Centimeter Emission in the UY Aur System

Details Centimeter Emission in the UY Aur System Centimeter Emission in the UY Aur System

2005-10-08

arxiv.org/abs/astro-ph/0510240v1

Astronomy and Astrophysics

Astrophysics

4 pages, 2 figures. Accepted to the April 2006 issue of Revista Mexicana de Astronomia y Astrofisica

Scientific paper

We report 3.6 cm continuum observations taken with the Very Large Array (VLA) of the young binary system UY Aur. The binary consists of a T Tauri star, UY Aur A, and a so-called ``infrared companion'' (IRC), UY Aur B, separated by 0.''89. UY Aur is an interesting system because it shows observational features whose origin is not well understood. One of them is the unusual low spectral index found in the millimeter region. In our VLA study, we have detected centimeter continuum radiation that coincides with the reported positions at 1.3 and 2.7 mm and is consistent with the optical position of UY Aur. We conclude that the 3.6 cm emission is associated with the binary system. Furthermore, we suggest that the centimeter emission might be related to a previously reported bipolar outflow.

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