Omega from the anisotropy of the redshift correlation function in the IRAS 2 Jansky survey

Details Omega from the anisotropy of the redshift correlation function in the IRAS 2 Jansky survey Omega from the anisotropy of the redshift correlation function in the IRAS 2 Jansky survey

Apr 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...406l..47h&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 406, no. 2, p. L47-L50.

Astronomy and Astrophysics

Astronomy

52

Data Correlation, Galactic Clusters, Galactic Structure, Red Shift, Space Density, Anisotropy, Sky Surveys (Astronomy)

Scientific paper

Peculiar velocities distort the correlation function of galaxies in redshift space. In the linear regime, the distortion has a characteristic quadrupole plus hexadecapole form, with amplitude depending on the cosmological density parameter Omega. I report here measurements of the anisotropy of the correlation function in the IRAS 2 Jy redshift survey. The inferred value of Omega is Omega = 0.5 + 0.5 or - 0.25.

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