J/ApJS/178/56 CO observations of LMC Giant Molecular clouds (Fukui+, 2008)
The second survey of the molecular clouds in the Large Magellanic Cloud by NANTEN. I. Catalog of molecular clouds. Fukui Y., Kawamura A., Minamidani T., Mizuno Y., Kanai Y., Mizuno N., Onishi T., Yonekura Y., Mizuno A., Ogawa H., Rubio M. <Astrophys. J. Suppl. Ser., 178, 56-70 (2008)> =2008ApJS..178...56F
ADC_Keywords: Molecular clouds ; Magellanic Clouds ; Interstellar medium ; Radio lines Keywords: galaxies: ISM - ISM: molecules - ISM: structure - Magellanic Clouds radio lines: ISM - stars: formation Abstract: The second survey of the molecular clouds in the Large Magellanic Cloud in 12CO(J=1-0) was carried out by NANTEN. The sensitivity of this survey is twice as high as that of the previous NANTEN survey, leading to a detection of molecular clouds with MCO≳2x104solMass. We identified 272 molecular clouds, 230 of which are detected at three or more observed positions. We derived the physical properties, such as size, line width, and virial mass, of the 164 GMCs (Giant Molecular clouds) that have an extent more than the beam size of NANTEN in both the major and minor axes. Description: We carried out sensitive CO(J=1-0) observations toward the LMC with NANTEN, a 4m radio telescope of Nagoya University at Las Campanas Observatory, Chile. The spectrometers were two acousto-optical spectrometers (AOSs) with 2048 channels. The pointing accuracy was better than 20", as checked by optical observations of stars with a CCD camera attached to the telescope, as well as by radio observations of Jupiter, Venus, and the edge of the Sun. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 70 230 Catalog of 230 Giant Molecular Clouds table2.dat 70 42 Catalog of 42 small clouds table3.dat 56 230 Properties of 230 Giant Molecular Clouds
See also: J/PASJ/53/971 : CO catalog of LMC molecular clouds (Mizuno+, 2001) Byte-by-byte Description of file: table.dat
Bytes Format Units Label Explanations
1- 3 I3 --- [FKM2008] Identification number (NNN) 5- 9 A5 --- --- LMC N (1) 11- 20 A10 --- LMCN Cloud name (JHHMM-DDMM) (1) 22 I1 h RAh Hour of Right Ascension (J2000) (G1) 24- 25 I2 min RAm Minute of Right Ascension (J2000) 27- 30 F4.1 s RAs Second of Right Ascension (J2000) 32 A1 --- DE- Sign of the Declination (J2000) 33- 34 I2 deg DEd Degree of Declination (J2000) 36- 37 I2 arcmin DEm Arcminute of Declination (J2000) 39- 42 F4.1 arcsec DEs Arcsecond of Declination (J2000) 44 I1 h RABh Hour of Right Ascension (B1950) 46- 47 I2 min RABm Minute of Right Ascension (B1950) 49- 52 F4.1 s RABs Second of Right Ascension (B1950) 54 A1 --- DEB- Sign of the Declination (B1950) 55- 56 I2 deg DEBd Degree of Declination (B1950) 58- 59 I2 arcmin DEBm Arcminute of Declination (B1950) 61- 64 F4.1 arcsec DEBs Arcsecond of Declination (B1950) 66- 70 F5.1 km/s VLSR Local Standard of Rest velocity (2)
Note (1): `N' stands for `NANTEN'. [FKM2008] LMC N JHHMM-DDMM in Simbad. Note (2): Derived from an intensity-weighted mean of the velocity distribution within a cloud.
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 3 I3 --- [FKM2008] Identification number (NNN) 5- 9 A5 --- --- LMC N 11- 20 A10 --- LMCN Cloud name (JHHMM-DDMM) 22- 25 F4.1 km/s DV Observed FWHM of the line width (1) 27- 29 I3 pc R ? Cloud size (2) 31- 33 I3 deg PA Cloud position angle 35- 37 I3 pc Maj Cloud major axis (3) 39- 40 I2 pc Min ? Cloud minor axis (3) 42- 45 F4.1 10+4K.km/s.pc2 LCO Cloud CO luminosity 47- 50 F4.1 10+5solMass MVir ? Cloud virial mass (4) 52- 56 F5.1 10+5solMass MCO Cloud CO mass (5)
Note (1): Derived from the second moment of the spectra within a cloud. Note (2): Derived by a geometric mean of the second spatial moment along the major and minor axis. Radius is blank when the minor axis is not derivable. Note (3): Without beam deconvolution. Minor axis without deconvolution is blank when a cloud was detected only at one observed point along the minor axis. Note (4): MVir is blank when R is blank. Note (5): Derived from LCO with XCO=7x1020cm-2/(K.km/s)
Global Notes: Note (G1): Position of the clouds derived from an intensity-weighted mean over all the pixels of a cloud.
History: From electronic version of the journal Reference: Kawamura et al. Paper II. 2009ApJS..184....1K. Cat J/ApJS/184/1.
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 20-Jul-2009
|The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line|