Results 21 to 30 of about 57,378 (307)

The Mysterious Dimmings of the T Tauri Star V1334 Tau [PDF]

open access: bronze, 2017
We present the discovery of two extended ∼0.12 mag dimming events of the weak-lined T Tauri star V1334. The start of the first event was missed but came to an end in late 2003, and the second began in 2009 February, and continues as of 2016 November ...
Joseph E. Rodriguez   +37 more
openalex   +3 more sources

Modelling the magnetic activity and filtering radial velocity curves of young Suns : the weak-line T Tauri star LkCa 4 [PDF]

open access: bronze, 2014
We report results of a spectropolarimetric and photometric monitoring of the weak-line T Tauri star LkCa4 within the MaTYSSE programme, involving ESPaDOnS at the Canada-France-Hawaii Telescope.
J.‐F. Donati   +19 more
openalex   +3 more sources

Large-scale CO Spiral Arms and Complex Kinematics Associated with the T Tauri Star RU Lup [PDF]

open access: yesAstrophysical Journal, 2020
While protoplanetary disks often appear to be compact and well organized in millimeter continuum emission, CO spectral line observations are increasingly revealing complex behavior at large distances from the host star.
Jane Huang   +11 more
semanticscholar   +1 more source

Dust Disks Around Young Stellar Objects [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2016
To reproduce the spectral energy distributions (SEDs) of young stellar objects (YSOs), we perform radiative transfer model calculations for the circumstellar dust disks with various shapes and many dust species.
Kyung-Won Suh
doaj   +1 more source

The HH30 edge-on T Tauri star [PDF]

open access: yesAstronomy & Astrophysics, 2018
Context. The disk-outflow connection is thought to play a key role in extracting excess angular momentum from a forming protostar. HH30 is a rare and beautiful example of a pre-main sequence star exhibiting a flared edge-on disk, an optical jet, and a CO
F. Louvet   +7 more
semanticscholar   +1 more source

Machine-learning Morphological Classification of TESS Light Curves of T Tauri Stars

open access: yesThe Astronomical Journal, 2023
We present a variability and morphological classification study of TESS light curves for T Tauri star candidates in the Orion, IC 348, γ Velorum, Upper Scorpius, Corona Australis, and Perseus OB2 regions.
Astaroth Elizabethson   +4 more
doaj   +1 more source

A New Look at T Tauri Star Forbidden Lines: MHD-driven Winds from the Inner Disk [PDF]

open access: yesAstrophysical Journal, 2018
Magnetohydrodynamic (MHD) and photoevaporative winds are thought to play an important role in the evolution and dispersal of planet-forming disks. We report the first high-resolution (Δv ∼ 6 km s−1) analysis of [S ii] λ4068, [O i] λ5577, and [O i] λ6300 ...
M. Fang   +8 more
semanticscholar   +1 more source

Photometric and spectroscopic study of five pre-main sequence stars in the vicinity of NGC 7129 [PDF]

open access: yesSerbian Astronomical Journal, 2019
We present results from long-term optical photometric and spectroscopic observations of five pre-main sequence stars, located in the vicinity of the bright nebula NGC 7129.
Semkov E.H., Ibryamov S.I., Peneva S.P.
doaj   +1 more source

The Disk Substructures at High Angular Resolution Project (DSHARP). X. Multiple Rings, a Misaligned Inner Disk, and a Bright Arc in the Disk around the T Tauri star HD 143006 [PDF]

open access: yesAstrophysical Journal, 2018
We present a detailed analysis of new Atacama Large Millimeter/submillimeter Array (ALMA) observations of the disk around the T-Tauri star HD 143006, which at 46 mas (7.6 au) resolution reveals new substructures in the 1.25 mm continuum emission.
L. P'erez   +16 more
semanticscholar   +1 more source

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