2005/10/20 by Yoshiaki Taniguchi, Taniguchi, Y., T. Nagao +9
Physics and Astronomy · #Adaptive optics and wavefront sensing #Astronomy and Astrophysical Research #Astrophysics (astro-ph) #FOS: Physical sciences #Scientific Research and Discoveries
paper · pdf · doi:10.48550/arxiv.astro-ph/0510601
openalex publication_date 2005/10/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We discuss on the early stage of galaxy formation based on recent deep surveys for very high-redshift galaxies, mostly beyond redshift of 6. These galaxies are observed to be strong Lymanα emitters, indicating bursts of massive star formation in them. The fraction of such star-forming system appears to increase with increasing redshift. On the other hand, the star formation rate density derived from Lymanα emitters tends to decrease with increasing redshift. It is thus suggested that the major epoch of initial starbursts may occur around z ∼ 6 -- 7. In order to understand the early stage of galaxy formation, new surveys for galaxies beyond redshift of 7 will be important in near future.