An Upper Limit to the Molecular Density in IC 342
- Creators
- Serabyn, E.
- Güsten, R.
- Others:
- Combes, F.
- Casoli, Fabienne
Abstract
A search for CS J=7−6 emission from the core of the galaxy IC342 was undertaken with the Caltech Submillimeter Observatory. At the line frequency of 342.883 GHz, the beamsize is 20″. An upper limit to T_(MB)Δv of 0.4 K km s^(−1) was obtained. This upper limit can be compared directly to the CS J=3−2 integrated line flux (3.1 K km s^(−1); Mauersberger and Henkel 1989), because the beam used for that observation was similar (17″). The J=7−6 to J=3−2 line ratio limit is 0.13 with no correction for the slight difference in beamsize, and ≈ 0.15 with this correction included. Assuming T_(kin) = 70 K (Martin and Ho 1986), this leads to a density upper limit of about 5 × 10^5 cm^(−3) for this gas.
Additional Information
© 1991 IAU.Attached Files
Published - an_upper_limit_to_the_molecular_density_in_ic_342.pdf
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Additional details
- Eprint ID
- 91575
- Resolver ID
- CaltechAUTHORS:20181207-124354568
- Created
-
2018-12-07Created from EPrint's datestamp field
- Updated
-
2021-11-16Created from EPrint's last_modified field
- Series Name
- IAU Symposium Proceedings Series
- Series Volume or Issue Number
- 146