2025MNRAS.544..911O

Query : 2025MNRAS.544..911O

2025MNRAS.544..911O - Mon. Not. R. Astron. Soc., 544, 911-925 (2025/November-3)

The age and metallicity dependence of the near-infrared absolute magnitude and colour of red clump stars.

ONOZATO H., ITA Y. and NAKADA Y.

Abstract (from CDS):

Understanding the age and metallicity dependence of the absolute magnitude and colour of red clump (RC) stars is crucial for validating the accuracy of stellar evolution models and enhancing their reliability as a standard candle. However, this dependence has previously been investigated in the near-infrared across multiple bands only for -1.05 $\le$ [Fe/H] $\le$ 0.40, a range accessible through the star clusters in the Large Magellanic Cloud. Therefore, we used star clusters in the Small Magellanic Cloud and the Milky Way Galaxy to investigate the age and metallicity dependence of the absolute magnitude and colour of RC stars in the near-infrared for a broader parameter space (0.45 $\le$ Age (Gyr) $\le$ 10.5, -1.65 $\le$ [Fe/H] $\le$ 0.32). Comparison of our results with three isochrone models BaSTI, PARSEC, and MIST reveals that the age dependence of the absolute magnitude for young RC stars aligns well with theoretical predictions, within the fitting errors of the multiple regression analysis. Additionally, the observed colour shows good agreement with the theoretical models. Notably, the $J - K_{S}$ colour, which spans a wide parameter space, reproduces the distribution expected from the theoretical model.

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

Journal keyword(s): stars: distances - Hertzsprung-Russell and colour-magnitude diagrams - globular clusters: general - open clusters and associations: general - Magellanic Clouds

