J/A+A/553/A115 Millimetric and far-IR maps of IRDC 18310-4 (Beuther+, 2013)
Fragmentation and dynamical collapse of the starless high-mass star-forming
region IRDC 18310-4.
Beuther H., Linz H., Tackenberg J., Henning Th., Krause O., Ragan S.,
Nielbock M., Launhardt R., Bihr S., Schmiedeke A., Smith R., Sakai T.
<Astron. Astrophys. 553, A115 (2013)>
=2013A&A...553A.115B 2013A&A...553A.115B
ADC_Keywords: Molecular clouds ; Spectra, millimetric/submm
Keywords: stars: early-type - stars: formation -
stars: individual: IRDC18310-4 - stars: massive -
ISM kinematics and dynamics - ISM: clouds
Abstract:
Because of their short evolutionary time-scales, the earliest stages
of high-mass star formation prior to the existence of any embedded
heating source have barely been characterized until today.
We study the fragmentation and dynamical properties of a massive
starless gas clump at the onset of high-mass star formation.
Based on Herschel continuum data we identify a massive gas clump
that remains far-infrared dark up to 100um wavelengths. The
fragmentation and dynamical properties are investigated by means of
Plateau de Bure Interferometer and Nobeyama 45m single-dish spectral
line and continuum observations.
Description:
The FITS images include observations with Herschel PACS and SPIRE,
observations at the Plateau de Bure Interferometer (France) in October
and November 2009 at 93 GHz in the C and D configurations, and
observations at the Nobeyama 45m telescope (Japan) in April 2010 tuned
to 93.17346MHz, covering the hyperfine structure of the N2H+(1-0).
Objects:
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RA (2000) DE Designation(s)
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18 33 39.42 -08 21 10.4 IRDC 18310-4 = [BSM2002] 18310-0825 4
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
list.dat 168 22 List of FITS files
fits/* . 22 Individual FITS files
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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 ? Scale of the image
25- 27 I3 pix Nx ? Number of pixels along X-axis
28 A1 --- --- [x]
29- 31 I3 pix Ny ? Number of pixels along Y-axis
33- 67 A35 --- FileName Name of FITS file in subdirectory fits
69-168 A100 --- Title Title of the file
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Acknowledgements:
Henrik Beuther, beuther(at)mpia-hd.mpg.de
(End) Patricia Vannier [CDS] 24-Apr-2013