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Constraining the Cosmic Mass Density from the SBF Survey Peculiar Velocities

Published online by Cambridge University Press:  26 May 2016

J. P. Blakeslee ,
J. L. Tonry ,
A. Dressler ,
E. A. Ajhar ,
M. Davis ,
J. A. Willick ,
M. A. Strauss  and
V. K. Narayan
J. P. Blakeslee
Affiliation:
Department of Physics, University of Durham, South Road, Durham, DEI 3LE, UK (email: [email protected])
J. L. Tonry
Affiliation:
Department of Physics, University of Durham, South Road, Durham, DEI 3LE, UK (email: [email protected])
E. A. Ajhar
Affiliation:
Department of Physics, University of Durham, South Road, Durham, DEI 3LE, UK (email: [email protected])
M. Davis
Affiliation:
Department of Physics, University of Durham, South Road, Durham, DEI 3LE, UK (email: [email protected])
J. A. Willick
Affiliation:
Department of Physics, University of Durham, South Road, Durham, DEI 3LE, UK (email: [email protected])
M. A. Strauss
Affiliation:
Department of Physics, University of Durham, South Road, Durham, DEI 3LE, UK (email: [email protected])
V. K. Narayan
Affiliation:
Department of Physics, University of Durham, South Road, Durham, DEI 3LE, UK (email: [email protected])

Abstract

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The recently completed I-band SBF Survey of Galaxy Distances contains about 300 galaxy distances within cz ≲ 4000 km/s. These data allow for good constraints on the local mass density and velocity fields. The mass density parameter βI ≡ Ω0.6/bI, where bI is the biasing factor of the IRAS redshift survey galaxies, is found to be βI ≍ 0.45.

Type
Part XII: Poster Papers
Information
Symposium - International Astronomical Union , Volume 201: New Cosmological Data and the Values of the Fundamental Parameters , 2005 , pp. 439 - 440
Copyright
Copyright © Astronomical Society of the Pacific 2005 

References

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