In:
The Astrophysical Journal, American Astronomical Society, Vol. 933, No. 1 ( 2022-07-01), p. 9-
Abstract:
Using the extended halo-based group finder developed by Yang et al., which is able to deal with galaxies via spectroscopic and photometric redshifts simultaneously, we 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 and Hyper Suprime-Cam Subaru Strategic Program deep data set. Based on a selection of 5,607,052 galaxies with i -band magnitude m i 〈 26 and a sky coverage of 34.41 deg 2 , we identify a total of 2,232,134 groups, of which 402,947 groups have at least three member galaxies. We have visually checked and discussed the general properties of these richest groups at redshift z 〉 2.0. By checking the galaxy number distributions within a 5–7 h −1 Mpc projected separation and a redshift difference Δ z ≤ 0.1 around those richest groups at redshift z 〉 2, we identify lists of 761, 343, and 43 protocluster candidates in the redshift bins 2 ≤ z 〈 3, 3 ≤ z 〈 4, and z ≥ 4, respectively. In general, these catalogs of galaxy groups and protocluster candidates will provide useful environmental information in probing galaxy evolution along cosmic time.
Type of Medium:
Online Resource
ISSN:
0004-637X
,
1538-4357
DOI:
10.3847/1538-4357/ac6e69
Language:
Unknown
Publisher:
American Astronomical Society
Publication Date:
2022
detail.hit.zdb_id:
2207648-7
detail.hit.zdb_id:
1473835-1
SSG:
16,12
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