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

HCO (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 <sup>1, 2

1</sup> 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 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 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)

SIMBAD Objects

Contents

• 1. Introduction
• 2. Observations
• 3. Analysis
• 4. Results
• 5. Discussion
• 6. Conclusions
• Acknowledgements
• References

© European Southern Observatory (ESO) 1997

Online publication: April 20, 1998
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