Angular two-point correlation of NVSS galaxies revisited

Chen S, Schwarz D (2016)
Astronomy & Astrophysics 591: A135.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
We measure the angular two-point correlation and angular power spectrum from the NRAO VLA Sky Survey (NVSS) of radio galaxies. They are found to be consistent with the best-fit cosmological model from the Planck analysis, and with the redshift distribution obtained from the Combined EIS-NVSS Survey Of Radio Sources (CENSORS). Our analysis is based on an optimal estimation of the two-point correlation function and makes use of a new mask that takes into account direction dependent effects of the observations, sidelobe effects of bright sources and galactic foreground. We also set a flux threshold and take the cosmic radio dipole into account. The latter turns out to be an essential step in the analysis. This improved cosmological analysis of the NVSS emphasizes the importance of a flux calibration that is robust and stable on large angular scales for future radio continuum surveys.
Stichworte
galaxies: statistics; radio continuum: galaxies; large-scale structure; of Universe
Erscheinungsjahr
2016
Zeitschriftentitel
Astronomy & Astrophysics
Band
591
Art.-Nr.
A135
ISSN
1432-0746
Page URI
https://pub.uni-bielefeld.de/record/2905155

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Chen S, Schwarz D. Angular two-point correlation of NVSS galaxies revisited. Astronomy & Astrophysics. 2016;591: A135.
Chen, S., & Schwarz, D. (2016). Angular two-point correlation of NVSS galaxies revisited. Astronomy & Astrophysics, 591, A135. doi:10.1051/0004-6361/201526956
Chen, S., and Schwarz, D. (2016). Angular two-point correlation of NVSS galaxies revisited. Astronomy & Astrophysics 591:A135.
Chen, S., & Schwarz, D., 2016. Angular two-point correlation of NVSS galaxies revisited. Astronomy & Astrophysics, 591: A135.
S. Chen and D. Schwarz, “Angular two-point correlation of NVSS galaxies revisited”, Astronomy & Astrophysics, vol. 591, 2016, : A135.
Chen, S., Schwarz, D.: Angular two-point correlation of NVSS galaxies revisited. Astronomy & Astrophysics. 591, : A135 (2016).
Chen, Song, and Schwarz, Dominik. “Angular two-point correlation of NVSS galaxies revisited”. Astronomy & Astrophysics 591 (2016): A135.

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arXiv: 1507.02160

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