VLT/NACO adaptive optics imaging of the TY CrA system - A fourth stellar component candidate detected

Abstract

We report the detection of a possible subsolar mass companion to the triple young system TY CrA using the NACO instrument at the VLT UT4 during its commissioning. Assuming for TY CrA a distance similar to that of the close binary system HD 176386, the photometric spectral type of this fourth stellar component candidate is consistent with an ~M4 star. We discuss the dynamical stability of this possible quadruple system as well as the possible location of dusty particles inside or outside the system.

4 pages, 2 figures postscript

References in corpus (3)

• A Photometric Catalogue of Southern Emission-Line Stars
• The Smallest Mass Ratio Young Star Spectroscopic Binaries
• Search for young stars among ROSAT All-Sky Survey X-ray sources in and around the R CrA dark cloud

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