Observation of enhanced X-ray emission from the CTTS AA Tauri during one transit of an accretion funnel flow
N. GrossoObservatoire astronomique de Strasbourg, Université Louis-Pasteur, CNRS, INSU, 11 rue de l'Université, 67000 Strasbourg, France e-mail: [email protected]J. BouvierUniversité Joseph FourierT. MontmerleLaboratoire d'astrophysique de Grenoble, Université Joseph-Fourier, CNRS, INSU, 414 rue de la Piscine, 38041 Grenoble, FranceM. Argudo–FernándezInstituto de Astrofísica de Andalucía (CSIC), Camino Bajo de Huetor 50, 18008 Granada, SpainK. N. GrankinUlugh Beg Astronomical Institute of the Uzbek Academy of Sciences, Astronomicheskaya 33, 700052 Tashkent, UzbekistanM. R. Zapatero OsorioInstituto de Astrofísica de Canarias (IAC), vía Láctea s/n, 38205 La Laguna, Tenerife, Spain
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Context.Classical T Tauri stars are young solar-type stars accreting material from their circumstellar disks. Thanks to a favorable inclination of the system, the classical T Tauri star AA Tau exhibits periodic optical eclipses as the warped inner disk edge occults the stellar photosphere.
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