Revisiting the magnification of type la supernovae with SDSS

Brice Ménard, Neal Dalal

Research output: Contribution to journalArticlepeer-review

Abstract

We cross-correlate the sample of type la supernovae from Riess A. G. et al. with the SDSS DR2 photometric galaxy catalogue. In contrast to recent work, we find no detectable correlation between supernova magnitude and galaxy overdensity on scales ranging between 1 and 10 arcmin. Our results are in accord with theoretical expectations for gravitational lensing of supernovae by large-scale structure. Future supernova surveys such as SNAP will be capable of detecting unambiguously the predicted lensing signal.

Original languageEnglish (US)
Pages (from-to)101-104
Number of pages4
JournalMonthly Notices of the Royal Astronomical Society
Volume358
Issue number1
DOIs
StatePublished - Mar 21 2005
Externally publishedYes

Keywords

  • Gravitational lensing
  • Supernovae: general

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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