Impact of QSO Lensing on WMAP Results

Details Impact of QSO Lensing on WMAP Results Impact of QSO Lensing on WMAP Results

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aspc..379..322m&link_type=abstract

Cosmic Frontiers ASP Conference Series, Vol. 379, proceedings of the conference held 31 July-4 August 2006 at Durham University,

Physics

Scientific paper

We have cross-correlated high redshift QSOs in the 2dF QSO survey (2QZ) with low redshift galaxies and groups from SDSS and made estimates of the galaxy bias from QSO lensing. We find evidence that the galaxies show an anti-bias with respect to the mass, with bias parameter, b˜0.2. We then take this result and show that the effect of lensing on the CMB first peak would be much larger than in the case of standard cosmology. Indeed, we show that in such a model, lensing can significantly move the position of the first acoustic peak. Thus if the QSO lensing results are correct, more models may be able to fit the WMAP CMB power spectra than currently appear to be the case. One such model is shown to be the low-H_0, Ω_{baryon}=1 model of te{ts85}.

Affiliated with

Also associated with

No associations

Rating

Impact of QSO Lensing on WMAP Results does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Impact of QSO Lensing on WMAP Results, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Impact of QSO Lensing on WMAP Results will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1109097