Monte-Carlo simulation of a possible correlation between the estimated luminosity distances and internal extinctions of type Ia supernovae

L. G. Balázs, Zs Hetesi, M. Korsós

Research output: Contribution to journalArticle

Abstract

This paper describes a Monte Carlo simulation of type Ia supernova data. It was shown earlier that the data of SNe Ia might contain a possible correlation between the estimated luminosity distances and internal extinctions. This correlation was shown by different statistical investigations of the data. In order to remove observational biases (for example the effect of the detection limit of the observing instrument) and to test the reality of the effect found earlier we developed a simple routine which simulates extinction values, redshifts and absolute magnitudes for Ia supemovae. We pointed out that the correlation found earlier in the real data between the internal extinction and luminosity distance does not occur in the simulated sample. Furthermore, it became obvious that the detection limit of the observing devices used in supernova projects does not affect the far end of the redshift-luminosity distance relationship of Ia supemovae. This result strengthens the earlier conclusions of the authors that SN Ia supemovae alone do not support the existence of dark energy.

Original languageEnglish
Pages (from-to)858-862
Number of pages5
JournalAstronomische Nachrichten
Volume328
Issue number8
DOIs
Publication statusPublished - Aug 1 2007

Keywords

  • Cosmology: cosmological parameters
  • Methods: statistical
  • Supernovae: general

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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