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., Beardsley, A. P., Bowman, Judd D., Briggs, Frank H., Carroll, P., Greenhill, Lincoln J., Hazelton, B. J., Hernquist, L., Hurley-Walker, N., Jacobs, Daniel C., Kim, H. S., Kittiwisit, P., Lenc, Emil, Line, J., Loeb, Abraham, McKinley, B., Mitchell, Daniel A., Morales, Miguel F., Offringa, A. R., Paul, S., Pindor, B., Pober, J. C., Procopio, P., Riding, J., Sethi, S., Shankar, N. Udaya, Subrahmanyan, R., Sullivan, I., Thyagarajan, Nithyanandan, Tingay, S. J., Trott, C., Wayth, R. B., Webster, R. L., Wyithe, S., Bernardi, G., Cappallo, Roger J., Deshpande, Ajay A., Johnston-Hollitt, M., Kaplan, David L., Oberoi, Divya, Ord, S. M., Prabu, T., Srivani, K. S., Williams, A., Dillon, Joshua Shane, Neben, Abraham Richard, Tegmark, Max Erik, Ewall-Wice, Aaron Michael, Feng, Lu, Lonsdale, Colin John, McWhirter, Stephen R., Williams, Christopher Leigh, de Oliveira Costa, Angelica, Morgan, Edward H, Hewitt, Jacqueline N
Other Authors: Haystack Observatory
Format: Article
Language:English
Published: American Physical Society 2015
Online Access:http://hdl.handle.net/1721.1/97502
https://orcid.org/0000-0002-4117-570X
https://orcid.org/0000-0001-7776-7240
https://orcid.org/0000-0001-7130-208X
https://orcid.org/0000-0002-0086-7363
https://orcid.org/0000-0003-3336-9958
https://orcid.org/0000-0001-7670-7190
https://orcid.org/0000-0003-0422-2324

Internet

http://hdl.handle.net/1721.1/97502
https://orcid.org/0000-0002-4117-570X
https://orcid.org/0000-0001-7776-7240
https://orcid.org/0000-0001-7130-208X
https://orcid.org/0000-0002-0086-7363
https://orcid.org/0000-0003-3336-9958
https://orcid.org/0000-0001-7670-7190
https://orcid.org/0000-0003-0422-2324

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