Fast holographic deconvolution: a new technique for precision radio interferometry
We introduce the Fast Holographic Deconvolution method for analyzing interferometric radio data. Our new method is an extension of A-projection/software-holography/forward modeling analysis techniques and shares their precision deconvolution and wide-field polarimetry, while being significantly fast...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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IOP Publishing
2013
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| Online Access: | http://hdl.handle.net/1721.1/76242 https://orcid.org/0000-0002-4117-570X https://orcid.org/0000-0001-7130-208X |
| _version_ | 1826208257242300416 |
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| author | Williams, Christopher Leigh Goeke, Robert F Hewitt, Jacqueline N Morgan, Edward H Remillard, Ronald A |
| author2 | MIT Kavli Institute for Astrophysics and Space Research |
| author_facet | MIT Kavli Institute for Astrophysics and Space Research Williams, Christopher Leigh Goeke, Robert F Hewitt, Jacqueline N Morgan, Edward H Remillard, Ronald A |
| author_sort | Williams, Christopher Leigh |
| collection | MIT |
| description | We introduce the Fast Holographic Deconvolution method for analyzing interferometric radio data. Our new method is an extension of A-projection/software-holography/forward modeling analysis techniques and shares their precision deconvolution and wide-field polarimetry, while being significantly faster than current implementations that use full direction-dependent antenna gains. Using data from the MWA 32 antenna prototype, we demonstrate the effectiveness and precision of our new algorithm. Fast Holographic Deconvolution may be particularly important for upcoming 21 cm cosmology observations of the Epoch of Reionization and Dark Energy where foreground subtraction is intimately related to the precision of the data reduction. |
| first_indexed | 2024-09-23T14:02:59Z |
| format | Article |
| id | mit-1721.1/76242 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T14:02:59Z |
| publishDate | 2013 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | mit-1721.1/762422022-10-01T18:49:04Z Fast holographic deconvolution: a new technique for precision radio interferometry Williams, Christopher Leigh Goeke, Robert F Hewitt, Jacqueline N Morgan, Edward H Remillard, Ronald A MIT Kavli Institute for Astrophysics and Space Research Goeke, Robert F. Hewitt, Jacqueline N. Morgan, Edward H. Remillard, Ronald Alan Williams, Christopher Leigh We introduce the Fast Holographic Deconvolution method for analyzing interferometric radio data. Our new method is an extension of A-projection/software-holography/forward modeling analysis techniques and shares their precision deconvolution and wide-field polarimetry, while being significantly faster than current implementations that use full direction-dependent antenna gains. Using data from the MWA 32 antenna prototype, we demonstrate the effectiveness and precision of our new algorithm. Fast Holographic Deconvolution may be particularly important for upcoming 21 cm cosmology observations of the Epoch of Reionization and Dark Energy where foreground subtraction is intimately related to the precision of the data reduction. National Science Foundation (U.S.) (Grant AST CAREER-0847753) National Science Foundation (U.S.) (Grant AST-1003314) National Science Foundation (U.S.) (Grant AST-0457585) National Science Foundation (U.S.) (Grant AST-1008353) National Science Foundation (U.S.) (Grant AST-0908884) National Science Foundation (U.S.) (Grant PHY-0835713) Australian Research Council (Grant LE0775621) Australian Research Council (Grant LE0882938) United States. Air Force Office of Scientific Research (Grant FA9550-0510247) MIT School of Science 2013-01-10T19:14:06Z 2013-01-10T19:14:06Z 2012-10 2012-04 Article http://purl.org/eprint/type/JournalArticle 0004-637X 1538-4357 http://hdl.handle.net/1721.1/76242 Sullivan, I. S. et al. “Fast holographic deconvolution: a new technique for precision radio interferometry.” The Astrophysical Journal 759.1 (2012): 17. https://orcid.org/0000-0002-4117-570X https://orcid.org/0000-0001-7130-208X en_US http://dx.doi.org/10.1088/0004-637X/759/1/17 Astrophysical Journal Creative Commons Attribution-Noncommercial-Share Alike 3.0 http://creativecommons.org/licenses/by-nc-sa/3.0/ application/pdf IOP Publishing arXiv |
| spellingShingle | Williams, Christopher Leigh Goeke, Robert F Hewitt, Jacqueline N Morgan, Edward H Remillard, Ronald A Fast holographic deconvolution: a new technique for precision radio interferometry |
| title | Fast holographic deconvolution: a new technique for precision radio interferometry |
| title_full | Fast holographic deconvolution: a new technique for precision radio interferometry |
| title_fullStr | Fast holographic deconvolution: a new technique for precision radio interferometry |
| title_full_unstemmed | Fast holographic deconvolution: a new technique for precision radio interferometry |
| title_short | Fast holographic deconvolution: a new technique for precision radio interferometry |
| title_sort | fast holographic deconvolution a new technique for precision radio interferometry |
| url | http://hdl.handle.net/1721.1/76242 https://orcid.org/0000-0002-4117-570X https://orcid.org/0000-0001-7130-208X |
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