2009MNRAS.394.1847U


Query : 2009MNRAS.394.1847U

2009MNRAS.394.1847U - Mon. Not. R. Astron. Soc., 394, 1847-1856 (2009/April-3)

Multiwavelength study of M33's giant HII regions NGC 588 and NGC 592.

UBEDA L. and DRISSEN L.

Abstract (from CDS):

We present a detailed multiwavelength photometric study of giant Hii regions NGC 592 and NGC 588 in the nearby small spiral galaxy M33. We use data taken with the Wide Field and Planetary Camera 2 (WFPC2) on board the Hubble Space Telescope (HST). We detect several massive stars in both ionizing clusters. Six Wolf-Rayet (WR) stars are known to exist within those regions and we are able to constrain their physical properties by comparing their photometry to the latest grid of model atmospheres for WR stars of the nitrogen sequence (WN subclass). We estimate the age and mass of both regions by fitting our photometry to models of integrated stellar populations.

Abstract Copyright: © 2009 The Authors. Journal compilation © 2009 RAS

Journal keyword(s): techniques: photometric - stars: evolution - Hertzsprung-Russell (HR) diagram - stars: Wolf-Rayet - galaxies: individual: M33

Simbad objects: 12

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Number of rows : 12
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 588 HII 01 32 45.2 +30 38 54 14.59 14.40 14.44 14.89 15.16 ~ 126 1
2 [HS80] B7 s*b 01 32 45.3729299808 +30 38 58.247750688 16.377 17.479 17.612 17.618 17.603 Ofpe 16 0
3 [HS80] B10 WR* 01 32 45.77 +30 38 55.4 16.798 17.811 17.958 18.064 18.162 WN2+O7 11 0
4 LGGS J013310.82+303900.2 WR* 01 33 10.82 +30 39 00.2   22.405 22.764 22.026 21.603 WN 8 0
5 [HS80] B67 sg* 01 33 11.88 +30 38 53.7 15.979 16.858 16.812 16.748 16.645 WNL 13 0
6 VGHC 2-22 HII 01 33 12.188 +30 38 47.14           ~ 81 0
7 DMS NGC 592 2 WR* 01 33 12.4142613758 +30 38 47.979563167   19.7 19.22     WN3 5 0
8 [NM2011] J013315.02+303906.9 WR* 01 33 15.02 +30 39 06.9 19.018 19.433 19.784 19.663 19.647 WC5-6 10 0
9 NGC 595 HII 01 33 33.53 +30 41 29.8           ~ 213 0
10 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
11 NGC 604 HII 01 34 32.1 +30 47 01           ~ 608 0
12 MR 39 WR* 11 16 57.8368404744 -59 26 23.893309392   13.04 12.79 12.71   WN4-w 55 0

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