J/A+A/571/A53 4 IRDC data cubes (Beuther+, 2014)
Carbon in different phases ([CII], [CI], and CO) in infrared dark clouds:
Cloud formation signatures and carbon gas fractions.
Beuther H., Ragan S.E., Ossenkopf V., Glover S., Henning T., Linz H.,
Nielbock M., Krause O., Stutzki J., Schilke P., Guesten R.
<Astron. Astrophys. 571, A53 (2014)>
=2014A&A...571A..53B 2014A&A...571A..53B (SIMBAD/NED BibCode)
ADC_Keywords: Molecular clouds
Keywords: stars: formation - stars: early-type - stars: general -
stars: massive - ISM: clouds - ISM: structure
Abstract:
How molecular clouds form out of the atomic phase and what the
relative fractions of carbon are in the ionized, atomic, and molecular
phase are questions at the heart of cloud and star formation.
We want to understand the kinematic processes of gas flows during the
formation of molecular clouds. In addition to that, we aim at
determining the abundance ratios of carbon in its various gas phases
from the ionized to the molecular form.
Using multiple observatories from Herschel and SOFIA to APEX and the
IRAM 30m telescope, we mapped the ionized and atomic carbon as well as
carbon monoxide ([CII] at 1900GHz, [CI] at 492GHz, and C18O(2-1) at
220GHz) at high spatial resolution (12"-25") in four young massive
infrared dark clouds (IRDCs).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
list.dat 169 13 List of FITS data cubes
fits/* 13 Individual FITS data cubes
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Byte-by-byte Description of file: list.dat
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Bytes Format Units Label Explanations
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1- 9 F9.5 deg RAdeg Right ascension of center (J2000)
10- 18 F9.5 deg DEdeg Declination of center (J2000)
20- 23 F4.2 arcsec/pix Scale [5/8] Scale of the image
25- 26 I2 --- Nx [26/80] Number of pixels along X-axis
28- 29 I2 --- Ny [35/90] Number of pixels along Y-axis
31- 34 I4 --- Nz [35/1016] Number of slices
36- 40 F5.1 km/s bVrad [24/85] Lower value of velocity interval
42- 46 F5.1 km/s BVrad [34/140] Upper value of velocity interval
48- 52 F5.3 km/s dVrad [0.07/1.21] Velocity resolution
54- 62 F9.4 GHz Freq [219/1901] Line rest frequency
64- 68 I5 Kibyte size [146/11157] Size of the FITS file
70- 98 A29 --- FileName Name of the FITS file in subdirectory fits
99-148 A50 --- Title Title of the file
150-169 A20 --- SName Simbad name of the source
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Acknowledgements:
Henrik Beuther, beuther(at)mpia-hd.mpg.de
(End) Patricia Vannier [CDS] 03-Oct-2014