Probing Weak-Lined T Tauri Stars with Chandra

Physics

Scientific paper

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Chandra Proposal Id #04200452

Scientific paper

We propose to investigate with Chandra ACIS-S/HETG the thermal plasma properties of two X-ray bright weak-lined T Tauri stars, V773 Tau and HDE 283572. They represent extreme cases of magnetic activity with rapid rotation, their X-ray emission is dominated by hot plasma, and they display large flares. V773 Tau probes the PMS stage of low-mass stars, while HDE 283572 probes the PMS stage of massive A-type stars. Radio coverage will be requested to monitor the non-thermal emission. The study in both wavelength regimes will give crucial information on the energetic processes in young stars with magnetically active coronae and will provide a link between main-sequence stars and YSOs with accretion disks. Spectra of nearby X-ray bright Class I to III objects will be obtained for free as well.

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