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J/A+A/542/A108 Giant molecular clouds in M33 (Gratier+, 2012)
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Beginning of ReadMe :J/A+A/542/A108 Giant molecular clouds in M33 (Gratier+, 2012)
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Giant molecular clouds in the Local Group galaxy M33.
Gratier P., Braine J., Rodriguez-Fernandez N.J., Schuster K.F., Kramer C.,
Corbelli E., Combes F., Brouillet N., van der Werf P.P., Rollig M.R.
<Astron. Astrophys. 542, A108 (2012)>
=2012A&A...542A.108G
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ADC_Keywords: Galaxies, nearby ; Molecular clouds
Keywords: ISM: clouds - stars: formation - galaxies: evolution - galaxies: ISM -
Local Group - galaxies: individual: M33 -
Abstract:
We present an analysis of a systematic CO(2-1) survey at 12"
resolution covering most of the Local Group spiral M33, which, at a
distance of 840kpc, is close enough for individual giant molecular
clouds (GMCs) to be identified. The goal of this work is to study the
properties of the GMCs in this subsolar metallicity galaxy. The CPROPS
(Cloud PROPertieS) algorithm was used to identify 337 GMCs in M33, the
largest sample to date for an external galaxy. The sample is used to
study the GMC luminosity function, or mass spectrum under the
assumption of a constant N(H_2_)/I_CO_ ratio.
Description:
This study is based on CO(2-1) observations of M33 by the IRAM 30m
telescope. The dataset and data reduction are presented in detail in
Paper I, Gratier et al., 2010A&A...522A...3G.