Observational clues to the physics at the magnetosphere in young stellar objects
EPJ Web of Conferences, 2014 Classical T Tauri stars offer an excellent laboratory to study the accretion process and star-disk interaction, which define the transfer of mass and angular momentum in the system. The interaction takes place very close to the star, in a region of about
Alencar Silvia H. P.
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Correlating Changes in Spot Filling Factors with Stellar Rotation: The Case of LkCa 4
The Astrophysical Journal, 2023 We present a multi-epoch spectroscopic study of LkCa 4, a heavily spotted non-accreting T Tauri star. Using SpeX at NASA’s Infrared Telescope Facility (IRTF), 12 spectra were collected over five consecutive nights, spanning ≈1.5 stellar rotations.
Facundo Pérez Paolino +6 more
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Search for young stars among ROSAT All-Sky Survey X-ray sources in and around the R CrA dark cloud [PDF]
, 2000 We present the ROSAT All-Sky Survey data in a 126 deg^2 area in and around the CrA star forming region. With low-resolution spectroscopy of unidentified ROSAT sources we could find 19 new pre-main sequence stars, two of which are classical T Tauri stars,
Alcala, Juan M. +8 more
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Analysis of star-disk interaction in young stellar systems
EPJ Web of Conferences, 2014 We present preliminary results of the study of star-disk interaction in the classical T Tauri star V354 Mon, a member of the young stellar cluster NGC 2264.
Fonseca N.N.J. +2 more
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ULTRAVIOLET SPECTRUM VARIABILITY OF BP TAU
Odessa Astronomical Publications, 2010 Results of the ultraviolet IUE archive spectrum researches of classic T Tauri type star BP Tau had been presented. Spectroscopic parameters of mainly strong emission lines were measured.
N. Z. Ismailov +3 more
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Star Spot Induced Radial Velocity Variability in LkCa 19
, 2007 We describe a new radial velocity survey of T Tauri stars and present the first results. Our search is motivated by an interest in detecting massive young planets, as well as investigating the origin of the brown dwarf desert.
Bouvier J. +9 more
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Mottled Protoplanetary Disk Ionization by Magnetically Channeled T Tauri Star Energetic Particles [PDF]
, 2017 The evolution of protoplanetary disks is believed to be driven largely by angular momentum transport resulting from magnetized disk winds and turbulent viscosity. The ionization of the disk that is essential for these processes has been thought to be due
F. Fraschetti +3 more
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Infrared study of the eta Chamaeleontis cluster and the longevity of circumstellar discs [PDF]
, 2002 We have analyzed JHKL observations of the stellar population of the ~9 Myr-old eta Chamaeleontis cluster. Using infrared (IR) colour-colour and colour-excess diagrams, we find the fraction of stellar systems with near-IR excess emission is 0.60 pm 0.13 ...
A.-Ran Lyo +45 more
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Magnetospheric accretion-ejection processes in the classical T Tauri star AA Tauri [PDF]
, 2006 Context. Accretion and ejection are complex and related processes that vary on various timescales in young stars. Aims. We intend to investigate the accretion and outflow dynamics and their interaction from observations of the classical T Tauri star AA ...
J. Bouvier +12 more
semanticscholar +1 more source
Dynamics of magnetic flux tubes in accretion disks of Herbig Ae/Be stars
Open Astronomy, 2022 The dynamics of magnetic flux tubes (MFTs) in the accretion disk of typical Herbig Ae/Be star (HAeBeS) with fossil large-scale magnetic field is modeled taking into account the buoyant and drag forces, radiative heat exchange with the surrounding gas ...
Khaibrakhmanov Sergey A. +1 more
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