Oka, Tomoharu; Hasegawa, Tetsuo; White, Glenn J.; Sato, Fumio; Tsuboi, Masato and Miyazaki, Atsushi
(1998).
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| URL: | http://cdsads.u-strasbg.fr/abs/1998IAUS..184..193O |
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Abstract
In our high resolution CO J = 1-0 images taken with the 2x2 focal-plane array receiver at the 45 m telescope of Nobeyama Radio Observarory, we find a peculiar compact (< 5 pc) cloud, CO0.024-0.028, at about 5' north from the center of the Galaxy. CO0.024-0.028 stands out its extremely broad line width (DV ~300 km/s) and enhanced gas kinetic temperature (Tk ≥ 70 K). Recent observations with JCMT have revealed that CO0.024-0.028 is overwhelmingly bright in its CO J = 3-2 line emission, appearing even brighter than the Galactic center circumnuclear disk. In fact, CO0.024-0.028 is the dominant source in the vicinity of the nucleus of our Galaxy, and it clearly has a conspicuously high density and temperature. We are about to propose that CO0.024-0.028 may have been accelerated, heated and compressed by one or more SNRs younger than 1E4 years.
| Item Type: | Conference Item |
|---|---|
| Copyright Holders: | 1998 IAU |
| Extra Information: | The central regions of the Galaxy and galaxies,
Proceedings of the 184th symposium of the International Astronomical Union, held in Kyoto, Japan, August 18-22, 1997. Edited by Yoshiaki Sofue. Dordrecht: Kluwer, 1998. ISBN: 079235060X, p.193 |
| Academic Unit/Department: | Science > Physical Sciences |
| Interdisciplinary Research Centre: | Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR) |
| Related URLs: | |
| Item ID: | 32670 |
| Depositing User: | Glenn White |
| Date Deposited: | 08 Mar 2012 14:42 |
| Last Modified: | 11 May 2012 17:08 |
| URI: | http://oro.open.ac.uk/id/eprint/32670 |
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