Using data from the Pantheon SN Ia compilation and the Sloan Digital Sky Survey (SDSS), we propose an estimator for weak lensing convergence incorporating positional and photometric data of foreground galaxies. The correlation between this and the Hubble diagram residuals of the supernovae has $3.6\sigma$ significance, and is consistent with weak lensing magnification due to dark matter halos centered on galaxies. We additionally constrain the properties of the galactic haloes, such as the mass-to-light ratio $\Gamma$ and radial profile of the halo matter density $\rho(r)$. We derive a new relationship for the additional r.m.s. scatter in magnitudes caused by lensing, finding $\sigma_{\rm lens} = (0.06 \pm 0.017) (d_{\rm C}(z)/ d_{\rm C}(z=...
International audienceWe consider the effects of weak gravitational lensing on observations of 196 s...
Significant adjustments to the values of the cosmological parameters estimated from high-redshift Ty...
We investigate the possibility of correcting for the magnification due to gravitational lensing of s...
Using a sample of 608 Type Ia supernovae from the SDSS-II and BOSS surveys, combined with a sample o...
This paper exploits the gravitational magnification of Type Ia supernovae (SNe Ia) to measure proper...
Gravitational lensing of high-redshift supernovae is potentially an important source of uncertainty ...
Using a sample of 608 Type Ia supernovae from the SDSS-II and BOSS surveys, combined with a sample o...
13 pages, 17 figures, 1 table. Accepted for publication in AAThe observed brightness of Type Ia supe...
Aims. The observed brightness of type Ia supernovae is affected by gravitational lensing caused by...
Aims. To investigate the effect of gravitational lensing of supernovae in large ongoing surveys. ...
Aims. Magnification and de-magnification due to gravitational lensing will contribute to the brig...
Aims. The observed brightness of Type Ia supernovae is affected by gravitational lensing caused by t...
The presence of mass inhomogeneities along the line of sight of propagation of light fromdistant obj...
International audienceWe consider the effects of weak gravitational lensing on observations of 196 s...
Significant adjustments to the values of the cosmological parameters estimated from high-redshift Ty...
We investigate the possibility of correcting for the magnification due to gravitational lensing of s...
Using a sample of 608 Type Ia supernovae from the SDSS-II and BOSS surveys, combined with a sample o...
This paper exploits the gravitational magnification of Type Ia supernovae (SNe Ia) to measure proper...
Gravitational lensing of high-redshift supernovae is potentially an important source of uncertainty ...
Using a sample of 608 Type Ia supernovae from the SDSS-II and BOSS surveys, combined with a sample o...
13 pages, 17 figures, 1 table. Accepted for publication in AAThe observed brightness of Type Ia supe...
Aims. The observed brightness of type Ia supernovae is affected by gravitational lensing caused by...
Aims. To investigate the effect of gravitational lensing of supernovae in large ongoing surveys. ...
Aims. Magnification and de-magnification due to gravitational lensing will contribute to the brig...
Aims. The observed brightness of Type Ia supernovae is affected by gravitational lensing caused by t...
The presence of mass inhomogeneities along the line of sight of propagation of light fromdistant obj...
International audienceWe consider the effects of weak gravitational lensing on observations of 196 s...
Significant adjustments to the values of the cosmological parameters estimated from high-redshift Ty...
We investigate the possibility of correcting for the magnification due to gravitational lensing of s...