SIMBAD references

2005ApJ...619L.179L - Astrophys. J., 619, L179-L182 (2005/February-1)

Multiepoch VLBA observations of T Tauri South.

LOINARD L., MIODUSZEWSKI A.J., RODRIGUEZ L.F., GONZALEZ R.A., RODRIGUEZ M.I. and TORRES R.M.

Abstract (from CDS):

In this Letter, we present a series of seven observations of the compact, nonthermal radio source associated with T Tauri South made with the Very Long Baseline Array (VLBA) over the course of 1 year. The emission is found to be composed of a compact structure most certainly originating from the magnetosphere of an underlying pre-main-sequence star and a low brightness extension that may result from reconnection flares at the star-disk interface. The accuracy of the absolute astrometry offered by the VLBA allows us to make very precise determinations of the trigonometric parallax and proper motion of T Tau South. The proper motion derived from our VLBA observations agrees with that measured with the Very Large Array over a similar period to better than 2 mas/yr, and it is fully consistent with the infrared proper motion of T Tau Sb, the pre-main-sequence M star with which the radio source has traditionally been associated. The parallax, π=7.07±0.14 mas, corresponds to a distance of 141.5+2.8–2.7pc.

Abstract Copyright:

Journal keyword(s): Astrometry - Stars: Binaries: General - Magnetic Fields - Radiation Mechanisms: Nonthermal - Radio Continuum: Stars - Stars: Formation

Simbad objects: 8

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2019.10.17-13:26:47

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