Somebody has already mentioned on this blog post the importance of gravitational lensing effect on CMB and the necessity somehow to get rid of its signature in a, hopefully soon, measured B-mode spectum to estimate signal due to inflationary processes.
This is a bi-lingual blog of the members of the ADAMIS team at Laboratoire APC and invited guests. We comment on selected papers and events exploring, or relevant to, the interface between physics, cosmology, applied math, statistics, and numerical algorithms and which we have found interesting.
The opinions expressed in this blog reflect those of their authors and neither that of the ADAMIS group as a whole nor of Laboratoire APC.
The opinions expressed in this blog reflect those of their authors and neither that of the ADAMIS group as a whole nor of Laboratoire APC.
Showing posts with label weak lensing. Show all posts
Showing posts with label weak lensing. Show all posts
Monday, January 17, 2011
A first step to reconstruct lensing potential [arXiv:1012.1600]
Somebody has already mentioned on this blog post the importance of gravitational lensing effect on CMB and the necessity somehow to get rid of its signature in a, hopefully soon, measured B-mode spectum to estimate signal due to inflationary processes.
Labels:
CMB,
CMB experiments,
Cosmology,
lensing,
non-Gaussianities,
Statistics,
weak lensing,
WMAP
Saturday, October 9, 2010
(Lensing) cleaning time !
[arXiv:1010.0048v2]
As mentioned in the post by Josquin elsewhere in this blog, weak lensing has great potential for cosmology and one which we still have to wait to be fully realized. A blessing one might almost think then.
Not always so though ...
Not always so though ...
Labels:
B-modes,
CMB,
CMB polarization,
de-lensing,
weak lensing
Friday, October 8, 2010
Une nouvelle façon d’estimer les masses des clusters ?
[arXiv:1009.5735]
La mesure des masses de clusters par weak lensing via l'analyse du shear et de la magnification.
L'estimation de la masses des clusters est une donnée importante pour la cosmologie et l'astrophysique : mesure de σ8, contrainte sur la gravité aux échelles cosmologiques, comparaison avec les masses mesurées par rayons-X et SZ, contraintes sur l'évolution des galaxies.
L'estimation de la masses des clusters est une donnée importante pour la cosmologie et l'astrophysique : mesure de σ8, contrainte sur la gravité aux échelles cosmologiques, comparaison avec les masses mesurées par rayons-X et SZ, contraintes sur l'évolution des galaxies.
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