An Extragalactic Spectroscopic Survey of the SSA22 Field

Abstract

We present VLT 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), 8 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.

27 pages, 14 figures, 6 tables. Paper has been accepted for publication in MNRAS

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Cited by in corpus (18)

• Gas filaments of the cosmic web located around active galaxies in a proto-cluster
• The KMOS AGN Survey at High redshift (KASHz): the prevalence and drivers of ionised outflows in the host galaxies of X-ray AGN
• The nature of luminous Lyman-alpha emitters at z~2-3: maximal dust-poor starbursts and highly ionising AGN
• Enhancement of AGN in a protocluster at z=1.6
• Lyman continuum leaking AGN in the SSA22 field
• The clustering of typical Ly$\alpha$ emitters from $z\sim 2.5-6$: host halo masses depend on Ly$\alpha$ and UV luminosities
• Deciphering Lyman $\alpha$ blob 1 with deep MUSE observations
• ALMA Deep Field in SSA22: Survey Design and Source Catalog of a 20 arcmin^2 Survey at 1.1mm
• Data mining techniques on astronomical spectra data. II : Classification Analysis
• An extremely dense group of massive galaxies at the centre of the protocluster at z = 3.09 in the SSA22 field
• Confirmation of double peaked Lyman-alpha emission at z=6.593: Witnessing a galaxy directly contributing to the reionisation of the Universe
• Deep submillimeter and radio observations in the SSA22 field. I. Powering sources and Lyα escape fraction of Lyα blobs
• ALMA observations of a z~3.1 Protocluster: Star Formation from Active Galactic Nuclei and Lyman-Alpha Blobs in an Overdense Environment
• On the Nature of AGN and Star Formation Enhancement in the $z=3.1$ SSA22 Protocluster: The HST WFC3 IR View
• Revisiting the Properties of X-ray AGN in the SSA22 Protocluster: Normal SMBH and Host-Galaxy Growth for AGN in a $z=3.09$ Overdensity
• Imaging of diffuse HI absorption structure in the SSA22 proto-cluster region at z = 3.1
• Enhancement of HI absorption associated with the $z=3.1$ large-scale proto-cluster and characteristic structures with AGNs sculptured over Gpc scale in the SSA22 field
• X-ray Sources in the SSA22 Chandra Field