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Large scale profiles of galaxies at z=0-2 studied by stacking the HSC SSP survey data

Published online by Cambridge University Press:  21 March 2017

Mariko Kubo ,
Masami Ouchi  and
Takatoshi Shibuya
Mariko Kubo
Affiliation:
Institute for Cosmic Ray Research, The University of Tokyo, 5-1-5 Kashiwa-no-Ha, Kashiwa-shi, Chiba, Japan email: [email protected] National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka-shi, Tokyo, Japan
Masami Ouchi
Affiliation:
Institute for Cosmic Ray Research, The University of Tokyo, 5-1-5 Kashiwa-no-Ha, Kashiwa-shi, Chiba, Japan email: [email protected] National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka-shi, Tokyo, Japan
Takatoshi Shibuya
Affiliation:
Institute for Cosmic Ray Research, The University of Tokyo, 5-1-5 Kashiwa-no-Ha, Kashiwa-shi, Chiba, Japan email: [email protected]
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Abstract

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We are carrying out the study of the evolution of radial surface brightness profiles of galaxies from z = 0 to 2 by stacking analysis using data corrected by the Hyper Suprime-Cam (HSC) Subaru Strategic Program (SSP). This will allow us to constrain the large scale average profiles of various galaxy populations at high redshift. From the stacking analysis of galaxies selected based on their photometric redshifts, we successfully detected the outer components of galaxies at z > 1 extending to at least ~80 kpc, which imply an early formation for the galaxy outskirts.

Keywords

galaxies: evolutiongalaxies: halosgalaxies: high-redshift
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S321: Formation and Evolution of Galaxy Outskirts , March 2016 , pp. 318 - 320
Copyright
Copyright © International Astronomical Union 2017 

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