Summary: Astronomy & Astrophysics manuscript no. ttaudec1 c ESO 2006
December 1, 2006
X-rays from T Tau: A test case for accreting T Tauri stars
Manuel G¨udel1, Stephen L. Skinner2, Stanislav Yu. Mel'nikov3, Marc Audard4, , Alessandra Telleschi1, and Kevin R.
Paul Scherrer Institut, W¨urenlingen and Villigen, CH-5232 Villigen PSI, Switzerland
CASA, 389, University of Colorado, Boulder, CO 80309-0389, USA
Ulugh Beg Astronomical Institute, Academy of Sciences of Uzbekistan, Astronomicheskaya ul. 33, Tashkent, 700052, Uzbekistan
Columbia Astrophysics Laboratory, Mail Code 5247, 550 West 120th Street, New York, NY 10027, USA
Received 2006; accepted 2006
Context. The generation of X-rays in accreting T Tauri stars (TTS) is thought to be predominantly due to energy dissipation in mag-
netic fields, but alternative X-ray generation mechanisms have been proposed, such as heating in accretion shocks near the stellar
surface, or in shocks forming in jets.
Aims. We test models and trends discussed in the previous literature using X-ray data from the classical TTS T Tau.