2005A&A...434..657B

Query : 2005A&A...434..657B

2005A&A...434..657B - Astronomy and Astrophysics, volume 434657-663 (2005/5-1)

The calibration of the metallicity versus C/M relation.

BATTINELLI P. and DEMERS S.

Abstract (from CDS):

This paper presents a critical reassessment of the C/M ratio in the Local Group galaxies that have been surveyed by us in the last few years. We update distances, reddenings and metallicities with particular care to obtain coherent values for each galaxy. A new equation for the bolometric correction of M stars in terms of their (R-I) colours is obtained from Bessell et al. (1998A&A...337..321B) data. We present a critical discussion on the colour - spectral type relation for M stars which reveals a dramatic lack of reliable data for late M stars. Finally, we show that - when homogeneous data are used - the log(C/M0+) is well correlated to the [Fe/H] of the parent galaxy.

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Journal keyword(s): stars: AGB and post-AGB - stars: carbon - stars: late-type - galaxies: abundances - Local Group

Simbad objects: 25

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Number of rows : 25
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 MCG-03-01-015 G 00 01 57.9 -15 27 50   11.50 11.10 10.93   ~ 782 2
2 NGC 55 rG 00 14 53.602 -39 11 47.86 8.54 8.58 7.87 7.84   ~ 828 2
3 IC 10 rG 00 20 17.33520 +59 18 13.6480   13.6 9.5     ~ 1185 1
4 NGC 147 GiG 00 33 12.120 +48 30 31.46   12.0 9.5     ~ 720 1
5 NGC 185 Sy2 00 38 57.9400026024 +48 20 15.035874648   9.10 9.2     ~ 840 1
6 M 110 GiG 00 40 22.0572349992 +41 41 07.507220136   8.92 8.07     ~ 1370 1
7 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
8 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
9 NGC 300 GiG 00 54 53.4465638304 -37 41 03.168402396 8.83 8.69 8.13 7.46   ~ 1614 2
10 IC 1613 GiC 01 04 48.4071 +02 07 10.185   10.42 10.01 9.77   ~ 1316 2
11 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
12 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
13 ACO S 373 ClG 03 38 29.4 -35 27 08           ~ 2029 0
14 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
15 NGC 2403 AGN 07 36 51.3381434280 +65 36 09.650825640 9.31 8.84 8.38 8.19   ~ 1887 1
16 NGC 3109 AG? 10 03 06.877 -26 09 34.46 11.10 10.42 10.04 9.91   ~ 825 2
17 Z 64-73 G 10 08 28.12 +12 18 23.4   11.3 10.0     ~ 1284 1
18 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
19 NAME Sgr dIG G 19 29 59.0 -17 40 41   15.5 13.6     ~ 323 1
20 NGC 6822 G 19 44 56.199 -14 47 51.29   18 8.1     ~ 1661 0
21 MCG-02-53-003 G 20 46 51.7 -12 50 54 15.75 15.18 14.83 14.46   ~ 470 1
22 NAME Andromeda VII GiG 23 26 31.0 +50 40 33   13.6 11.8     ~ 222 1
23 Z 431-72 G 23 28 35.2 +14 44 35 13.85 13.16 12.52     ~ 499 1
24 NAME Local Group GrG ~ ~           ~ 9325 0
25 NAME Galactic Bulge reg ~ ~           ~ 4794 0

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