Correcting for lensing bias in the Hubble diagram

被引：26

作者：

Amanullah, R ^{[1
]}

Mörtsell, E ^{[1
]}

Goobar, A ^{[1
]}

机构：

[1] Univ Stockholm, Dept Phys, SCFAB, S-10691 Stockholm, Sweden

来源：

ASTRONOMY & ASTROPHYSICS | 2003年 / 397卷 / 03期

关键词：

gravitational lensing; cosmological parameters; methods : statistical;

D O I：

10.1051/0004-6361:20021547

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Gravitational lensing will cause a dispersion in the Hubble diagram for high redshift sources. This effect introduces a bias in the cosmological parameter determination using the distance-redshift relation for type Ia supernovae. In this note we show how one can diagnose and correct for this bias when doing precision cosmology with supernovae.

引用

页码：819 / 823

页数：5

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