T Tauri
Temperaments of young stars : rapid mass accretion rate changes in T Tauri and Herbig Ae stars
... weak-lined T Tauri stars (WTTS) and classical T Tauri stars ...on T Tauri stars is more common than solar flares, these numbers show that these events do not occur very often in ...
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CSI 2264 : accretion process in classical T Tauri stars in the young cluster NGC 2264
... Classical T Tauri stars with spot-like light curves correspond mostly to systems with a low mass-accretion rate and low mid-IR ...classical T Tauri stars observed in the 2008 and 2011 CoRoT ...
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Stellar energetic particle ionization in protoplanetary disks around T Tauri stars
... ical SP flux of f p (E p ≈ 10 MeV) ≈ 10 7 protons cm −2 s −1 (at 1 au) as commonly proposed for T Tauri stars and a particle energy distribution derived from measurements of solar particle events. Based on ...
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Magnetospheric accretion on the fully convective classical T Tauri star DN Tau
... classical T Tauri stars or cTTSs) host magnetic fields strong enough to disrupt the central re- gions of their discs and to control accretion through discrete funnels linking the inner discs to the stellar ...
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Photo-reverberation mapping of a protoplanetary accretion disk around a T Tauri star
... Theoretical models and spectroscopic observations of newborn stars suggest that protoplantary disks have an inner “ wall ” at a distance set by the disk interaction with the star. Around T Tauri stars, the ...
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Classical T Tauri stars : magnetic fields, coronae, and star disc interactions
... classical T Tauri stars (CTTSs) we investigate their closed X-ray emitting coronae, their open wind-bearing magnetic fields and the geometry of magnetospheric accretion ...
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The mysterious dimmings of the T Tauri star V1334 Tau
... We also fi nd a double-peaked H α emission line, which may be an indication of an accretion disk ( See Figure 5 ) . The H α feature has an equivalent width of ∼ 5 Å , which could be taken to mean that the star still ...
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The hot Jupiter of the magnetically active weak line T Tauri star V830 Tau
... Figure 6. Potential extrapolations of the magnetic field reconstructed for V830 Tau in early 2016 (left) and late 2015 (right), as seen by an Earth-based observer at phase 0.10. Open and closed field lines are shown in ...
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Discovery of new dipper stars with K2 : a window into the inner disc region of T Tauri stars
... Several works have suggested that the photometric vari- ability of young T Tauri stars can be attributed to warps in the disk at the inner edge and/or accretion streams. Bouvier et al. (2003) suggest this ...
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Modelling mid infrared molecular emission lines from T Tauri stars
... i T s computes the line emission spectra by ray tracing in an efficient, fast and reliable ...of T Tauri stars concerning line strengths, colour, and line ...
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A hot Jupiter around the very active weak line T Tauri star TAP 26
... weak-line T Tauri star TAP 26, carried out within the Magnetic Topologies of Young Stars and the Survival of close-in massive Exoplanets (MaTYSSE) programme with the Echelle SpectroPolarimetric Device for ...
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The surface magnetic activity of the weak-line T Tauri stars TWA 9Aand V1095 Sco
... line T Tauri stars (wTTSs) TWA 9A and V1095 Sco as part of a wider survey of magnetic properties and activity in weak-line T Tauri stars, called MaTYSSE (Magnetic Topologies of Young Stars and ...
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Surface magnetic fields on two accreting T Tauri stars: CV Cha and CR Cha
... of T Tauri stars should ideally combine both Stokes I and Stokes V data, in order to measure the total magnetic flux in these systems as well as the field ...
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Surface differential rotation and prominences of the Lupus post T Tauri star RX J1508.6-4423
... The present study focuses on an even younger and faster rotator, the post T Tauri star RX J1508.6±4423 located close to the Lupus star-forming region on which several recent studies were focused (e.g. ...
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Accretion and magnetic reconnection in the classical T TAURI binary DQ TAU
... With moderate-cadence photometry from LCOGT, supple- mented with high-cadence photometry from the WIYN 0.9 m and ARCSAT telescopes, we have obtained a comprehensive data set capable of characterizing variability and its ...
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Optical Spectroscopic Monitoring Observations of a T Tauri Star V409 Tau
... V409 is a UX Orionis candidate [10]. UX Ori type variability is observed in Herbig Ae/Be stars and some T Tauri stars with early K spectral types [1]. The variability is characterized by large-amplitude ...
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The infrared line emitting regions of T Tauri protoplanetary disks
... These improved observational capabilities demand a more complex approach to understanding the data, such as using high- resolution 2D models. We can construct thermochemical models of T Tauri stars and fit ...
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Long term variability of T Tauri stars using WASP
... We present a reference study of the long-term optical variability of young stars using data from the WASP project. Our primary sample is a group of well-studied classical T Tauri stars (CTTS), mostly in ...
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Simulations of winds of weak lined T Tauri stars II : The effects of a tilted magnetosphere and planetary interactions
... Despite the existing knowledge of the surface magnetic fields in young stars, the global structure of the stel- lar magnetic field is unknown. Magnetic field extrap- olations from surface magnetograms using the potential ...
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Doppler images and chromospheric variability of TWA 6
... Weak-line T Tauri stars (WTTS) have weaker emission- line activity and show less evidence of accretion. WTTS ap- pear to be older than CTTS on average (Armitage et al. 2003), suggesting that when TTS form ...
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