2025MNRAS.541.1002M

Query : 2025MNRAS.541.1002M

2025MNRAS.541.1002M - Mon. Not. R. Astron. Soc., 541, 1002-1015 (2025/August-1)

Demography and morphological evolution of red spirals and S0s in groups and clusters.

MORAIS-NETO F.R., RIBEIRO A.L.B., LOPES P.A.A., MORELL D.F. and NASCIMENTO L.N.S.

Abstract (from CDS):

In this study, we analyse a sample of 4228 galaxies in groups and clusters to understand the morphological changes during their infall into these systems. We introduce a new classification method that combines the second gradient moment (G $_2$ ) and Shannon entropy (H) with the T-Type parameter, identifying early, late, and transitional types. Our findings reveal that transitional galaxies, comprising 24 per cent of the sample, predominantly occupy intermediate regions in the projected phase space, suggesting times since infall between 3.6 and 6.5 Gyr. These galaxies, mainly red spirals with enlarged bulges and high metallicities, are prevalent in groups, indicating significant evolutionary activity in systems with M $_{200} \le 10^{14}$ M $_\odot$ , where 63 per cent of transitional galaxies are located. Our results suggest a two-step evolutionary pathway: disc galaxies develop enhanced bulges and suppressed star formation, evolving into red spirals and subsequently into lenticulars, with metallicity enrichment and structural reconfiguration accompanying this process. These findings provide new insights into how environmental mechanisms drive galaxy evolution.

Abstract Copyright: © The Author(s) 2025. Published by Oxford University Press on behalf of Royal Astronomical Society.

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

Simbad objects: 1

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Number of rows : 1

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	ZwCl 0024+1652	ClG	00 26 35.6	+17 09 32			18.35			~	648	1

Query : 2025MNRAS.541.1002M

Basic data :

ZwCl 0024+1652 -- Cluster of Galaxies

ClG (2012MNRAS,ZwCl,...), gLe (2001ApJ), X (2E,XMMU), C?G (XCLASS)

00 26 35.6 +17 09 32 (X-ray) [ ] E 2021A&A...652A..12K

00 23 59.6 +16 52 56 [ ]

114.4800 -45.3047 [ ]

V(km/s) 96269 [~] / z(spectroscopic) 0.3950 [~] / cz 118418 [~] (Opt) D 2021A&A...652A..12K

4.55 4.55 0 (Xray) E 2016MNRAS.463.1929M

V 18.35 [~] E ~

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`ZwCl 0024+1652`	`ClG 0024+17`	`2E 0024.0+1653`	`XMMXCS J002635.9+170930.7`
`ACT-CL J0026.5+1709`	`ClG 0024.0+1654`	`2E 87`	`XMMXCS J002635.8+170930.5`
`BAX 006.6500+17.1434`	`ClG 0024.0+1652`	`HMS 0024+1654`	`ZwCl 457-28`
`ClG 0024+16`	`ClG 0024+1652`	`XCLASS 377`	`[F81] 13`
`ClG 0024+1654`	`ClG 0024.5+1653`	`XMMU J002635.5+170932`	`[RRB2014] RM J002635.7+170943.1`

References (648 between 1850 and 2026) (Total 648)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

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2E 87

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