作者: Brice Ménard , Neal Krishnakant Dalal
DOI: 10.1111/J.1365-2966.2005.08764.X
关键词: Supernova 、 Astronomy 、 Magnification 、 Astrophysics 、 Gravitational lens 、 Galaxy 、 Magnitude (astronomy) 、 Physics
摘要: We cross-correlate the sample of type Ia supernovae from Riess A. G. et al. with SDSS DR2 photometric galaxy catalogue. In contrast to recent work, we find no detectable correlation between supernova magnitude and overdensity on scales ranging 1 10 arcmin. Our results are in accord theoretical expectations for gravitational lensing by large-scale structure. Future surveys such as SNAP will be capable detecting unambiguously predicted signal.