Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aspc..393..127o&link_type=abstract
New Horizons in Astronomy: Frank N. Bash Symposium 2007 ASP Conference Series, Vol. 393, proceedings of the conference held 14-1
Astronomy and Astrophysics
Astronomy
Scientific paper
I review observational studies of galaxies at z˜ 4-10. Recent deep surveys push the limit of large telescopes, and aim to accomplish two major goals: (i) characterizing galaxy evolution in the cosmic time and (ii) understanding the history of reionization. Luminosity functions (LFs) of dropout galaxies and Lyα emitters (LAEs) indicate that a very young Lyα emitting population emerges at z˜ 6, while a number of post-starburst galaxies already exist at this epoch. The combination of theoretical models, LFs, and correlation functions of LAEs places upper limits on neutral fraction of inter-galactic medium which do not prefer beginning of reionization at z=6-7 but a moderate change of neutral hydrogen from z=6 to 7. Ambitious on-going projects search for galaxies beyond the current observational limit of z=7 in blank and nearby-cluster fields. These on-going searches not only extend the investigations of galaxies at z=3-7, but also become precursors of future studies that address questions about reionization history and first-generation stars at z˜ 10-20 with the upcoming very large telescopes, i.e., JWST and ELTs, in the 2010s.
No associations
LandOfFree
Exploring Galaxy Formation and Reionization Towards the Cosmic Dawn 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 Exploring Galaxy Formation and Reionization Towards the Cosmic Dawn, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exploring Galaxy Formation and Reionization Towards the Cosmic Dawn will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1690039