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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Bibliographic Details
Main Authors: Dillon, J., Neben, A., Hewitt, J., Tegmark, M., Barry, N., Beardsley, A., Bowman, J., Briggs, F., Carroll, P., De Oliveira-Costa, A., Ewall-Wice, A., Feng, L., Greenhill, L., Hazelton, B., Hernquist, L., Hurley-Walker, N., Jacobs, D., Kim, H., Kittiwisit, P., Lenc, E., Line, J., Loeb, A., McKinley, B., Mitchell, D., Morales, M., Offringa, A., Paul, S., Pindor, B., Pober, J., Procopio, P., Riding, J., Sethi, S., Shankar, N., Subrahmanyan, R., Sullivan, I., Thyagarajan, N., Tingay, Steven, Trott, C., Wayth, Randall, Webster, R., Wyithe, S., Bernardi, G., Cappallo, R., Deshpande, A., Johnston-Hollitt, M., Kaplan, D., Lonsdale, C., McWhirter, S., Morgan, E., Oberoi, D., Ord, S., Prabu, T., Srivani, K., Williams, A., Williams, C.
Format: Journal Article
Published: American Physical Society 2015
Online Access:http://hdl.handle.net/20.500.11937/41105

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