2018MNRAS.479.2328O

Query : 2018MNRAS.479.2328O

2018MNRAS.479.2328O - Mon. Not. R. Astron. Soc., 479, 2328-2350 (2018/September-2)

Galaxy pre-processing in substructures around z ∼ 0.4 galaxy clusters.

OLAVE-ROJAS D., CERULO P., DEMARCO R., JAFFE Y.L., MERCURIO A., ROSATI P., BALESTRA I. and NONINO M.

Abstract (from CDS):

We present a detailed analysis of galaxy colours in two galaxy clusters at z ∼ 0.4, MACS J0416.1 - 2403 and MACS J1206.2 - 0847, drawn from the CLASH-VLT survey, to investigate the role of pre-processing in the quenching of star formation. We estimate the fractions of red and blue galaxies within the main cluster and the detected substructures and study the trends of the colour fractions as a function of the projected distance from the cluster and substructure centres. Our results show that the colours of cluster and substructure members have consistent spatial distributions. In particular, the colour fractions of galaxies inside substructures follow the same spatial trends observed in the main clusters. Additionally, we find that at large cluster-centric distances (r >= r200) the fraction of blue galaxies in both the main clusters and in the substructures is always lower than the average fraction of UVJ-selected star-forming galaxies in the field as measured in the COSMOS/UltraVista data set. We finally estimate environmental quenching efficiencies in the clusters and in the substructures and find that at large distances from the cluster centres, the quenching efficiency of substructures becomes comparable to the quenching efficiency of clusters. Our results suggest that pre-processing plays a significant role in the formation and evolution of passive galaxies in clusters at low redshifts.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: clusters: general - galaxies: evolution - galaxies: groups: general

Nomenclature: Fig. 2, Table 3: [OCD2018] MACS J0416 NN (Nos 1-15), [OCD2018] MACS J1206 NN (Nos 1-11).

Simbad objects: 29

goto Full paper

goto View the references in ADS

Number of rows : 29
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 [OCD2018] MACS J0416 6 GrG 04 15 20.70 -23 54 18.0           ~ 1 0
2 [OCD2018] MACS J0416 8 GrG 04 15 25.20 -23 53 51.8           ~ 1 0
3 [OCD2018] MACS J0416 1 GrG 04 15 39.30 -24 08 50.6           ~ 1 0
4 [OCD2018] MACS J0416 9 GrG 04 15 41.60 -24 08 54.1           ~ 1 0
5 [OCD2018] MACS J0416 10 GrG 04 15 50.30 -23 56 22.0           ~ 1 0
6 [OCD2018] MACS J0416 4 GrG 04 15 58.70 -24 03 07.4           ~ 1 0
7 [OCD2018] MACS J0416 13 GrG 04 16 07.30 -24 08 43.5           ~ 1 0
8 MCS J0416.1-2403 ClG 04 16 08.380 -24 04 20.80           ~ 425 0
9 [OCD2018] MACS J0416 12 GrG 04 16 10.20 -24 04 32.9           ~ 1 0
10 [OCD2018] MACS J0416 7 GrG 04 16 10.50 -24 03 45.5           ~ 1 0
11 [OCD2018] MACS J0416 2 GrG 04 16 11.80 -24 03 42.5           ~ 1 0
12 [OCD2018] MACS J0416 11 GrG 04 16 13.50 -23 55 54.0           ~ 1 0
13 [OCD2018] MACS J0416 3 GrG 04 16 17.20 -24 14 58.9           ~ 1 0
14 [OCD2018] MACS J0416 5 GrG 04 16 20.40 -24 12 51.2           ~ 1 0
15 [OCD2018] MACS J0416 14 GrG 04 16 21.40 -24 11 21.3           ~ 1 0
16 [OCD2018] MACS J0416 15 GrG 04 16 40.90 -24 04 45.5           ~ 1 0
17 NAME Coma Supercluster SCG 11 23 +23.9           ~ 291 0
18 [OCD2018] MACS J1206 8 GrG 12 05 32.40 -08 43 08.8           ~ 1 0
19 [OCD2018] MACS J1206 1 GrG 12 05 51.60 -08 41 18.4           ~ 1 0
20 [OCD2018] MACS J1206 9 GrG 12 05 58.80 -08 47 36.6           ~ 1 0
21 [OCD2018] MACS J1206 4 GrG 12 06 03.20 -08 48 13.5           ~ 1 0
22 MCS J1206.2-0847 ClG 12 06 12.2 -08 48 02           ~ 286 0
23 [OCD2018] MACS J1206 2 GrG 12 06 17.80 -08 44 01.7           ~ 1 0
24 [OCD2018] MACS J1206 6 GrG 12 06 20.80 -08 43 56.4           ~ 1 0
25 [OCD2018] MACS J1206 3 GrG 12 06 31.90 -08 44 56.6           ~ 1 0
26 [OCD2018] MACS J1206 11 GrG 12 06 33.20 -08 45 22.5           ~ 1 0
27 [OCD2018] MACS J1206 7 GrG 12 06 45.60 -08 37 41.4           ~ 1 0
28 [OCD2018] MACS J1206 10 GrG 12 06 49.20 -08 54 17.6           ~ 1 0
29 [OCD2018] MACS J1206 5 GrG 12 06 52.50 -08 54 12.3           ~ 1 0

To bookmark this query, right click on this link: simbad:objects in 2018MNRAS.479.2328O and select 'bookmark this link' or equivalent in the popup menu