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

Contributed Papers
© International Astronomical Union 2020


Franck, J. R. & McGaugh, S. S. 2016, ApJ, 817, 15810.3847/0004-637X/817/2/158CrossRefGoogle Scholar
Krogager, J.-K., Møller, P., Fynbo, J. P. U., & Noterdaeme, P. 2017, A&A, 469, 2959Google Scholar
Noterdaeme, P., Petitjean, P., Carithers, W. C., Pâris, I., Font-Ribera, A., Bailey, S., Aubourg, E., Bizyaev, D., et al. 2012, A&A, 547, L1Google Scholar
Noterdaeme, P., Petitjean, P., Ledoux, C., & Srianand, R. 2009, A&A, 505, 1087Google Scholar
Ogura, K., Nagao, T., Imanishi, M., Kashikawa, N., Taniguchi, Y., Kajisawa, M., Kobayasi, M. A. R., Toba, Y., Nobuhara, K., et al. 2017, PASJ, 69, 5110.1093/pasj/psx027CrossRefGoogle Scholar
Overzier, R. A. 2016, A&AR, 24, 14Google Scholar
Wolfe, A. M., Gawiser, E., & Prochaska, J. X. 2005, ARA&A, 43, 86110.1146/annurev.astro.42.053102.133950CrossRefGoogle Scholar