J/ApJ/653/1325 Galactic distribution of infrared dark clouds (Simon+, 2006)
The characterization and galactic distribution of infrared dark clouds.
Simon R., Rathborne J.M., Shah R.Y., Jackson J.M., Chambers E.T.
<Astrophys. J., 653, 1325-1335 (2006)>
=2006ApJ...653.1325S 2006ApJ...653.1325S
ADC_Keywords: Molecular clouds ; Interstellar medium ; Infrared sources
Keywords: dust, extinction - Galaxy: structure - infrared: ISM -
radio lines: ISM - stars: formation
Abstract:
Using 13CO(J=1-0) molecular line emission (112GHz) from the Boston
University-Five College Radio Astronomy Observatory Galactic Ring
Survey (BU-FCRAO GRS), we have established kinematic distances to
313 infrared dark clouds (IRDCs) by matching the morphology of the
molecular line emission in distinct velocity channels to their
mid-infrared extinction.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 70 287 Properties of the IRDCs
table2.dat 70 26 Properties of the clouds with distinct
velocity components along the line of sight
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See also:
J/ApJ/639/227 : MSX IRDC candidate catalog (Simon+, 2006)
J/ApJ/641/389 : Properties of IRDC cores (Rathborne+, 2006)
Byte-by-byte Description of file: table[12].dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- MSXDC MSXDC designation (GLLL.ll+BB.bb)
15 A1 --- m_MSXDC [abcdef] Cloud component (in table2 only)
17- 21 F5.2 deg GLON Galactic longitude
23- 27 F5.2 deg GLAT Galactic latitude
29- 33 F5.1 km/s Vlsr Local Standard of Rest (LSR) velocity
35- 38 F4.1 km/s DV Line width
40- 42 F3.1 kpc Dist Kinematic distance
44- 47 F4.1 pc Size Size for each of the IRDCs that have a
morphological match to the 13CO emission
49- 53 F5.1 K.km/s Sint Integrated intensity of 13CO
55- 58 F4.1 10+21cm-2 N(H2) H2 column density
60- 64 I5 solMass MLTE LTE mass
66- 70 I5 cm-3 n(H2) Average H2 density
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 01-Aug-2008