Publication Date:
2015-05-10
Description:
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 the X-ray properties of the new spectroscopically classified sources in the SSA22 field.
Print ISSN:
0035-8711
Electronic ISSN:
1365-2966
Topics:
Physics
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