PSCz-1.2 Jy Comparison: A Spherical Harmonics Approach

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dc.creatorTeodoro, Luis
dc.creatorBranchini, Enzo
dc.creatorFrenk, Carlos
dc.creatorSaunders, Will
dc.creatorOliver, Seb
dc.creatorKeeble, Oliver
dc.creatorRowan-Robinson, Michael
dc.creatorMaddox, Steve
dc.creatorEfstathiou, George
dc.creatorSutherland, Will
dc.creatorWhite, Simon
dc.date1999-08-31
dc.date.accessioned2026-07-07T02:32:59Z
dc.date.available2026-07-07T02:32:59Z
dc.descriptionWe perform a detailed comparison of the IRAS PSCz and 1.2-Jy spherical harmonic coefficients of the density and velocity fields in redshift space. The monopole terms predicted from the two surveys show some differences. The mismatch between the velocity monopoles arises from faint sources and disappears when extracting a PSCz subsample of galaxies with fluxes larger than 1.2 Jy. The analysis of PSCz dipole moments confirms the same inconsistencies found by Davis, Nusser and Willick (1996) between the IRAS 1.2-Jy gravity field and MARK III peculiar velocities. We conclude that shot-noise, which is greatly reduced in our PSCz gravity field, cannot be responsible for the observed mismatch.
dc.description4 pages Latex, 2 figures. Cosmic Flows Workshop, Victoria, Canada, July 1999, ed. S. Courteau, M. Strauss & J. Willick, ASP series
dc.identifierhttps://arxiv.org/abs/astro-ph/9908358
dc.identifierhttp://arxiv.org/abs/astro-ph/9908358
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/14667
dc.subjectAstrophysics
dc.titlePSCz-1.2 Jy Comparison: A Spherical Harmonics Approach
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