J/ApJS/149/343 Giant molecular clouds in M33 (Engargiola+, 2003)
Giant molecular clouds in M33. I. BIMA all-disk survey.
Engargiola G., Plambeck R.L., Rosolowsky E., Blitz L.
<Astrophys. J. Suppl. Ser., 149, 343 (2003)>
=2003ApJS..149..343E 2003ApJS..149..343E
ADC_Keywords: Molecular clouds ; Carbon monoxide ; H I data ; Radio lines
Keywords: galaxies: individual (M33, NGC 598) - galaxies: ISM - ISM: clouds -
ISM: molecules - radio lines: galaxies
Abstract:
We present the first interferometric 12CO (J=1->0) map of the entire
Hα disk of M33. The 13" diameter synthesized beam corresponds to
a linear resolution of 50pc, sufficient to distinguish individual
giant molecular clouds (GMCs). From these data we generated a catalog
of 148 GMCs with an expectation that no more than 15 of the sources
are spurious. The catalog is complete down to GMC masses of
1.5x105M☉ and contains a total mass of 2.3x107M☉.
Description:
Observations were made with the BIMA array in its most compact ("D")
configuration at various times between 1999 August and 2000 October.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 75 148 Summary of Cloud Parameters for HCRO Observations
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See also:
J/PASP/111/685 : HII regions of M33. II. (Hodge+, 1999)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- n_[EPR2003] [VSC ] VSC for Velocity Selected Clouds
5- 7 I3 --- [EPR2003] Sequential number
9- 10 I2 h RAh Right ascension (J2000)
12- 13 I2 min RAm Right ascension (J2000)
15- 18 F4.1 s RAs Right ascension (J2000)
20 A1 --- DE- Declination sign (J2000)
21- 22 I2 deg DEd Declination (J2000)
24- 25 I2 arcmin DEm Declination (J2000)
27- 30 F4.1 arcsec DEs Declination (J2000)
32- 38 F7.2 km/s VCO CO velocity
40- 45 F6.1 km/s VHI HI velocity
47- 53 F7.3 --- (VCO-VHI)/sHI (VCO-VHI)/σHI ratio
55- 58 F4.1 10+4solMass MCO CO mass
60- 63 F4.1 10+4solMass MCOc Corrected CO mass
65- 68 F4.1 km/s VFWHM FWHM velocity
70- 75 F6.1 [---] lnNP Likelihood measure (1)
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Note (1): Likelihood measure, where P is the probability that this spectrum
is a noise fluctuation and N s the number of statistically independent
ways in which n adjacent channels can be selected from the data cube.
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History:
From electronic version of the journal
(End) James Marcout, Patricia Bauer [CDS] 19-Dec-2003