Results 31 to 40 of about 11,325,029 (225)
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.
doaj +1 more source
Are Both Stars in a Classic T Tauri Binary Classic T Tauri Stars?
The Astrophysical Journal, 1997 Large near-IR color excesses and emission-line spectra indicate the presence of optically thick circumstellar accretion disks and active boundary layers in young stars. We investigate whether this classic T Tauri (TT) behavior is found in one or both members of a binary system previously identified as a TT on the basis of the unresolved light.
L. Prato, M. Simon
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The circumstellar environment of the young, low-mass dipper star JH 223
Astronomy & AstrophysicsContext. Studies of magnetospheric accretion and magnetic field topology in T Tauri stars have advanced over the years, but their applications to fully convective, very-low-mass T Tauri stars remain relatively unexplored. Aims.
Freitas T. P. +13 more
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Actvity on T Tauri Stars [PDF]
International Astronomical Union Colloquium, 1995 We have made a detailed investigation of the short-term variability of the classical T Tauri star BP Tauri in UBVRI. Data were collected from the Wendelstein Observatory in 1991, 1992 and 1993 with time resolutions down to 1 sec. The 0.8m telescope was equipped with a fiber-fed fifteen channel high-speed photometer (Barwig et al. 1987).
Erik Gullbring +3 more
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Some resolutions on T Tauri stars [PDF]
Symposium - International Astronomical Union, 1990 This symposium is dedicated to the results of studies of flare stars. The necessity of the detailed analysis of observational data on flare stars follows from the very simple fact, that until now the theory has not found for the answer to the question: why the young stars of low luminosity are flaring.
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MAGNETOSPHERIC ACCRETION IN T TAURI STARS: OBSERVATIONAL TEST
Odessa Astronomical Publications, 2017 In the classical T Tauri stars (CTTS) the magnetic field plays an important role in the interaction between the star and the accretion disk. In 1996-2000 we have carried out an extensive spectroscopic and photometric monitoring of the extremly active ...
P. P. Petrov
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Monitoring the magnetospheric accretion of the classical T Tauri star DO Tau with SPIRou
Astronomy & AstrophysicsWe present observations of the classical T Tauri star DO Tau collected with the near-infrared SPIRou spectropolarimeter and precision velocimeter at the Canada-France-Hawaii Telescope from early 2020 to late 2025.
Donati J.-F. +12 more
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Gender &History, EarlyView.ABSTRACT This article examines the militarization of white settler women during the Kenya Emergency (1952–1960), analyzing how their armed participation disrupted and reconfigured colonial gender norms. Drawing on visual and textual archival and newspaper sources, this article explores representations of settler women as maternal guardians of the ...
Lauren Brown
wiley +1 more source
SPECTROPOLARIMETRY OF THE CLASSICAL T TAURI STAR BP TAU [PDF]
The Astrophysical Journal, 2012 We implement a least-squares deconvolution (LSD) code to study magnetic fields on cool stars. We first apply our code to high resolution (R ≈ 60,000) optical echelle spectra of several solar-like stars as tests of the code and to measure the mean longitudinal magnetic field on the surface of these stars.
Chen, Wei, Johns-Krull, Christopher M.
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Modelling of T Tauri jets with low mass accretion rate
, 2010 We show that low mass accreting T Tauri stars may have a strong stellar jet component which can effectively brake the star to the observed rotation speed.
Sauty, C. +6 more
core +2 more sources