Empirical covariance modeling for 21 cm power spectrum estimation: A method demonstration and new limits from early Murchison Widefield Array 128-tile data

Empirical covariance modeling for 21 cm power spectrum estimation: A method demonstration and new limits from early Murchison Widefield Array 128-tile data

The separation of the faint cosmological background signal from bright astrophysical foregrounds remains one of the most daunting challenges of mapping the high-redshift intergalactic medium with the redshifted 21 cm line of neutral hydrogen. Advances in mapping and modeling of diffuse and point sou...

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Main Authors: Barry, N. (Author), Beardsley, A. P (Author), Bowman, Judd D. (Author), Briggs, Frank H. (Author), Carroll, P. (Author), Greenhill, Lincoln J. (Author), Hazelton, B. J (Author), Hernquist, L. (Author), Hurley-Walker, N. (Author), Jacobs, Daniel C. (Author), Kim, H. S (Author), Kittiwisit, P. (Author), Lenc, Emil (Author), Line, J. (Author), Loeb, Abraham (Author), McKinley, B. (Author), Mitchell, Daniel A. (Author), Morales, Miguel F. (Author), Offringa, A. R (Author), Paul, S. (Author), Pindor, B. (Author), Pober, J. C (Author), Procopio, P. (Author), Riding, J. (Author), Sethi, S. (Author), Shankar, N. Udaya (Author), Subrahmanyan, R. (Author), Sullivan, I. (Author), Thyagarajan, Nithyanandan (Author), Tingay, S. J (Author), Trott, C. (Author), Wayth, R. B (Author), Webster, R. L (Author), Wyithe, S. (Author), Bernardi, G. (Author), Cappallo, Roger J. (Author), Deshpande, Ajay A. (Author), Johnston-Hollitt, M. (Author), Kaplan, David L. (Author), Oberoi, Divya (Author), Ord, S. M (Author), Prabu, T. (Author), Srivani, K. S (Author), Williams, A. (Author), Dillon, Joshua Shane (Contributor), Neben, Abraham Richard (Contributor), Tegmark, Max Erik (Contributor), Ewall-Wice, Aaron Michael (Contributor), Feng, Lu (Contributor), Lonsdale, Colin John (Contributor), McWhirter, Stephen R. (Contributor), Williams, Christopher Leigh (Contributor), de Oliveira Costa, Angelica (Author), Morgan, Edward H (Author), Hewitt, Jacqueline N (Author)
Other Authors: Haystack Observatory (Contributor), Lincoln Laboratory (Contributor), Massachusetts Institute of Technology. Department of Physics (Contributor), MIT Kavli Institute for Astrophysics and Space Research (Contributor), Hewitt, Jacqueline N. (Contributor), de Oliveira-Costa, Angelica (Contributor), Morgan, Edward H. (Contributor)
Format: Article
Language:English
Published: American Physical Society, 2015-06-22T16:28:37Z.
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