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Astron. Astrophys. 326, 366-372 (1997)

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HCO [FORMULA] (J = 4-3) mapping of the molecular disk around IRS 7 in Corona Australis *

I.M. Anderson 1, J. Harju 1 and L.K. Haikala 1, 2

1 Observatory, P.O. Box 14, FIN-00014 University of Helsinki, Finland
2 Swedish-ESO Submillimetre Telescope, European Southern Observatory, Casilla 19001 Santiago 19, Chile

Received 24 December 1996 / Accepted 24 April 1997

Abstract

Submillimetre HCO [FORMULA] mapping observations of the immediate environs of the infrared source IRS 7 in Corona Australis have provided corroborative evidence for the existence of the rotating molecular disk detailed in our earlier paper. An improved estimate of 0.8 M [FORMULA] for the mass of the central protostar is obtained.

Key words: stars: formation – stars: individual: R CrA IRS 7 – ISM: jets and outflows – ISM: kinematics and dynamics – radio lines: ISM

* Based on observations collected at the European Southern Observatory, La Silla, Chile

Send offprint requests to: Moray Anderson (moray@ceres.helsinki.fi)

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© European Southern Observatory (ESO) 1997

Online publication: April 20, 1998
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