THE MURCHISON WIDEFIELD ARRAY 21 cm POWER SPECTRUM ANALYSIS METHODOLOGY
We present the 21 cm power spectrum analysis approach of the Murchison Widefield Array Epoch of Reionization project. In this paper, we compare the outputs of multiple pipelines for the purpose of validating statistical limits cosmological hydrogen at redshifts between 6 and 12. Multiple independent...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | en_US |
| Published: |
IOP Publishing
2016
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| Online Access: | http://hdl.handle.net/1721.1/105094 https://orcid.org/0000-0003-3336-9958 https://orcid.org/0000-0002-0086-7363 https://orcid.org/0000-0003-0422-2324 https://orcid.org/0000-0002-4117-570X https://orcid.org/0000-0001-7776-7240 https://orcid.org/0000-0001-7670-7190 https://orcid.org/0000-0001-7130-208X |
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| author | Jacobs, Daniel C. Hazelton, B. J. Trott, C. M. Pindor, B. Sullivan, I. S. Pober, J. C. Barry, N. Beardsley, A. P. Bernardi, G. Bowman, Judd D. Briggs, F. Cappallo, R. J. Carroll, P. Emrich, D. Gaensler, B. M. Greenhill, L. J. Hurley-Walker, N. Johnston-Hollitt, M. Kaplan, D. L. Kasper, J. C. Kim, H. S. Lenc, E. Line, J. Loeb, A. Lynch, M. J. McKinley, B. Mitchell, D.A. Morales, M. F. Thyagarajan, N. Oberoi, D. Offringa, A. R. Ord, S. M. Paul, S. Prabu, T. Procopio, P. Riding, J. Roshi, A. Shankar, N. Udaya Sethi, Shiv K. Srivani, K. S. Subrahmanyan, R. Tingay, S. J. Waterson, M. Wayth, R. B. Webster, R. L. Whitney, A. R. Williams, A. Wu, C. Wyithe, J. S. B. Corey, B. E. Kratzenberg, E. Lonsdale, C. J. Rogers, A. E. E. Dillon, Joshua Shane de Oliveira Costa, Angelica Ewall-Wice, Aaron Michael Feng, Lu Goeke, Robert F Hewitt, Jacqueline N Morgan, Edward H Neben, Abraham Richard Tegmark, Max Erik Williams, Christopher Leigh |
| author2 | Haystack Observatory |
| author_facet | Haystack Observatory Jacobs, Daniel C. Hazelton, B. J. Trott, C. M. Pindor, B. Sullivan, I. S. Pober, J. C. Barry, N. Beardsley, A. P. Bernardi, G. Bowman, Judd D. Briggs, F. Cappallo, R. J. Carroll, P. Emrich, D. Gaensler, B. M. Greenhill, L. J. Hurley-Walker, N. Johnston-Hollitt, M. Kaplan, D. L. Kasper, J. C. Kim, H. S. Lenc, E. Line, J. Loeb, A. Lynch, M. J. McKinley, B. Mitchell, D.A. Morales, M. F. Thyagarajan, N. Oberoi, D. Offringa, A. R. Ord, S. M. Paul, S. Prabu, T. Procopio, P. Riding, J. Roshi, A. Shankar, N. Udaya Sethi, Shiv K. Srivani, K. S. Subrahmanyan, R. Tingay, S. J. Waterson, M. Wayth, R. B. Webster, R. L. Whitney, A. R. Williams, A. Wu, C. Wyithe, J. S. B. Corey, B. E. Kratzenberg, E. Lonsdale, C. J. Rogers, A. E. E. Dillon, Joshua Shane de Oliveira Costa, Angelica Ewall-Wice, Aaron Michael Feng, Lu Goeke, Robert F Hewitt, Jacqueline N Morgan, Edward H Neben, Abraham Richard Tegmark, Max Erik Williams, Christopher Leigh |
| author_sort | Jacobs, Daniel C. |
| collection | MIT |
| description | We present the 21 cm power spectrum analysis approach of the Murchison Widefield Array Epoch of Reionization project. In this paper, we compare the outputs of multiple pipelines for the purpose of validating statistical limits cosmological hydrogen at redshifts between 6 and 12. Multiple independent data calibration and reduction pipelines are used to make power spectrum limits on a fiducial night of data. Comparing the outputs of imaging and power spectrum stages highlights differences in calibration, foreground subtraction, and power spectrum calculation. The power spectra found using these different methods span a space defined by the various tradeoffs between speed, accuracy, and systematic control. Lessons learned from comparing the pipelines range from the algorithmic to the prosaically mundane; all demonstrate the many pitfalls of neglecting reproducibility. We briefly discuss the way these different methods attempt to handle the question of evaluating a significant detection in the presence of foregrounds. |
