SIMBAD references

2003A&A...406..685W - Astronomy and Astrophysics, volume 406, 685-689 (2003/8-1)

A fourth component in the young multiple system V773 Tauri.


Abstract (from CDS):

I report on a new component in the pre-main sequence multiple system V773 Tauri. This second visual companion, V773 Tau C, with a projected separation of ≃0.2" has been detected using speckle interferometry in the near-infrared. Repeated observations from 1996 to 2002 show significant orbital motion and thus confirm the character of the new companion as a gravitationally bound star. Together with the two components of the spectroscopic binary V773 Tau A and the previously known visual companion V773 Tau B, the V773 Tau system appears as a young ``mini-cluster'' of four T Tauri stars within a sphere of a radius less than 100AU. V773 Tau A, B and C form a triple system that is not hierarchic, but is apparently stable despite of this. The brightness of V773 Tau C has probably increased over the last years, which may explain its non-detection in previous binary surveys.

Abstract Copyright:

Journal keyword(s): stars: binaries: general - stars: individual: V773 Tau - stars: pre-main sequence - techniques: interferometric

CDS comments: V773 Tau B = V* FM Tau.

Simbad objects: 10

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