Search results for " Stars: Individual: Constellation Name: PZ Telescopii"

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High‐Resolution X‐Ray Spectroscopy of the Post–T Tauri Star PZ Telescopii

2004

We present an analysis of the Chandra High Energy Transmission Grating Spectrometer observation of the rapidly rotating P_(rot)=0.94 d post T Tauri (~20 Myr old) star PZ Telescopii, in the Tucana association. Using two different methods we have derived the coronal emission measure distribution, em(T), and chemical abundances. The em(T) peaks at log T = 6.9 and exhibits a significant emission measure at temperatures log T > 7. The coronal abundances are generally ~0.5 times the solar photospheric values that are presumed fairly representative of the composition of the underlying star. A minimum in abundance is seen at a first ionization potential (FIP) of 7-8 eV, with evidence for higher abu…

PhysicsX-ray spectroscopyHigh resolutionAstronomy and AstrophysicsAstrophysicsElectronCoronaAccretion (astrophysics)StarsT Tauri starSettore FIS/05 - Astronomia E AstrofisicaSpace and Planetary ScienceStars: Abundances Stars: Coronae Stars: Individual: Constellation Name: PZ Telescopii Stars: Pre-Main-Sequence Techniques: Spectroscopic X-Rays: StarsIonization energyThe Astrophysical Journal

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PEPhysical Sciences and Engineering
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