Combining Supernovae and LSS Information with the CMB

Details Combining Supernovae and LSS Information with the CMB Combining Supernovae and LSS Information with the CMB

1999-01-21

arxiv.org/abs/astro-ph/9901303v1

Astronomy and Astrophysics

Astrophysics

7 pages, 4 figures, submitted to ``The CMB and the Planck Mission'', proceedings of the workshop held in Santander, Spain, Jun

Scientific paper

Observations of the Cosmic Microwave Background (CMB), large scale structure (LSS) and standard candles such as Type 1a Supernovae (SN) each place different constraints on the values of cosmological parameters. We assume an inflationary Cold Dark Matter model with a cosmological constant, in which the initial density perturbations in the universe are adiabatic. We discuss the parameter degeneracies inherent in interpreting CMB or SN data, and derive their orthogonal nature. We then present our preliminary results of combining CMB and SN likelihood functions. The results of combining the CMB and IRAS 1.2 Jy survey information are given, with marginalised confidence regions in the H_0, Omega_m, b_IRAS and Q_rms-ps directions assuming n=1, Omega_Lambda+Omega_m=1 and Omega_b h^2=0.024. Finally we combine all three likelihood functions and find that the three data sets are consistent and suitably orthogonal, leading to tight constraints on H_0, Omega_m, b_IRAS and Q_rms-ps, given our assumptions.

Affiliated with

Also associated with

No associations

Rating

Combining Supernovae and LSS Information with the CMB 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 Combining Supernovae and LSS Information with the CMB, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Combining Supernovae and LSS Information with the CMB will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-545016