Primordial non-Gaussianity in the halo bias

Details Primordial non-Gaussianity in the halo bias Primordial non-Gaussianity in the halo bias

Nov 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009sf2a.conf..207d&link_type=abstract

SF2A-2009: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics, held 29 June - 4 July 2009 in

Astronomy and Astrophysics

Astrophysics

Scientific paper

Primordial non-Gaussianity of the local type induces a scale-dependent bias in the clustering of rare objects. Calibration with numerical simulations is essential to measurements of galaxy/quasar power spectra that aim to put constraint on the amount of primordial non-Gaussianity. We compare theoretical predictions with the outcome of large N-body simulations evolved from Gaussian and non-Gaussian initial conditions. At low wavenumber k<0.03 hmmpc, the theory and the simulations agree well with each other for haloes with linear bias b(M)>1.5. Including a scale-independent bias correction improves the comparison between theory and simulations on smaller scales where the k-dependent effect becomes rapidly negligible. We place limits on the size of the cubic order correction using a compilation of large-scale structures data.

Affiliated with

Also associated with

No associations

Rating

Primordial non-Gaussianity in the halo bias 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 Primordial non-Gaussianity in the halo bias, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Primordial non-Gaussianity in the halo bias will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1152079