J/A+A/595/A94 Temperature structures in Galactic center clouds (Immer+, 2016)
Temperature structures in Galactic center clouds.
Direct evidence for gas heating via turbulence.
Immer K., Kauffmann J., Pillai T., Ginsburg A., Menten K.M.
<Astron. Astrophys. 595, A94 (2016)>
=2016A&A...595A..94I 2016A&A...595A..94I (SIMBAD/NED BibCode)
ADC_Keywords: Milky Way ; Molecular clouds ; Radio lines
Keywords: Galaxy: center - ISM: molecules - ISM: structure - ISM: clouds -
submillimeter: ISM
Description:
The Central Molecular Zone (CMZ) at the center of our Galaxy is the
best template to study star formation processes under extreme
conditions, similar to those in high-redshift galaxies. We observed
on-the-fly maps of para-H2CO transitions at 218GHz and 291GHz with
the Atacama Pathfinder Experiment (APEX) telescope towards seven
Galactic center clouds. From the temperature-sensitive integrated
intensity line ratios of H2CO(321-220)/H2CO(303-202) and
H2CO(422-321)/H2CO(404-303) in combination with radiative
transfer models, we produce gas temperature maps of our targets. Our
targets have a complex velocity structure that requires a careful
disentanglement of the different components. We produce temperature
maps for each of the velocity components and show that the
temperatures of the components differ, revealing temperature gradients
in the clouds.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
list.dat 251 248 List of fits gas temperature maps
fits/* . 248 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)
21- 22 I2 --- Nx Number of pixels along X-axis
24- 25 I2 --- Ny Number of pixels along Y-axis
27- 28 I2 Kibyte size Size of FITS file
30- 77 A48 --- FileName Name of FITS file, in subdirectory fits
79-251 A173 --- Title Title of the FITS file
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Acknowledgements:
Katharina Immer, ksimmer09(at)gmail.com
(End) Katharina Immer [ESO], Patricia Vannier [CDS] 20-Aug-2016