Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...223...79m&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 223, no. 1-2, Oct. 1989, p. 79-88.
Astronomy and Astrophysics
Astronomy
74
Astronomical Spectroscopy, Carbon Compounds, Galactic Nuclei, Interstellar Gas, Irregular Galaxies, Sulfides, Abundance, Electron Transitions, Emission Spectra, Infrared Astronomy Satellite, Milky Way Galaxy, Molecular Gases
Scientific paper
Maps in the J = 2-1 transition of CS toward the galaxies IC342 and NGC253 are presented. The distribution of the CS emission from NGC253 is consistent with the distribution of the CO 1-0 line. The CS emission from IC342, however, resembles more that seen in the CO 3-2 transition. For the first time, the isotopic substitution CS-34 is reported from an external galaxy: the CS-34 2-1 line has been detected toward NGC253 and M82 and the CS-34 3-2 line has been detected tentatively toward M82. Also for the first time, extragalactic CS has been observed in the 3-2 and 5-4 transitions toward NGC253, IC342 and M82. From this, the density of H2 in the CS emitting regions of NGC253 is about 100,000 + or - 0.4/cu cm; toward IC342, a n(H2) density less than or equal to 100,000/cu cm was obtained. Toward M82, there are regions with n(H2) about 10,000 and 100,000/cu cm. Relative CS abundances are consistent with Galactic values.
Henkel Carsten
Mauersberger Rainer
No associations
LandOfFree
Dense gas in nearby galaxies. I - Distribution, kinematics and multilevel studies of CS does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Dense gas in nearby galaxies. I - Distribution, kinematics and multilevel studies of CS, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dense gas in nearby galaxies. I - Distribution, kinematics and multilevel studies of CS will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1526912