Precursor at Low Radio Frequencies |
| title | The Murchison Widefield Array: The Square Kilometre Array Precursor at Low Radio Frequencies |
| title_full | The Murchison Widefield Array: The Square Kilometre Array Precursor at Low Radio Frequencies |
| title_fullStr | The Murchison Widefield Array: The Square Kilometre Array Precursor at Low Radio Frequencies |
| title_full_unstemmed | The Murchison Widefield Array: The Square Kilometre Array Precursor at Low Radio Frequencies |
| title_short | The Murchison Widefield Array: The Square Kilometre Array Precursor at Low Radio Frequencies |
| title_sort | murchison widefield array the square kilometre array precursor at low radio frequencies |
| url | http://hdl.handle.net/1721.1/88460 https://orcid.org/0000-0002-4117-570X https://orcid.org/0000-0001-7130-208X https://orcid.org/0000-0003-1941-7458 |
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