| Issue |
A&A
Volume 397, Number 3, January III 2003
|
|
|---|---|---|
| Page(s) | 819 - 823 | |
| Section | Cosmology (including clusters of galaxies) | |
| DOI | https://doi.org/10.1051/0004-6361:20021547 | |
| Published online | 21 January 2003 | |
Correcting for lensing bias in the Hubble diagram
Physics Department, Stockholm University, SCFAB, 106 91 Stockholm, Sweden
Corresponding author: R. Amanullah, rahman@physto.se
Received:
19
April
2002
Accepted:
23
October
2002
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.
Key words: gravitational lensing / cosmological parameters / methods: statistical
© ESO, 2003
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