| first_indexed | 2024-09-23T11:18:42Z |
| format | Article |
| id | mit-1721.1/105094 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T11:18:42Z |
| publishDate | 2016 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | mit-1721.1/1050942022-10-01T02:44:34Z THE MURCHISON WIDEFIELD ARRAY 21 cm POWER SPECTRUM ANALYSIS METHODOLOGY Jacobs, Daniel C. Hazelton, B. J. Trott, C. M. Pindor, B. Sullivan, I. S. Pober, J. C. Barry, N. Beardsley, A. P. Bernardi, G. Bowman, Judd D. Briggs, F. Cappallo, R. J. Carroll, P. Emrich, D. Gaensler, B. M. Greenhill, L. J. Hurley-Walker, N. Johnston-Hollitt, M. Kaplan, D. L. Kasper, J. C. Kim, H. S. Lenc, E. Line, J. Loeb, A. Lynch, M. J. McKinley, B. Mitchell, D.A. Morales, M. F. Thyagarajan, N. Oberoi, D. Offringa, A. R. Ord, S. M. Paul, S. Prabu, T. Procopio, P. Riding, J. Roshi, A. Shankar, N. Udaya Sethi, Shiv K. Srivani, K. S. Subrahmanyan, R. Tingay, S. J. Waterson, M. Wayth, R. B. Webster, R. L. Whitney, A. R. Williams, A. Wu, C. Wyithe, J. S. B. Corey, B. E. Kratzenberg, E. Lonsdale, C. J. Rogers, A. E. E. Dillon, Joshua Shane de Oliveira Costa, Angelica Ewall-Wice, Aaron Michael Feng, Lu Goeke, Robert F Hewitt, Jacqueline N Morgan, Edward H Neben, Abraham Richard Tegmark, Max Erik Williams, Christopher Leigh Haystack Observatory Massachusetts Institute of Technology. Department of Physics MIT Kavli Institute for Astrophysics and Space Research Dillon, Joshua Shane de Oliveira Costa, Angelica Ewall-Wice, Aaron Michael Feng, Lu Goeke, Robert F Hewitt, Jacqueline N Morgan, Edward H Neben, Abraham Richard Tegmark, Max Erik Williams, Christopher Leigh We present the 21 cm power spectrum analysis approach of the Murchison Widefield Array Epoch of Reionization project. In this paper, we compare the outputs of multiple pipelines for the purpose of validating statistical limits cosmological hydrogen at redshifts between 6 and 12. Multiple independent data calibration and reduction pipelines are used to make power spectrum limits on a fiducial night of data. Comparing the outputs of imaging and power spectrum stages highlights differences in calibration, foreground subtraction, and power spectrum calculation. The power spectra found using these different methods span a space defined by the various tradeoffs between speed, accuracy, and systematic control. Lessons learned from comparing the pipelines range from the algorithmic to the prosaically mundane; all demonstrate the many pitfalls of neglecting reproducibility. We briefly discuss the way these different methods attempt to handle the question of evaluating a significant detection in the presence of foregrounds. National Science Foundation (U.S.) (award AST-1109257) National Science Foundation (U.S.). Astronomy and Astrophysics Postdoctoral Fellowship (award AST 1109257) Australian Research Council (DECRA Award DEI140100316) National Science Foundation (U.S.) (grant AST-1410484) National Science Foundation (U.S.) (grant AST-0821321) National Science Foundation (U.S.) (grant AST-0457585) National Science Foundation (U.S.) (grant PHYS-0835713) National Science Foundation (U.S.) (grant CAREER-0847753) National Science Foundation (U.S.) (grant AST-0908884) Australian Research Council (LIEF grant LE0775621) Australian Research Council (LIEF grant LE0882938) Smithsonian Astrophysical Observatory Massachusetts Institute of Technology. School of Science Raman Research Institute Australian National University Victoria University of Wellington New Zealand. Ministry of Economic Development (grant MED-E1799) IBM Research (Shared University Research Grant) 2016-10-26T17:50:47Z 2016-10-26T17:50:47Z 2016-07 2016-05 Article http://purl.org/eprint/type/JournalArticle 1538-4357 0004-637X http://hdl.handle.net/1721.1/105094 Jacobs, Daniel C., B. J. Hazelton, C. M. Trott, Joshua S. Dillon, B. Pindor, I. S. Sullivan, J. C. Pober, et al. “THE MURCHISON WIDEFIELD ARRAY 21 Cm POWER SPECTRUM ANALYSIS METHODOLOGY.” The Astrophysical Journal vol. 825, no. 2, 114, July 2016, pp. 1-16. © 2016. The American Astronomical Society. https://orcid.org/0000-0003-3336-9958 https://orcid.org/0000-0002-0086-7363 https://orcid.org/0000-0003-0422-2324 https://orcid.org/0000-0002-4117-570X https://orcid.org/0000-0001-7776-7240 https://orcid.org/0000-0001-7670-7190 https://orcid.org/0000-0001-7130-208X en_US http://dx.doi.org/10.3847/0004-637x/825/2/114 Astrophysical Journal Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf IOP Publishing |
| spellingShingle | Jacobs, Daniel C. Hazelton, B. J. Trott, C. M. Pindor, B. Sullivan, I. S. Pober, J. C. Barry, N. Beardsley, A. P. Bernardi, G. Bowman, Judd D. Briggs, F. Cappallo, R. J. Carroll, P. Emrich, D. Gaensler, B. M. Greenhill, L. J. Hurley-Walker, N. Johnston-Hollitt, M. Kaplan, D. L. Kasper, J. C. Kim, H. S. Lenc, E. Line, J. Loeb, A. Lynch, M. J. McKinley, B. Mitchell, D.A. Morales, M. F. Thyagarajan, N. Oberoi, D. Offringa, A. R. Ord, S. M. Paul, S. Prabu, T. Procopio, P. Riding, J. Roshi, A. Shankar, N. Udaya Sethi, Shiv K. Srivani, K. S. Subrahmanyan, R. Tingay, S. J. Waterson, M. Wayth, R. B. Webster, R. L. Whitney, A. R. Williams, A. Wu, C. Wyithe, J. S. B. Corey, B. E. Kratzenberg, E. Lonsdale, C. J. Rogers, A. E. E. Dillon, Joshua Shane de Oliveira Costa, Angelica Ewall-Wice, Aaron Michael Feng, Lu Goeke, Robert F Hewitt, Jacqueline N Morgan, Edward H Neben, Abraham Richard Tegmark, Max Erik Williams, Christopher Leigh THE MURCHISON WIDEFIELD ARRAY 21 cm POWER SPECTRUM ANALYSIS METHODOLOGY |
| title | THE MURCHISON WIDEFIELD ARRAY 21 cm POWER SPECTRUM ANALYSIS METHODOLOGY |
| title_full | THE MURCHISON WIDEFIELD ARRAY 21 cm POWER SPECTRUM ANALYSIS METHODOLOGY |
| title_fullStr | THE MURCHISON WIDEFIELD ARRAY 21 cm POWER SPECTRUM ANALYSIS METHODOLOGY |
| title_full_unstemmed | THE MURCHISON WIDEFIELD ARRAY 21 cm POWER SPECTRUM ANALYSIS METHODOLOGY |
| title_short | THE MURCHISON WIDEFIELD ARRAY 21 cm POWER SPECTRUM ANALYSIS METHODOLOGY |
| title_sort | murchison widefield array 21 cm power spectrum analysis methodology |
| url | http://hdl.handle.net/1721.1/105094 https://orcid.org/0000-0003-3336-9958 https://orcid.org/0000-0002-0086-7363 https://orcid.org/0000-0003-0422-2324 https://orcid.org/0000-0002-4117-570X https://orcid.org/0000-0001-7776-7240 https://orcid.org/0000-0001-7670-7190 https://orcid.org/0000-0001-7130-208X |
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