An extragalactic spectroscopic survey of the SSA22 field

C. Saez; B. D. Lehmer; F. E. Bauer; D. Stern; A. Gonzales; I. Rreza; D. M. Alexander; Y. Matsuda; J. E. Geach; F. A. Harrison; T. Hayashino

doi:10.1093/mnras/stv747

An extragalactic spectroscopic survey of the SSA22 field

C. Saez, B. D. Lehmer, F. E. Bauer, D. Stern, A. Gonzales, I. Rreza, D. M. Alexander, Y. Matsuda, J. E. Geach, F. A. Harrison, T. Hayashino

Centre for Astrophysics Research (CAR)

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Abstract

We present Very Large Telescope VIMOS, Keck DEIMOS and Keck LRIS multi-object spectra of 367 sources in the field of the z ≈ 3.09 protocluster SSA22. Sources are spectroscopically classified via template matching, allowing new identifications for 206 extragalactic sources, including 36 z > 2 Lyman-break galaxies (LBGs) and Lyman α emitters (LAEs), eight protocluster members, and 94 X-ray sources from the ~400 ks Chandra deep survey of SSA22. Additionally, in the area covered by our study, we have increased by ≈4, 13, and 6 times the number of reliable redshifts of sources at 1.0 < z < 2.0, at z > 3.4, and with X-ray emission, respectively. We compare our results with past spectroscopic surveys of SSA22 to investigate the completeness of the LBGs and theX-ray properties of the newspectroscopically classified sources in the SSA22 field.

Original language	English
Pages (from-to)	2615-2630
Number of pages	16
Journal	Monthly Notices of the Royal Astronomical Society
Volume	450
Issue number	3
Early online date	7 May 2015
DOIs	https://doi.org/10.1093/mnras/stv747
Publication status	Published - 1 Jul 2015

Keywords

Galaxies: active
Galaxies: clusters: general
Surveys
Techniques: imaging spectroscopy
X-rays: galaxies

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10.1093/mnras/stv747

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title = "An extragalactic spectroscopic survey of the SSA22 field",

abstract = "We present Very Large Telescope VIMOS, Keck DEIMOS and Keck LRIS multi-object spectra of 367 sources in the field of the z ≈ 3.09 protocluster SSA22. Sources are spectroscopically classified via template matching, allowing new identifications for 206 extragalactic sources, including 36 z > 2 Lyman-break galaxies (LBGs) and Lyman α emitters (LAEs), eight protocluster members, and 94 X-ray sources from the ~400 ks Chandra deep survey of SSA22. Additionally, in the area covered by our study, we have increased by ≈4, 13, and 6 times the number of reliable redshifts of sources at 1.0 < z < 2.0, at z > 3.4, and with X-ray emission, respectively. We compare our results with past spectroscopic surveys of SSA22 to investigate the completeness of the LBGs and theX-ray properties of the newspectroscopically classified sources in the SSA22 field.",

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AU - Saez, C.

AU - Lehmer, B. D.

AU - Bauer, F. E.

AU - Stern, D.

AU - Gonzales, A.

AU - Rreza, I.

AU - Alexander, D. M.

AU - Matsuda, Y.

AU - Geach, J. E.

AU - Harrison, F. A.

AU - Hayashino, T.

N1 - This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society. © 2015 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society.

PY - 2015/7/1

Y1 - 2015/7/1

N2 - We present Very Large Telescope VIMOS, Keck DEIMOS and Keck LRIS multi-object spectra of 367 sources in the field of the z ≈ 3.09 protocluster SSA22. Sources are spectroscopically classified via template matching, allowing new identifications for 206 extragalactic sources, including 36 z > 2 Lyman-break galaxies (LBGs) and Lyman α emitters (LAEs), eight protocluster members, and 94 X-ray sources from the ~400 ks Chandra deep survey of SSA22. Additionally, in the area covered by our study, we have increased by ≈4, 13, and 6 times the number of reliable redshifts of sources at 1.0 < z < 2.0, at z > 3.4, and with X-ray emission, respectively. We compare our results with past spectroscopic surveys of SSA22 to investigate the completeness of the LBGs and theX-ray properties of the newspectroscopically classified sources in the SSA22 field.

AB - We present Very Large Telescope VIMOS, Keck DEIMOS and Keck LRIS multi-object spectra of 367 sources in the field of the z ≈ 3.09 protocluster SSA22. Sources are spectroscopically classified via template matching, allowing new identifications for 206 extragalactic sources, including 36 z > 2 Lyman-break galaxies (LBGs) and Lyman α emitters (LAEs), eight protocluster members, and 94 X-ray sources from the ~400 ks Chandra deep survey of SSA22. Additionally, in the area covered by our study, we have increased by ≈4, 13, and 6 times the number of reliable redshifts of sources at 1.0 < z < 2.0, at z > 3.4, and with X-ray emission, respectively. We compare our results with past spectroscopic surveys of SSA22 to investigate the completeness of the LBGs and theX-ray properties of the newspectroscopically classified sources in the SSA22 field.

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KW - Galaxies: clusters: general

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KW - Techniques: imaging spectroscopy

KW - X-rays: galaxies

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An extragalactic spectroscopic survey of the SSA22 field

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