1997PASP..109..927W


Query : 1997PASP..109..927W

1997PASP..109..927W - Publ. Astron. Soc. Pac., 109, 927-931 (1997/August-0)

The luminosity function and size distribution of the H II regions in M33.

WYDER T.K., HODGE P.W. and SKELTON B.P.

Abstract (from CDS):

begin{tex}We present Hαfluxes and sizes for most of the H{2} regions in M33 listed in the catalog of Courtès et al. (1987). The observed bright end of the differential luminosity function is approximately a power law with exponent a = -2.40 ±0.15, while the number counts turn over at an Hαluminosity of approximately 10^{36.4} erg s^{-1}. After accounting for the effects of incompleteness in our sample, we find that the faint end of the corrected luminosity function remains almost constant instead of turning over. The cumulative size distribution approximately follows an exponential law with scale size D_0 = 32 ±1 pc. We briefly discuss the implications of our results for our understanding of recent high-mass star formation in M33.

Abstract Copyright: ∼

Journal keyword(s): Galaxies

Simbad objects: 5

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Number of rows : 5
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 NGC 595 HII 01 33 33.53 +30 41 29.8           ~ 213 0
3 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
4 NGC 604 HII 01 34 32.1 +30 47 01           ~ 608 0
5 NGC 6822 G 19 44 56.199 -14 47 51.29   18 8.1     ~ 1661 0

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