2012A&A...544A.155F


C.D.S. - SIMBAD4 rel 1.7 - 2020.12.01CET19:59:52

2012A&A...544A.155F - Astronomy and Astrophysics, volume 544A, 155-155 (2012/8-1)

The horizontal branch luminosity vs. metallicity in M31 globular clusters.

FEDERICI L., CACCIARI C., BELLAZZINI M., FUSI PECCI F., GALLETI S. and PERINA S.

Abstract (from CDS):

Thanks to the outstanding capabilites of the HST, our current knowledge about the M31 globular clusters (GCs) is similar to our knowledge of the Milky Way GCs in the 1960s-1970s, which set the basis for studying the halo and galaxy formation using these objects as tracers, and established their importance in defining the cosmic distance scale. We intend to derive a new calibration of the MV(HB)-[Fe/H] relation by exploiting the large photometric database of old GCs in M31 in the HST archive. We collected the BVI data for 48 old GCs in M31 and analysed them by applying the same methods and procedures to all objects. We obtained a set of homogeneous colour-magnitude diagrams (CMDs) that were best-fitted with the fiducial CMD ridge lines of selected Milky Way template GCs. Reddening, metallicity, horizontal branch (HB) luminosity and distance were determined self-consistently for each cluster. There are three main results of this study: i) the relation MV(HB)=0.25(±0.02)[Fe/H]+0.89(±0.03), which is obtained from the above parameters and is calibrated on the distances of the template Galactic GCs; ii) the distance modulus to M31 of (m-M)0=24.42±0.06mag, obtained by normalising this relation at the reference value of [Fe/H]=-1.5 to a similar relation using V0(HB). This is the first determination of the distance to M31 based on the characteristics of its GC system, which is calibrated on Galactic GCs, iii) the distance to the Large Magellanic Cloud (LMC), which is estimated to be 18.54±0.07mag as a consequence of the previous results. These values agree excellently with the most recent estimate based on HST parallaxes of Galactic Cepheid and RR Lyrae stars, as well as with recent methods.

Abstract Copyright:

Journal keyword(s): galaxies: individual: M31 - galaxies: star clusters: general - catalogs - Local Group - techniques: photometric

VizieR on-line data: <Available at CDS (J/A+A/544/A155): clusters.dat g58.dat g219.dat g108.dat g105.dat b468.dat g1.dat g351.dat g64.dat g87.dat g119.dat g287.dat g302.dat g11.dat g33.dat g76.dat g312.dat g319.dat g322.dat gc1.dat gc2.dat gc3.dat gc4.dat gc5.dat gc6.dat gc7.dat gc8.dat gc9.dat gc10.dat ec1.dat ec2.dat ec3.dat ec4.dat>

Status at CDS : All or part of tables of objects will not be ingested in SIMBAD.

