Probing Dark Energy with Baryon Acoustic Oscillations from the LSST Survey

Details Probing Dark Energy with Baryon Acoustic Oscillations from the LSST Survey Probing Dark Energy with Baryon Acoustic Oscillations from the LSST Survey

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...207.2605z&link_type=abstract

American Astronomical Society Meeting 207, #26.05; Bulletin of the American Astronomical Society, Vol. 37, p.1202

Astronomy and Astrophysics

Astronomy

2

Scientific paper

The acoustic waves that give rise to the peaks seen in the cosmic microwave background (CMB) temperature fluctuation power spectrum also affect the power spectra of matter and galaxies. The acoustic waves generate a small excess in the galaxy two-point correlation function at roughly 150 h-1Mpc (comoving), corresponding to oscillating features in the power spectrum, known as baryon acoustic oscillations (BAO). Since the comoving length scales of these features do not change after recombination, BAO can be used as a CMB-calibrated standard ruler to measure angular diameter distances and the Hubble parameter as functions of redshift. We show that LSST will be able to measure the angular diameter distance to better than a few percent with BAO. Meanwhile, if the distribution of photometric redshift errors is accurately quantified as required by weak lensing, then LSST will also be able to measure the Hubble parameter with a comparable accuracy. This will enable LSST BAO to place constraints on dark energy equation of state parameters that are competitive with those from LSST shear power spectra.

Affiliated with

Also associated with

No associations

Rating

Probing Dark Energy with Baryon Acoustic Oscillations from the LSST Survey 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 Probing Dark Energy with Baryon Acoustic Oscillations from the LSST Survey, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Probing Dark Energy with Baryon Acoustic Oscillations from the LSST Survey will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1279099