2004A&A...426..495V

Query : 2004A&A...426..495V

2004A&A...426..495V - Astronomy and Astrophysics, volume 426495-501 (2004/11-1)

Initial mass function in the South-Western part of M31.

VELTCHEV T., NEDIALKOV P. and BORISOV G.

Abstract (from CDS):

We derive an average initial mass function (IMF) for 50 OB associations in the South-Western part of Andromeda galaxy, combining ultraviolet photometry of Hill et al. (1995ApJS...98..595H) and two datasets HST photometry with JHKs photometry from the 2MASS + I band photometry from Magnier et al. (1992A&AS...96..379M). The mean extinctions within the associations were estimated in two independent ways and the stellar masses were determined by use of probabilistic techniques. The derived slope of the IMF Γ=-1.59±0.09 is close to the universal Salpeter's law and to recent estimates for massive stars' IMF in the Galaxy and in the Magellanic Clouds.

Abstract Copyright: ∼

Journal keyword(s): galaxies: individual: M 31 - galaxies: stellar content - galaxies: ISM - stars: luminosity function, mass function - stars: early-type - stars: supergiants

Simbad objects: 51

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Number of rows : 51
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 206 As* 00 40 33.8 +40 44 22           ~ 128 0
2 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
3 [V64] 79 As* 00 42 47.4 +40 51 54           ~ 4 0
4 [V64] 121 As* 00 42 54.5 +41 16 41           ~ 2 0
5 [V64] 72 As* 00 43 01.2 +41 06 20           ~ 2 0
6 [V64] 132 As* 00 43 07.8 +41 09 02           ~ 4 0
7 [V64] 75 As* 00 43 14.5 +40 55 39           ~ 2 0
8 [V64] 80 As* 00 43 14.5 +40 53 19           ~ 7 0
9 [V64] 131 As* 00 43 14.6 +41 11 21           ~ 2 0
10 [V64] 71 As* 00 43 23.2 +41 08 34           ~ 2 0
11 [V64] 130 As* 00 43 24.2 +41 17 40           ~ 3 0
12 [JPN2003] V168 As* 00 43 25.0 +41 14 32           ~ 4 0
13 [V64] 77 As* 00 43 30.1 +41 08 21           ~ 2 0
14 [V64] 74 As* 00 43 37.2 +41 00 25           ~ 2 0
15 [V64] 82 As* 00 43 42.8 +40 51 26           ~ 6 0
16 [MPV95] B-002 As* 00 43 44.2 +41 19 53           ~ 11 0
17 [MPV95] B-003 As* 00 43 57.2 +41 05 24           ~ 6 0
18 [V64] 68 As* 00 43 58.5 +41 24 04           ~ 3 0
19 [V64] 67 As* 00 44 01.8 +41 25 02           ~ 5 0
20 [V64] 83 As* 00 44 07.2 +40 55 20           ~ 2 0
21 [V64] 144 As* 00 44 09.8 +40 51 01           ~ 3 0
22 [MPV95] B-004 As* 00 44 10.1 +41 29 17           ~ 9 0
23 [V64] 22 As* 00 44 14.9 +41 08 09           ~ 8 0
24 [V64] 117 As* 00 44 22.9 +41 39 19           ~ 2 0
25 [V64] 145 As* 00 44 23.0 +40 54 19           ~ 3 0
26 [MPV95] B-006 As* 00 44 23.7 +41 07 12           ~ 3 0
27 [V64] 76 As* 00 44 26.7 +41 01 45           ~ 2 0
28 [V64] 84 As* 00 44 35.5 +40 59 44           ~ 3 0
29 [MPV95] B-007 As* 00 44 48.0 +41 13 45           ~ 10 0
30 [V64] 63 As* 00 44 57.9 +41 42 23           ~ 4 0
31 [V64] 85 As* 00 44 58.6 +41 04 50           ~ 2 0
32 [V64] 16 As* 00 45 00.5 +41 36 29           ~ 2 0
33 [V64] 62 As* 00 45 04.5 +41 44 30           ~ 3 0
34 [V64] 86 As* 00 45 13.2 +41 08 57           ~ 2 0
35 [V64] 61 As* 00 45 22.5 +41 47 11           ~ 4 0
36 [V64] 25 As* 00 45 24.5 +41 15 40           ~ 2 0
37 [V64] 14 As* 00 45 33.4 +41 41 28           ~ 2 0
38 [V64] 13 As* 00 45 36.8 +41 39 39           ~ 2 0
39 [V64] 15 As* 00 45 40.7 +41 43 27           ~ 3 0
40 [V64] 26 As* 00 45 40.8 +41 19 05           ~ 2 0
41 [V64] 27 As* 00 45 52.1 +41 21 18           ~ 2 0
42 [V64] 89 As* 00 45 57.7 +41 18 34           ~ 2 0
43 [V64] 1 As* 00 46 11.9 +41 34 54           ~ 3 0
44 [V64] 12 As* 00 46 14.7 +41 45 00           ~ 2 0
45 [V64] 29 As* 00 46 20.1 +41 26 39           ~ 4 0
46 [V64] 90 As* 00 46 27.6 +41 25 16           ~ 2 0
47 [V64] 2 As* 00 46 28.4 +41 40 23           ~ 3 0
48 [V64] 30 As* 00 46 29.1 +41 28 19           ~ 3 0
49 [V64] 91 As* 00 46 40.0 +41 28 22           ~ 3 0
50 [V64] 35 As* 00 46 41.7 +41 34 08           ~ 3 0
51 [V64] 31 As* 00 46 45.1 +41 30 57           ~ 5 0

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