Mean Transmitted Flux in the Lyα Forest from a Sample of 2QZ Quasars

Details Mean Transmitted Flux in the Lyα Forest from a Sample of 2QZ Quasars Mean Transmitted Flux in the Lyα Forest from a Sample of 2QZ Quasars

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010wds..conf..163p&link_type=abstract

WDS'10 Proceedings of Contributed Papers: Part III -- Physics, p.163-168

Physics

Lyman-Alpha Forest, Large-Scale Structure, Cosmology, Qso, Quasar, Transmitted Flux

Scientific paper

The power spectrum of transmitted flux in the Lyα forest in spectra of distant quasars gives us an information about matter power spectrum on the smallest spatial scales which is very important for testing of different models of dark matter. Only a few independent samples of spectra obtained on diferent instruments have been used for this purpose, thus using of additional independent sample is useful for verification an existing results. We used the data from the 2dF (Two-degree Field) QSO Redshift Survey (2QZ) to obtain the mean transmitted flux for three different redshift bins. After visual inspection and rejection of spectra with broad absorption lines, damped Lyα systems and low signal-to-noise ratio spectra our final sample contains 655 quasars with redshift range 2.3 redshift within the range 2.1

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