A massive disk galaxy at z > 3 along the line of sight of QSO 1508+5714

Yiping Wang; Toru Yamada; Ichi Tanaka; Masanori Iye

doi:10.1093/pasj/61.5.1179

A massive disk galaxy at z > 3 along the line of sight of QSO 1508+5714

Yiping Wang, Toru Yamada, Ichi Tanaka, Masanori Iye

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

Abstract

We have obtained deep images in the BVRIJHKs bands of the field centered on QSO 1508+5714 (z_em = 4.28) with the Suprime-Cam, FOCAS, and MOIRCS cameras on Subaru telescope. We report here on the detection of a B-dropout galaxy, which is 3.″5 north-west of the QSO sightline. A photometric redshift analysis is presented to complement the color selection. Given the photometric properties of this object (M = -22.2, making L ≈ 3 L ^*, if placed at its photometric redshift, z ∼ 3.5), as well as the Sérsic index (n ∼ 1) derived from a 2-D imaging decomposition of the HST WFPC2 image taken with the I_f814 filter, the identified system is consistent with a massive disk galaxy at z > 3. If confirmed, it would be one of the most distant massive disk galaxies known so far.

Original language	English
Pages (from-to)	1179-1184
Number of pages	6
Journal	Publications of the Astronomical Society of Japan
Volume	61
Issue number	5
DOIs	https://doi.org/10.1093/pasj/61.5.1179
Publication status	Published - 2009
Externally published	Yes

Keywords

Galaxies: formation
Galaxies: high redshift-quasars: individual (QSO 1508+5714)
Intergalactic medium

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1093/pasj/61.5.1179

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title = "A massive disk galaxy at z > 3 along the line of sight of QSO 1508+5714",

abstract = "We have obtained deep images in the BVRIJHKs bands of the field centered on QSO 1508+5714 (zem = 4.28) with the Suprime-Cam, FOCAS, and MOIRCS cameras on Subaru telescope. We report here on the detection of a B-dropout galaxy, which is 3.″5 north-west of the QSO sightline. A photometric redshift analysis is presented to complement the color selection. Given the photometric properties of this object (M = -22.2, making L ≈ 3 L *, if placed at its photometric redshift, z ∼ 3.5), as well as the S{\'e}rsic index (n ∼ 1) derived from a 2-D imaging decomposition of the HST WFPC2 image taken with the If814 filter, the identified system is consistent with a massive disk galaxy at z > 3. If confirmed, it would be one of the most distant massive disk galaxies known so far.",

keywords = "Galaxies: formation, Galaxies: high redshift-quasars: individual (QSO 1508+5714), Intergalactic medium",

author = "Yiping Wang and Toru Yamada and Ichi Tanaka and Masanori Iye",

year = "2009",

doi = "10.1093/pasj/61.5.1179",

language = "English",

volume = "61",

pages = "1179--1184",

journal = "Publications of the Astronomical Society of Japan",

issn = "0004-6264",

publisher = "Astronomical Society of Japan",

number = "5",

}

TY - JOUR

T1 - A massive disk galaxy at z > 3 along the line of sight of QSO 1508+5714

AU - Wang, Yiping

AU - Yamada, Toru

AU - Tanaka, Ichi

AU - Iye, Masanori

PY - 2009

Y1 - 2009

N2 - We have obtained deep images in the BVRIJHKs bands of the field centered on QSO 1508+5714 (zem = 4.28) with the Suprime-Cam, FOCAS, and MOIRCS cameras on Subaru telescope. We report here on the detection of a B-dropout galaxy, which is 3.″5 north-west of the QSO sightline. A photometric redshift analysis is presented to complement the color selection. Given the photometric properties of this object (M = -22.2, making L ≈ 3 L *, if placed at its photometric redshift, z ∼ 3.5), as well as the Sérsic index (n ∼ 1) derived from a 2-D imaging decomposition of the HST WFPC2 image taken with the If814 filter, the identified system is consistent with a massive disk galaxy at z > 3. If confirmed, it would be one of the most distant massive disk galaxies known so far.

AB - We have obtained deep images in the BVRIJHKs bands of the field centered on QSO 1508+5714 (zem = 4.28) with the Suprime-Cam, FOCAS, and MOIRCS cameras on Subaru telescope. We report here on the detection of a B-dropout galaxy, which is 3.″5 north-west of the QSO sightline. A photometric redshift analysis is presented to complement the color selection. Given the photometric properties of this object (M = -22.2, making L ≈ 3 L *, if placed at its photometric redshift, z ∼ 3.5), as well as the Sérsic index (n ∼ 1) derived from a 2-D imaging decomposition of the HST WFPC2 image taken with the If814 filter, the identified system is consistent with a massive disk galaxy at z > 3. If confirmed, it would be one of the most distant massive disk galaxies known so far.

KW - Galaxies: formation

KW - Galaxies: high redshift-quasars: individual (QSO 1508+5714)

KW - Intergalactic medium

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DO - 10.1093/pasj/61.5.1179

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SN - 0004-6264

VL - 61

SP - 1179

EP - 1184

JO - Publications of the Astronomical Society of Japan

JF - Publications of the Astronomical Society of Japan

IS - 5

ER -

A massive disk galaxy at z > 3 along the line of sight of QSO 1508+5714

Abstract

Keywords

ASJC Scopus subject areas

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