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Astron. Astrophys. 326, 366-372

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HCO+ (J = 43) mapping of the molecular disk around IRS 7
in Corona Australis*

I.M. Anderson1 and J. Harju1, and L.K. Haikala1,2

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

Received 24 December 1996 / Accepted 24 April 1997


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)

© European Southern Observatory (ESO) 1997

Online publication: September 9, 1997
Last change: April 20, 1998