An extragalactic spectroscopic survey of the SSA22 field

Saez, C., Lehmer, B. D., Bauer, F. E., Stern, D., Gonzales, A., Rreza, I., Alexander, D. M., Matsuda, Y., Geach, J. E., Harrison, F. A. and Hayashino, T. (2015) An extragalactic spectroscopic survey of the SSA22 field. Monthly Notices of the Royal Astronomical Society (MNRAS), 450 (3). pp. 2615-2630. ISSN 0035-8711

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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.

Item Type	Article
Additional information	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.
Keywords	galaxies: active, galaxies: clusters: general, surveys, techniques: imaging spectroscopy, x-rays: galaxies, astronomy and astrophysics, space and planetary science
Date Deposited	15 May 2025 13:23
Last Modified	31 May 2025 00:09