J/A+A/568/A90 Herschel/SPIRE spectra in Arp 299 (Rosenberg+, 2014)
Molecular gas heating in Arp 299.
Rosenberg M.J.F., Meijerink R., Israel F.P., Van der Werf P.P.,
Xilouris E.M., Weiss A
<Astron. Astrophys. 568, A90 (2014)>
=2014A&A...568A..90R 2014A&A...568A..90R
ADC_Keywords: Interstellar medium ; Galaxies, spectra
Keywords: ISM: molecules - photon-dominated region (PDR) - galaxies: ISM -
galaxies: starburst - submillimeter: ISM
Abstract:
(Ultra) luminous infrared galaxies ((U)LIRGs) are nearby laboratories
that allow us to study similar processes to those occurring in high
redshift submillimeter galaxies. Understanding the heating and cooling
mechanisms in these galaxies can give us insight into the driving
mechanisms in their more distant counterparts. Molecular emission
lines play a crucial role in cooling excited gas, and recently, with
Herschel Space Observatory we have been able to observe the rich
molecular spectrum. Carbon monoxide (CO) is the most abundant and one
of the brightest molecules in the Herschel wavelength range. CO
transitions from J=4-3 to 13-12 are observed with Herschel, and
together, these lines trace the excitation of CO. We study Arp 299, a
colliding galaxy group, with one component (A) harboring an active
galactic nucleus and two more (B and C) undergoing intense star
formation. For Arp 299 A, we present PACS spectrometer observations of
high-J CO lines up to J=20-19 and JCMT observations of 13CO and HCN
to discern between UV heating and alternative heating mechanisms.
Description:
Herschel/SPIRE spectra of Arp 299 A, B, and C in both SLW and SSW
modes.
Objects:
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RA (ICRS) DE Designation(s)
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11 28 33.07 +58 33 54.2 Arp 299 A = APG 299A
11 28 30.69 +58 33 33.4 Arp 299 B = APG 299B
11 28 30.63 +58 33 49.0 Arp 299 C = APG 299C
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
list.dat 96 6 List of FITS files
fits/* . 6 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 (J2000)
10- 18 F9.5 deg DEdeg Declination (J2000)
20- 23 I4 --- Nx [1810/1951] Number of points in spectrum
25- 31 F7.3 GHz nu.min Lower value of frequency interval
35- 42 F8.3 GHz nu.max Upper value of frequency interval
46- 48 I3 Kibyte size Size of the FITS file
50- 60 A11 --- FileName Name of the FITS file in subdirectory fits
62- 96 A35 --- Title Title of the file
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Acknowledgements:
Marissa Rosenberg, mrose87(at)gmail.com
(End) Marissa Rosenberg [Leiden Obs.], Patricia Vannier [CDS] 08-Jul-2014