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Investigating the early phase of the galaxy evolution through high-z damped Lyα absorption systems

Published online by Cambridge University Press:  10 June 2020

Kazuyuki Ogura
Affiliation:
Faculty of Education, Bunkyo University, 3337 Minamiogishima, Koshigaya, Saitama, Japan email: ogurakz@koshigaya.bunkyo.ac.jp
Tohru Nagao
Affiliation:
Research Center for Space and Cosmic Evolution, Ehime University
Masatoshi Imanishi
Affiliation:
Optical and Infrared Astronomy Division, National Astronomical Observatory of Japan Department of Astronomy, School of Science, SOKENDAI
Nobunari Kashikawa
Affiliation:
Department of Astronomy, School of Science, The University of Tokyo
Yoshiaki Taniguchi
Affiliation:
The Open University of Japan
Masaru Kajisawa
Affiliation:
Graduate School of Science and Engineering, Ehime University
Masakazu A. R. Kobayashi
Affiliation:
Faculty of Natural Sciences, National Institute of Technology, Kure college
Yoshiki Toba
Affiliation:
Department of Astronomy, Kyoto University
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Abstract

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We present the physical properties of Lyα emitters (LAEs) in a “DLA-concentrated regions” where there are 3 or more DLA within (50 Mpc)3 cubic box. We observed LAEs in a DLA-concentrated region at z = 2.3, the J1230+34 field, with Subaru/Suprime-Cam. In the 50 Mpc scale, we found no deferences in properties of LAEs such as Lyα luminosity function in the DLA-concentrated region compared to other fields at similar redshift. On the other hand, we found a ∼10 Mpc scale LAE overdensity around a strong DLA with NHI = 1021.08 cm−2.

Type
Contributed Papers
Copyright
© International Astronomical Union 2020

References

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