QSO-galaxy correlations induced by weak lensing in arbitrary Friedmann-Lemaître cosmologies

• Verfasst von: Dolag, Klaus [VerfasserIn]
• Verfasst von: Bartelmann, Matthias [VerfasserIn]
• Titel: QSO-galaxy correlations induced by weak lensing in arbitrary Friedmann-Lemaître cosmologies
• Verf.angabe: Klaus Dolag and Matthias Bartelmann
• Umfang: 9 S.
• Fussnoten: Gesehen am 28.09.2017
• Titel Quelle: Enthalten in: Royal Astronomical Society: Monthly notices of the Royal Astronomical Society
• Jahr Quelle: 1997
• Band/Heft Quelle: 291(1997), 3, S. 446-454
• ISSN Quelle: 1365-2966
• DOI: doi:10.1093/mnras/291.3.446
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1563900211

Abstract

We calculate the angular cross-correlation function between background QSOs and foreground galaxies induced by the weak lensing effect of large-scale structures. Results are given for arbitrary Friedmann-Lemaître cosmologies. The non-linear growth of density perturbations is included. Compared with the linear growth, the non-linear growth increases the correlation amplitude by about an order of magnitude in an Einstein-de Sitter universe, and by even more for lower Ω0. The dependence of the correlation amplitude on the cosmological parameters strongly depends on the normalization of the power spectrum.