2024MNRAS.530.2907A


Query : 2024MNRAS.530.2907A

2024MNRAS.530.2907A - Mon. Not. R. Astron. Soc., 530, 2907-2918 (2024/May-3)

Beyond the rings: Polar ring galaxy NGC 4262 and its globular cluster system.

AKHIL K.R., KARTHA S.S. and MATHEW B.

Abstract (from CDS):

In the context of the hierarchical model of galaxy evolution, polar ring galaxies (PRGs) are considered the intermediate phase between ongoing mergers and quiescent galaxies. This study explores the globular cluster system (GCS) and its properties in the nearest PRG, NGC4262, serving as a pilot investigation to study GCS in nearby PRGs. We utilize wide and deep-field observations of the CFHT as part of the NGVS to investigate the GCS of NGC4262. We presented the first optical image of NGC4262 with an optically faint ring component. The photometric analysis of the GCS displays a distinct colour bimodality. We estimate the total number of GCs for NGC4262 to be 266 $\pm$ 16 GCs with a specific frequency of 4.2 $\pm$ 0.8 and a specific mass of 0.23 $\pm$ 0.01, which is relatively high compared to other galaxies of similar mass and environmental conditions. The spatial and azimuthal distributions of subpopulations reveal strong evidence of previous interactions within the host galaxy. The colour distribution of GCS in NGC4262 shows a gradient of -0.05 $\pm$ 0.01 within 5.5$^\prime$, supporting the notion of past interactions and evolutionary transitions. PRG NGC4262 conforms to the overall trend of the GCS mass with respect to the halo mass. Furthermore, our investigation of the global scaling relations between GCS and host galaxy parameters provides further support for the hypothesis that PRGs are an intermediate phase connecting ongoing mergers and quiescent galaxies.

Abstract Copyright: © 2024 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.

Journal keyword(s): galaxies: evolution - galaxies: haloes - galaxies: individual: NGC4262 - galaxies: peculiar - galaxies: star clusters: general - galaxies: structure

Simbad objects: 10

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Number of rows : 10
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 NGC 474 GiP 01 20 06.6870520512 +03 24 55.861973100 12.75 12.37 11.51 11.42 10.56 ~ 371 1
2 NGC 2865 GiG 09 23 30.205 -23 09 41.37   12.39 11.43 11.06   ~ 244 0
3 NGC 3610 GiG 11 18 25.2827189856 +58 47 10.433735988   11.4       ~ 327 0
4 NGC 4262 GiG 12 19 30.5694336288 +14 52 39.517143276 13.00 12.49 11.55     ~ 378 1
5 IC 781 GiG 12 20 03.2942086416 +14 57 41.415572916   14.8       ~ 72 0
6 M 85 GiP 12 25 24.053 +18 11 27.89   10.2       ~ 678 0
7 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
8 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
9 NGC 4546 Sy2 12 35 29.4931619736 -03 47 35.383858656 11.89 11.30 10.32     ~ 230 1
10 NGC 4753 GiG 12 52 22.112 -01 11 58.88 11.26 10.85 9.95     ~ 288 1

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