Comparing the SBF Survey Velocity Field with the Gravity Field from Redshift Surveys

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dc.creatorBlakeslee, J. P.
dc.creatorDavis, M.
dc.creatorTonry, J. L.
dc.creatorAjhar, E. A.
dc.creatorDressler, A.
dc.date1999-10-19
dc.date.accessioned2026-07-07T02:33:56Z
dc.date.available2026-07-07T02:33:56Z
dc.descriptionWe compare the predicted local peculiar velocity field from the IRAS 1.2 Jy flux-limited redshift survey and the Optical Redshift Survey (ORS) to the measured peculiar velocities from the recently completed SBF Survey of Galaxy Distances. The analysis produces a value of β= Ω^{0.6}/b for the redshift surveys, where b is the linear biasing factor, and a tie to the Hubble flow, i.e., a value of H_0, for the SBF Survey. There is covariance between these parameters, but we find good fits with H_0 \approx 74 \kmsM for the SBF distances, β_I \approx 0.44 for the IRAS survey predictions, and β_O \approx 0.3 for the ORS. The small-scale velocity error \sigv \sim 200 \kms is similar to, though slightly larger than, the value obtained in our parametric flow modeling with SBF.
dc.description8 LaTex pages with 6 figures. To appear in the proceedings of the "Cosmic Flows" workshop, held in Victoria, Canada, July 1999, ASP series, eds. S. Courteau, M.A. Strauss, & J.A. Willick
dc.identifierhttps://arxiv.org/abs/astro-ph/9910342
dc.identifierhttp://arxiv.org/abs/astro-ph/9910342
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/15046
dc.subjectAstrophysics
dc.titleComparing the SBF Survey Velocity Field with the Gravity Field from Redshift Surveys
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