Constraining cosmic reionization with quasar, gamma ray burst, and Lya emitter observations

Details Constraining cosmic reionization with quasar, gamma ray burst, and Lya emitter observations Constraining cosmic reionization with quasar, gamma ray burst, and Lya emitter observations

2009-12-14

arxiv.org/abs/0912.2693v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

4 pages, 4 figures, to appear in the Proceedings `L'Universo quattro secoli dopo Galileo', 53rd Congresso SAIt, Pisa, May 2009

Scientific paper

We investigate the cosmic reionization history by comparing semi-analytical models of the Lya forest with observations of high-z quasars and gamma ray bursts absorption spectra. In order to constrain the reionization epoch z_rei, we consider two physically motivated scenarios in which reionization ends either early (ERM, z_rei>= 7) or late (LRM, z_rei~6). We analyze the transmitted flux in a sample of 17 quasars spectra at 5.7=11 and completes at z_rei>=7, in agreement with the recent WMAP5 data.

Affiliated with

Also associated with

No associations

Rating

Constraining cosmic reionization with quasar, gamma ray burst, and Lya emitter observations 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 Constraining cosmic reionization with quasar, gamma ray burst, and Lya emitter observations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Constraining cosmic reionization with quasar, gamma ray burst, and Lya emitter observations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-624870