Evolution of Elliptical Galaxies at z ≳ 1 Revealed from a Large, Multicolor Sample of Extremely Red Objects

Masayuki Miyazaki; Kazuhiro Shimasaku; Tadayuki Kodama; Sadanori Okamura; Hisanori Furusawa; Masami Ouchi; Fumiaki Nakata; Mamoru Doi; Masaru Hamabe; Masahiko Kimura; Yutaka Komiyama; Satoshi Miyazaki; Chie Nagashima; Tetsuya Nagata; Takahiro Nagayama; Yasushi Nakajima; Hidehiko Nakaya; Andrew J. Pickles; Shuji Sato; Kazuhiro Sekiguchi; Maki Sekiguchi; Koji Sugitani; Tadafumi Takata; Motohide Tamura; Masafumi Yagi; Naoki Yasuda

doi:10.1093/pasj/55.6.1079

Evolution of Elliptical Galaxies at z ≳ 1 Revealed from a Large, Multicolor Sample of Extremely Red Objects

Masayuki Miyazaki, Kazuhiro Shimasaku, Tadayuki Kodama, Sadanori Okamura, Hisanori Furusawa, Masami Ouchi, Fumiaki Nakata, Mamoru Doi, Masaru Hamabe, Masahiko Kimura, Yutaka Komiyama, Satoshi Miyazaki, Chie Nagashima, Tetsuya Nagata, Takahiro Nagayama, Yasushi Nakajima, Hidehiko Nakaya, Andrew J. Pickles, Shuji Sato, Kazuhiro SekiguchiMaki Sekiguchi, Koji Sugitani, Tadafumi Takata, Motohide Tamura, Masafumi Yagi, Naoki Yasuda

SCI - Astronomy

Research output: Contribution to journal › Article › peer-review

38 Citations (Scopus)

Abstract

We studied the evolution of elliptical galaxies at z ≳ 1 using a sample of 247 Extremely Red Objects (EROs) with R - K_s ≥ 3.35 (AB) and K_s ≤ 22.1 (AB) constructed from B V R i′ z′ J H K_s multicolor data of a 114 arcmin² area in the Subaru/XMM-Newton Deep Field taken with the Subaru Telescope and the UH 2.2 m telescope. By fitting template spectra of old galaxies (OGs) and young, dusty starbursts (DSs) to the multicolor data, we classified EROs into these two classes and estimated their redshifts. We found that 58% of the EROs in our sample belong to the OG class and that these OGs have a wide range of colors at any redshift. We derived rest-frame B-band luminosity functions of OGs in our sample at z = 1-1.5 and 1.5-2.5, and found that the number density of galaxies obeying passive evolution drops at z ≳ 1.5 by a factor of three or more. The spatial correlation length of OGs is estimated to be r₀ ≳ 8 h^-1 Mpc, which is comparable to, or larger than, those of present-day early-type galaxies of similar luminosities. We also discussed properties of DSs in our data.

Original language	English
Pages (from-to)	1079-1103
Number of pages	25
Journal	Publications of the Astronomical Society of Japan
Volume	55
Issue number	6
DOIs	https://doi.org/10.1093/pasj/55.6.1079
Publication status	Published - 2003

Keywords

Galaxies: elliptical and lenticular, cD
Galaxies: evolution
Galaxies: photometry

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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Miyazaki, M., Shimasaku, K., Kodama, T., Okamura, S., Furusawa, H., Ouchi, M., Nakata, F., Doi, M., Hamabe, M., Kimura, M., Komiyama, Y., Miyazaki, S., Nagashima, C., Nagata, T., Nagayama, T., Nakajima, Y., Nakaya, H., Pickles, A. J., Sato, S., ... Yasuda, N. (2003). Evolution of Elliptical Galaxies at z ≳ 1 Revealed from a Large, Multicolor Sample of Extremely Red Objects. Publications of the Astronomical Society of Japan, 55(6), 1079-1103. https://doi.org/10.1093/pasj/55.6.1079

Evolution of Elliptical Galaxies at z ≳ 1 Revealed from a Large, Multicolor Sample of Extremely Red Objects. / Miyazaki, Masayuki; Shimasaku, Kazuhiro; Kodama, Tadayuki; Okamura, Sadanori; Furusawa, Hisanori; Ouchi, Masami; Nakata, Fumiaki; Doi, Mamoru; Hamabe, Masaru; Kimura, Masahiko; Komiyama, Yutaka; Miyazaki, Satoshi; Nagashima, Chie; Nagata, Tetsuya; Nagayama, Takahiro; Nakajima, Yasushi; Nakaya, Hidehiko; Pickles, Andrew J.; Sato, Shuji; Sekiguchi, Kazuhiro; Sekiguchi, Maki; Sugitani, Koji; Takata, Tadafumi; Tamura, Motohide; Yagi, Masafumi; Yasuda, Naoki.