Simbad objects: 58

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Number of rows : 58
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 Cl Lindsay 1 Cl* 00 03 53.50 -73 28 15.0   11.7       ~ 125 0
2 ESO 28-15 OpC 00 21 27 -73 44.9   13.9       ~ 35 0
3 ESO 28-17 OpC 00 23 04 -73 40.2   15.3       ~ 32 0
4 Cl Lindsay 7 Cl* 00 24 43.16 -73 45 11.7   13.2       ~ 39 0
5 ESO 28-19 Cl* 00 24 45.98 -72 47 37.9   11.6 12.05     ~ 152 0
6 ESO 28-20 Cl* 00 25 26.60 -74 04 29.7 15.45 14.88 14.23   13.13 ~ 35 0
7 NGC 121 GlC 00 26 49.0 -71 32 10   11.2 11.24     ~ 330 0
8 ESO 28-22 OpC 00 27 45.17 -72 46 52.5 14.78 14.75 13.95   12.75 ~ 55 0
9 NAME Magellanic Stream HVC 00 32 -30.0           ~ 1079 1
10 NGC 152 OpC 00 32 56.76 -73 06 56.4 13.37 13.05 12.26   11.13 ~ 96 0
11 Cl Lindsay 19 Cl* 00 37 41.78 -73 54 19.7 13.70 14.78 13.18   12.17 ~ 36 0
12 Cl Lindsay 27 Cl* 00 41 23.83 -72 53 32.0 13.37 13.28 12.44   11.49 ~ 46 0
13 [RZ2005] 34 Cl* 00 42 59.87 -72 35 21.0 14.30 14.28 13.69   12.97 ~ 22 0
14 NGC 188 OpC 00 47 14.8 +85 14 42           ~ 990 0
15 Bruck 47 Cl* 00 48 33.23 -73 18 25.1           ~ 16 0
16 ESO 51-3 Cl* 00 48 50 -69 52.2   16.2       ~ 57 0
17 Cl Kron 28 OpC 00 51 39.55 -71 59 56.6 10.98 10.56 10.42   10.04 ~ 34 0
18 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
19 NGC 339 OpC 00 57 47.62 -74 28 14.6 13.23 12.94 12.21   11.20 ~ 157 0
20 Cl Kron 38 OpC 00 57 48 -73 25.3           ~ 16 0
21 [BS95] 90 Cl* 00 59 07.25 -72 08 59.1 12.94 13.01 12.25   11.88 ~ 31 0
22 Cl Kron 44 OpC 01 02 06.34 -73 55 22.7 14.05 13.73 12.95   11.82 ~ 45 0
23 NGC 361 OpC 01 02 11.11 -71 36 25.3 12.86 12.43 11.77   10.70 ~ 105 0
24 NGC 411 Cl* 01 07 55.64 -71 46 03.1 13.05 12.63 12.10   11.11 ~ 107 0
25 NGC 416 Cl* 01 07 59.03 -72 21 20.5 12.73 12.55 11.76   10.71 ~ 156 1
26 NGC 419 OpC 01 08 17.26 -72 53 01.8 11.41 11.16 10.50   9.34 ~ 287 0
27 [RZ2005] 194 Cl* 01 12 51.74 -73 07 10.9 14.66 14.52 13.80   12.83 ~ 26 0
28 ESO 29-46 Cl* 01 33 14 -74 10.0   15.1       ~ 18 0
29 ESO 29-48 Cl* 01 34 26 -72 52.5   14.3       ~ 34 0
30 NGC 643 Cl* 01 35 00.0 -75 33 24           ~ 33 1
31 Cl Lindsay 113 Cl* 01 49 30.0 -73 43 40   11.9       ~ 97 0
32 NGC 752 OpC 01 56 53.7 +37 45 06           ~ 712 0
33 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
34 NAME Magellanic Bridge HI 03 11 -77.5           ~ 522 1
35 NGC 1817 OpC 05 12 33.9 +16 41 34           ~ 210 0
36 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
37 M 37 OpC 05 52 18.6 +32 32 36           ~ 436 0
38 NGC 2204 OpC 06 15 31.5 -18 40 28   9.35 8.6     ~ 172 0
39 NGC 2243 OpC 06 29 34.3 -31 16 58   10.12 9.4     ~ 298 0
40 Cl Haffner 2 OpC 07 03 06.2 -20 49 07           ~ 146 0
41 NGC 2360 OpC 07 17 45.8 -15 38 21           ~ 213 0
42 Cl Melotte 66 OpC 07 26 19.2 -47 41 14   8.73       ~ 213 0
43 NGC 2420 OpC 07 38 24.6 +21 34 26   9.0 8.3     ~ 523 0
44 Cl Berkeley 39 OpC 07 46 48.1 -04 39 59           ~ 209 1
45 NGC 2477 OpC 07 52 11.4 -38 32 47   6.64 5.8     ~ 314 0
46 NGC 2506 OpC 08 00 02.3 -10 46 22   8.28 7.6     ~ 313 0
47 NGC 2527 OpC 08 05 02.4 -28 07 06   6.81 6.5     ~ 119 0
48 NGC 2682 OpC 08 51 23.5 +11 48 54           ~ 2528 0
49 NGC 3680 OpC 11 25 19.8 -43 14 38   8.40 7.6     ~ 340 0
50 NGC 3960 OpC 11 50 36.4 -55 40 40   9.07 8.3     ~ 152 0
51 NGC 5822 OpC 15 04 08.3 -54 21 52           ~ 238 0
52 NGC 5852 LIN 15 06 56.4128489030 +12 50 48.655266302   14.7       ~ 51 1
53 NGC 6134 OpC 16 27 48.5 -49 09 40   7.89 7.2     ~ 166 0
54 IC 4651 OpC 17 24 48.5 -49 55 23           ~ 374 0
55 NGC 6633 OpC 18 27 30.2 +06 38 21           ~ 423 0
56 NGC 6791 OpC 19 20 52.8 +37 46 40   10.52 9.5     ~ 1120 0
57 NGC 6819 OpC 19 41 18.3 +40 11 19   8.21 7.3     ~ 719 0
58 NGC 7789 OpC 23 57 19.4 +56 43 28   7.68 6.7     ~ 575 0

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