2021AJ....161..249H


Query : 2021AJ....161..249H

2021AJ....161..249H - Astron. J., 161, 249-249 (2021/May-0)

A careful reassessment of globular cluster multiple population radial distributions with Sloan Digital Sky Survey and Johnson-cousins broadband photometry.

HOOGENDAM W.B. and SMOLINSKI J.P.

Abstract (from CDS):

Inconsistencies regarding the nature of globular cluster (GC) multiple population radial distributions is a matter for concern given their role in testing or validating cluster dynamical evolution modeling. In this study, we present a reanalysis of eight GC radial distributions using publicly available ground-based ugriz and UBVRI photometry; correcting for a systematic error identified in the literature. We detail the need for including and considering not only Kolmogorov-Smirnov (K-S) probabilities but critical K-S statistic values as well when drawing conclusions from radial distributions, as well as the impact of sample incompleteness. Revised cumulative radial distributions are presented, and the literature of each cluster is reviewed to provide a fuller picture of our results. We find that many multiple populations are not as segregated as once thought, and that there is a pressing need for better understanding of the spatial distributions of multiple populations in GCs.

Abstract Copyright: © 2021. The American Astronomical Society. All rights reserved.

Journal keyword(s): Globular star clusters - Broad band photometry - Red giant branch - Hertzsprung Russell diagram - Dynamical evolution

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 - 2024
#notes
1 NGC 2419 GlC 07 38 08.51 +38 52 54.9     10.05     ~ 932 0
2 M 53 GlC 13 12 55.25 +18 10 05.4     7.79     ~ 836 0
3 M 3 GlC 13 42 11.62 +28 22 38.2     6.39     ~ 2479 0
4 NGC 5466 GlC 14 05 27.29 +28 32 04.0     9.70     ~ 828 0
5 M 5 GlC 15 18 33.22 +02 04 51.7     5.95     ~ 1978 0
6 M 13 GlC 16 41 41.634 +36 27 40.75     5.8     ~ 2193 0
7 M 92 GlC 17 17 07.39 +43 08 09.4     6.52     ~ 2116 0
8 NGC 6752 GlC 19 10 52.11 -59 59 04.4           ~ 2001 0
9 M 15 GlC 21 29 58.33 +12 10 01.2           ~ 3140 0
10 M 2 GlC 21 33 27.02 -00 49 23.7     6.25     ~ 1030 1

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