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Galaxy groups and protocluster candidates in the CLAUDS and HSC-SSP joint deep surveys - MaRDI portal

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Galaxy groups and protocluster candidates in the CLAUDS and HSC-SSP joint deep surveys

From MaRDI portal



DOI10.5281/zenodo.6516482Zenodo6516482MaRDI QIDQ6718426

Dataset published at Zenodo repository.

Author name not available (Why is that?)

Publication date: 4 May 2022

Copyright license: No records found.



Description

Using the extended halo-based group finder developed by Yang et al. 2021, which is able to deal with galaxies via spectroscopic and photometric redshifts simultaneously, we (Li et al. 2022) construct galaxy group and candidate protocluster catalogs in a wide redshift range (\(0 z 6\)) from the joint CFHT Large Area U-band Deep Survey (CLAUDS) and Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) deep data set. Based on a selection of 5,607,052 galaxies with i-band magnitude mi 26 and a sky coverage of 34.41 deg2, we identify a total of 2,232,134 groups, within which 402,947 groups have at least three member galaxies. By checking the galaxy number distributions within a 5-7 h-1Mpc projected separation and a redshift difference \(\Delta z \leq 0.1\) around those richest groups at redshift \(z 2\), we identified a list of 761, 343 and 43 protocluster candidates in the redshift bins\(2 \leq z 3\),\(3 \leq z 4\)and \(z 4\), respectively. More details can be found inour paper (arXiv: 2205.05517).Our catalogs are also shared at https://gax.sjtu.edu.cn/data/PFS.html.






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