Cosmology with Photometric Baryon Acoustic Oscillation Measurements

Details Cosmology with Photometric Baryon Acoustic Oscillation Measurements Cosmology with Photometric Baryon Acoustic Oscillation Measurements

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...21113706z&link_type=abstract

American Astronomical Society, AAS Meeting #211, #137.06; Bulletin of the American Astronomical Society, Vol. 39, p.979

Astronomy and Astrophysics

Astronomy

Scientific paper

LSST will obtain photometric redshifts for 4 billion galaxies with the distribution peaking around z = 1 and approximately 10% of the galaxies at z > 2.5. It will achieve percent level precision on the angular diameter distance at 10 redshifts logarithmically spaced between z = 0.3 to 3.5 with a CMB-calibrated standard ruler -- baryon acoustic oscillations (BAO) in the galaxy (and matter) power spectrum. By themselves, LSST BAO will provide weaker constraints on the dark energy equation of state parameters, w0 and wa, than LSST weak lensing (WL). However, because one can calibrate the error distribution of photometric redshifts with galaxy power spectra and determine the galaxy bias with galaxy and WL shear power spectra, a joint analysis of LSST BAO and WL will reduce the error ellipse area in the w0-wa plane to one sixth of that by LSST WL alone.

Affiliated with

Also associated with

No associations

Rating

Cosmology with Photometric Baryon Acoustic Oscillation Measurements 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 Cosmology with Photometric Baryon Acoustic Oscillation Measurements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cosmology with Photometric Baryon Acoustic Oscillation Measurements will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1482461