Simbad objects: 60

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Number of rows : 60

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NGC 104 GlC 00 24 05.359 -72 04 53.20   5.78 4.09     ~ 3586 0
2 [HTF2008] H4 GlC 00 29 45.01 +41 13 09.6     16.98   16.04 ~ 17 0
3 2MASX J00302731+4136193 GlC 00 30 27.315 +41 36 19.32     16.31   15.36 ~ 21 0
4 [HTF2008] H6 GlC 00 31 09.83 +37 54 00.0     16.28   14.68 ~ 40 0
5 NAME Mayall II GlC 00 32 46.53 +39 34 40.5   14.564 13.807 13.208 12.684 ~ 372 1
6 LEDA 2068390 GlC 00 35 59.7355543286 +35 41 03.598209898     16.09   15.01 ~ 28 0
7 Bol 531 ? 00 36 14.70 +40 57 56.6           ~ 5 0
8 Bol 292 GlC 00 36 16.6769938424 +40 58 26.470646632 17.870 17.891 16.995 16.624 16.060 ~ 38 0
9 RX J0036.3+4053 GlC 00 36 20.86 +40 53 37.1 17.190 17.033 16.35 15.787 15.40 ~ 55 0
10 Bol 298 GlC 00 38 00.25 +40 43 56.0 17.380 17.231 16.590 16.032 15.470 ~ 41 0
11 NAME M31-EC3 GlC 00 38 04.61 +40 44 39.4     17.60   16.58 ~ 16 0
12 NAME M31-EC1 GlC 00 38 19.49 +41 47 14.9     17.60   16.72 ~ 16 0
13 [HTF2008] H14 GlC 00 38 49.41 +42 22 46.9     18.27   17.07 ~ 18 0
14 BA 3-17 GlC 00 39 33.72 +40 31 14.7 16.338 16.209 15.362 14.803 14.39 ~ 78 0
15 Bol 6 GlC 00 40 26.4828316304 +41 27 26.653846594 16.940 16.490 15.74 14.970 14.52 ~ 82 0
16 Bol 8 GlC 00 40 30.27 +41 16 08.7 18.160 17.660 16.560 16.210 15.510 ~ 41 0
17 Bol 10 GlC 00 40 31.57 +41 14 22.4 17.650 17.500 16.660 16.120 15.480 ~ 45 0
18 Bol 12 GlC 00 40 32.4598109034 +41 21 44.200706344 15.990 15.860 15.17 14.620 14.14 ~ 75 0
19 Bol 336 GlC 00 40 47.61 +42 08 42.1 18.790 18.521 17.811 17.403 16.950 ~ 28 0
20 Bol 337 GlC 00 40 48.48 +42 12 10.9 17.690 17.522 16.733 16.242 15.630 ~ 39 0
21 Bol 338 GlC 00 40 58.871 +40 35 47.41 15.123 15.034 14.168 13.621 13.27 ~ 73 0
22 [MLV92] 237751 GlC 00 41 01.151 +41 13 45.41 16.040 15.400 14.17 13.560 12.570 ~ 80 0
23 Bol 27 GlC 00 41 14.524 +40 55 51.19 16.669 16.486 15.642 15.104 14.55 ~ 63 0
24 Bol 343 GlC 00 41 43.1011408698 +40 12 22.414305198 17.230 17.080 16.69 15.910 15.42 ~ 69 0
25 Bol 45 GlC 00 41 43.11 +41 34 20.1 17.059 16.665 15.727 15.140 14.63 ~ 98 0
26 2MASS J00415300+4047096 GlC 00 41 53.008 +40 47 09.65 15.986 15.776 14.967 14.474 14.03 ~ 75 0
27 Bol 88 GlC 00 42 21.06 +41 32 14.2 16.763 16.414 15.340 14.609 13.950 ~ 51 0
28 Bol 350 GlC 00 42 28.43 +40 24 51.2 17.470 17.360 16.740 16.200 15.640 ~ 40 1
29 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 11103 1
30 NAME M31-EC2 GlC 00 42 55.00 +43 57 28.0     17.10   16.17 ~ 19 0
31 Bol 468 GlC 00 43 12.55 +39 47 57.3 18.490 18.490 17.788 17.200 16.626 ~ 35 0
32 Bol 158 GlC 00 43 14.406 +41 07 21.28 15.900 15.560 14.65 14.150 13.550 ~ 113 1
33 NAME Mayall IV GlC 00 43 17.85 +39 49 13.2 15.900 15.710 15.219 14.639 14.122 ~ 82 0
34 [JSD2015] AP 253 GlC 00 44 19.4549832912 +41 30 34.664513446 17.315 17.178 16.472 15.963 15.458 ~ 46 0
35 BA 3-1 GlC 00 44 27.09 +41 28 49.8 16.132 16.034 15.340 14.842 14.339 ~ 53 0
36 2E 166 GlC 00 44 29.560 +41 21 35.72 15.50 15.000 14.220 13.679 13.02 ~ 126 0
37 Bol 233 GlC 00 44 42.12 +41 43 54.5 16.552 16.404 15.615 15.144 14.593 ~ 48 0
38 BA 3-24 GlC 00 44 46.68 +42 03 50.4 16.946 16.888 16.176 15.718 15.072 ~ 41 0
39 Bol D255 GlC 00 44 48.56 +42 06 13.3 19.329 18.976 18.117 17.591 16.845 ~ 15 0
40 Bol 240 GlC 00 45 25.0383976564 +41 06 22.131507926 16.030 15.930 15.210 14.730 14.210 ~ 76 0
41 Bol 379 GlC 00 45 58.8309005030 +40 42 31.400600234 17.460 17.032 16.183 15.560 14.936 ~ 74 0
42 Bol 384 GlC 00 46 21.9300523115 +40 16 59.647551658 17.370 16.743 15.752 15.260 14.564 ~ 62 0
43 BA 3-8 GlC 00 46 27.016 +42 01 52.75 16.554 16.355 15.541 14.997 14.435 ~ 86 0
44 Bol 405 GlC 00 49 39.80 +41 35 29.8 16.220 15.930 15.195 14.656   ~ 61 0
45 NAME Mayall V GlC 00 50 09.9648440835 +41 41 01.045117023 17.630 16.953 16.053 15.400 14.830 ~ 55 0
46 NAME Martin-GC1 GlC 00 50 42.45 +32 54 58.7     15.50     ~ 46 1
47 [HTF2008] H23 GlC 00 54 24.9625587034 +39 42 55.532937875     16.72   15.68 ~ 21 0
48 [HTF2008] H24 GlC 00 55 43.94 +42 46 16.1     17.78   16.71 ~ 19 0
49 NAME M31-EC4 GlC 00 58 15.42 +38 03 02.0     18.84   17.77 ~ 26 0
50 [HTF2008] H27 GlC 01 07 26.30 +35 46 46.5     16.50   15.59 ~ 24 0
51 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 15061 1
52 NGC 4147 GlC 12 10 06.149 +18 32 31.78   11.45 10.74     ~ 500 0
53 M 3 GlC 13 42 11.62 +28 22 38.2     6.39     ~ 2279 0
54 M 5 GlC 15 18 33.22 +02 04 51.7   7.34 5.95     ~ 1788 0
55 NGC 5927 GlC 15 28 00.69 -50 40 22.9   10.13 8.86     ~ 407 0
56 M 13 GlC 16 41 41.634 +36 27 40.75     5.8     ~ 2020 0
57 M 92 GlC 17 17 07.39 +43 08 09.4     6.52     ~ 1920 0
58 NGC 6723 GlC 18 59 33.15 -36 37 56.1           ~ 433 0
59 M 15 GlC 21 29 58.33 +12 10 01.2   3       ~ 2926 0
60 NAME Local Group GrG ~ ~           ~ 7114 0

    Equat.    Gal    SGal    Ecl

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2020.12.01-19:59:52

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