In: Publications of the Astronomical Society of Japan, Vol. 55, No. 6, 2003, p. 1079-1103.

Research output: Contribution to journal › Article › peer-review

Miyazaki, M, Shimasaku, K, Kodama, T, Okamura, S, Furusawa, H, Ouchi, M, Nakata, F, Doi, M, Hamabe, M, Kimura, M, Komiyama, Y, Miyazaki, S, Nagashima, C, Nagata, T, Nagayama, T, Nakajima, Y, Nakaya, H, Pickles, AJ, Sato, S, Sekiguchi, K, Sekiguchi, M, Sugitani, K, Takata, T, Tamura, M, Yagi, M & Yasuda, N 2003, 'Evolution of Elliptical Galaxies at z ≳ 1 Revealed from a Large, Multicolor Sample of Extremely Red Objects', Publications of the Astronomical Society of Japan, vol. 55, no. 6, pp. 1079-1103. https://doi.org/10.1093/pasj/55.6.1079

Miyazaki, Masayuki ; Shimasaku, Kazuhiro ; Kodama, Tadayuki ; Okamura, Sadanori ; Furusawa, Hisanori ; Ouchi, Masami ; Nakata, Fumiaki ; Doi, Mamoru ; Hamabe, Masaru ; Kimura, Masahiko ; Komiyama, Yutaka ; Miyazaki, Satoshi ; Nagashima, Chie ; Nagata, Tetsuya ; Nagayama, Takahiro ; Nakajima, Yasushi ; Nakaya, Hidehiko ; Pickles, Andrew J. ; Sato, Shuji ; Sekiguchi, Kazuhiro ; Sekiguchi, Maki ; Sugitani, Koji ; Takata, Tadafumi ; Tamura, Motohide ; Yagi, Masafumi ; Yasuda, Naoki. / Evolution of Elliptical Galaxies at z ≳ 1 Revealed from a Large, Multicolor Sample of Extremely Red Objects. In: Publications of the Astronomical Society of Japan. 2003 ; Vol. 55, No. 6. pp. 1079-1103.

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abstract = "We studied the evolution of elliptical galaxies at z ≳ 1 using a sample of 247 Extremely Red Objects (EROs) with R - Ks ≥ 3.35 (AB) and Ks ≤ 22.1 (AB) constructed from B V R i′ z′ J H Ks multicolor data of a 114 arcmin2 area in the Subaru/XMM-Newton Deep Field taken with the Subaru Telescope and the UH 2.2 m telescope. By fitting template spectra of old galaxies (OGs) and young, dusty starbursts (DSs) to the multicolor data, we classified EROs into these two classes and estimated their redshifts. We found that 58% of the EROs in our sample belong to the OG class and that these OGs have a wide range of colors at any redshift. We derived rest-frame B-band luminosity functions of OGs in our sample at z = 1-1.5 and 1.5-2.5, and found that the number density of galaxies obeying passive evolution drops at z ≳ 1.5 by a factor of three or more. The spatial correlation length of OGs is estimated to be r0 ≳ 8 h-1 Mpc, which is comparable to, or larger than, those of present-day early-type galaxies of similar luminosities. We also discussed properties of DSs in our data.",

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AU - Miyazaki, Masayuki

AU - Shimasaku, Kazuhiro

AU - Kodama, Tadayuki

AU - Okamura, Sadanori

AU - Furusawa, Hisanori

AU - Ouchi, Masami

AU - Nakata, Fumiaki

AU - Doi, Mamoru

AU - Hamabe, Masaru

AU - Kimura, Masahiko

AU - Komiyama, Yutaka

AU - Miyazaki, Satoshi

AU - Nagashima, Chie

AU - Nagata, Tetsuya

AU - Nagayama, Takahiro

AU - Nakajima, Yasushi

AU - Nakaya, Hidehiko

AU - Pickles, Andrew J.

AU - Sato, Shuji

AU - Sekiguchi, Kazuhiro

AU - Sekiguchi, Maki

AU - Sugitani, Koji

AU - Takata, Tadafumi

AU - Tamura, Motohide

AU - Yagi, Masafumi

AU - Yasuda, Naoki

PY - 2003

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KW - Galaxies: evolution

KW - Galaxies: photometry

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