A local void and the accelerating supernovae

Details A local void and the accelerating supernovae A local void and the accelerating supernovae

Oct 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aipc..586..310t&link_type=abstract

RELATIVISTIC ASTROPHYSICS: 20th Texas Symposium. AIP Conference Proceedings, Volume 586, pp. 310-314 (2001).

Astronomy and Astrophysics

Astrophysics

Supernovae, Observational Cosmology

Scientific paper

The magnitude-redshift relation in a cosmological model with a local void is investigated, corresponding to the recent observational evidences that we are in a local void (an underdense region) on scales of 200-300 Mpc. It is already evident that the accelerating behavior of high-z supernovae can be explained in this model, because the local void plays a role similar to the positive cosmological constant. In this note the dependence of the behavior on the gaps of cosmological parameters in the inner (low-density) region and the outer (high-density) region is shown. .

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