2005A&A...442..437V


Query : 2005A&A...442..437V

2005A&A...442..437V - Astronomy and Astrophysics, volume 442, 437-442 (2005/11-1)

HST photometry of the binary globular cluster Sersic 13N-S in NGC 5128.

VILLEGAS D., MINNITI D. and FUNES J.G.

Abstract (from CDS):

Using Hubble Space Telescope archival images we resolved individual stars in two young globular clusters centered in the giant HII region Sersic 13, on the dust band of NGC 5128. We resolved 5 sources in the southern cluster and 4 sources in the northern one. The high U luminosity of these stars (-9.3<MF336W←7.8) added to the previously detected WR features in the integrated spectra of the clusters suggest we are identifying the most massive stars of the clusters, with O or WR spectral types, whose masses can even reach 120M. We have estimated their ages in t≤6x106yr for comparison with two different set of isochrones, which is consistent with an scenario where the clusters form a binary pair that would merge in a short timescale.

Abstract Copyright:

Journal keyword(s): galaxies: individual: NGC 5128 - galaxies: star clusters

Nomenclature: Table 1: [VMF2005] WN (Nos S0-S5, N0-N4).

Simbad objects: 20

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Number of rows : 20
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 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 15467 1
2 NGC 1969 Cl* 05 26 35.300 -69 50 42.69   12.66 12.46     ~ 21 0
3 NGC 1971 Cl* 05 26 45.58 -69 51 03.2   12.01 11.90     ~ 26 0
4 RMC 136 Cl* 05 38 42.396 -69 06 03.36           ~ 1807 1
5 M 82 IG 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 5470 6
6 [MRF2004b] Sersic 13-N Cl* 13 25 26.71 -43 00 10.4   16.55 16.2     ~ 2 0
7 [MRF2004b] Sersic 13-S Cl* 13 25 26.75 -43 00 12.3   16.35 15.8     ~ 2 0
8 NAME Centaurus A Sy2 13 25 27.61509104 -43 01 08.8056025   8.18 6.84 6.66   ~ 4110 3
9 NGC 5139 GlC 13 26 47.28 -47 28 46.1   6.12 5.33     ~ 3120 0
10 [VMF2005] N3 * ~ ~           ~ 1 0
11 [VMF2005] S0 * ~ ~           ~ 1 0
12 [VMF2005] N4 * ~ ~           ~ 1 0
13 [VMF2005] S1 * ~ ~           ~ 1 0
14 [VMF2005] S2 * ~ ~           ~ 1 0
15 [VMF2005] S3 * ~ ~           ~ 1 0
16 [VMF2005] S4 * ~ ~           ~ 1 0
17 [VMF2005] S5 * ~ ~           ~ 1 0
18 [VMF2005] N0 * ~ ~           ~ 1 0
19 [VMF2005] N1 * ~ ~           ~ 1 0
20 [VMF2005] N2 * ~ ~           ~ 1 0

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2021.08.02-00:32:32

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