J/A+A/469/173 Dissipative structures of diffuse molecular gas (Hily-Blant+ 2007)
Dissipative structures of diffuse molecular gas.
II. The translucent environment of a dense core.
Hily-Blant P., Falgarone E.
<Astron. Astrophys. 469, 173 (2007)>
=2007A&A...469..173H 2007A&A...469..173H
ADC_Keywords: Interstellar medium ; Radio lines; Carbon monoxide
Keywords: ISM: kinematics and dynamics - ISM: structure - ISM: magnetic fields -
line: profiles
Description:
These maps are part of a large project aimed at analyzing the
small scale morphology and velocity structure of the parsec-scale
environment of a low mass dense core. The Polaris field is translucent
and shows no signpost of star formation, therefore allowing an
analysis of a purely turbulent field prior to star formation. Our work
is based on large maps made with the IRAM-30m telescope in the two
lowest rotational transitions of 12CO and 13CO (1-0) with high
angular (20" or 0.015pc at 115GHz) and spectral (0.055km/s)
resolutions. The new data superseeds the first IRAM Key-project of
Falgarone et al. (1998A&A...331..669F 1998A&A...331..669F, Cat. VIII/66).
The field is centered at 02:00:06.0-87:42:04.1 (J2000); at the estimated
distance of 150pc, the size of the maps are 0.72*0.55pc2.
Objects:
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RA (2000) DE Designation(s)
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01 52 29.6 +87 40 31 MCLD 123.5+24.9 = NAME POLARIS CIRRUS CLOUD (target)
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
images.dat 29 2 List of FITS images
fits/* . 2 FITS images
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See also:
VIII/66 : IRAM observations in pre-star forming regions (Falgarone+ 1998-2001)
Description of file: fits/*
Common properties of the data cubes stored in the 'fits' subdirectoty:
* Data is in fits format
* The first rotational transition J=1-0 for each
isotopologue 12CO and 13CO
* Cube axes are:
(1) spatial coordinate 1 (galactic LII)
(2) spatial coordinate 2 (galactic BII)
(3) LSR velocity (km/s)
* Temperature scale is main-beam temperature corrected
for error-beam pick-up (see Falgarone et al., 1998A&A...331..669F 1998A&A...331..669F,
Cat. VIII/66 and Bensch et al., 2001A&A...365..285B 2001A&A...365..285B for details)
* blanking value: -1000
* both data cubes include the data from IRAM-Key project
"Small-scale structure of pre-star forming regions"
(VIII/66)
* regular gridded on a 10" grid
* HPBWs of the 30m at 115 GHz: 22.4"
at 110 GHz: 21.4"
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Byte-by-byte Description of file: images.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- FileName Name of the FITS file in subdirectory fits
12- 29 A18 --- Title Title of the file
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Acknowledgements:
Pierre Hily-Blant, hilyblan(at)iram.fr
(End) Patricia Vannier [CDS] 28-Jun-2007