Hubble Parameter in Void Universe

Details Hubble Parameter in Void Universe Hubble Parameter in Void Universe

1995-02-10

arxiv.org/abs/astro-ph/9502054v1

Astrophys.J. 453 (1995) 541-544

Astronomy and Astrophysics

Astrophysics

5 pages, uuencode compressed latex with 2 EPS figures,

Scientific paper

10.1086/176416

We investigate the distance-redshift relation in the simple void model. As discussed by Moffat and Tatarski, if the observer stays at the center of the void, the observed Hubble parameter is not so different from the background Hubble parameter. However, if the position of observer is off center of the void, we must consider the peculiar velocity correction which is measured by the observed dipole anisotropy of cosmic microwave background. This peculiar velocity correction for the redshift is crucial to determine the Hubble parameter and we shall discuss this effect. Further the results of Turner et al by the N-body simulation will be also considered.

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