Results 21 to 30 of about 46,048 (306)
Is T Tauri North a “Classical” T Tauri Star? [PDF]
The Astrophysical Journal, 2020 Abstract We present high-resolution H- and K-band spectroscopic observations of the archetypal T Tauri star T Tau North. Synthetic spectral modeling is used to derive the K-band temperature, surface gravity, magnetic field strength, and rotational velocity for this star. The K-band spectroscopic temperature measured is
C. Flores, B. Reipurth, M. S. Connelley
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The multiplicity of T Tauri stars in the star forming regions Taurus-Auriga and Ophiuchus-Scorpius: A 2.2 micron speckle imaging survey [PDF]
, 1993 We present the results of a magnitude limited (K < =8.5 mag) speckle imaging survey of 69 T Tauri stars in the star forming regions Taurus-Auriga and Ophiuchus-Scorpius. Thirty-three companion stars were found with separations ranging from 0."07 to 2."5;
A. Ghez, G. Neugebauer, K. Matthews
semanticscholar +3 more sources
GIARPS High-resolution Observations of T Tauri stars (GHOsT) [PDF]
Astronomy & Astrophysics, 2020 Context.Disk winds play a fundamental role in the evolution of protoplanetary systems. The complex structure and dynamics can be investigated through the emission of atomic and molecular lines detected in high-resolution optical/IR spectra of young ...
T. Giannini +11 more
semanticscholar +1 more source
Astronomy & Astrophysics, 2005 Using the UVES echelle spectrograph at the ESO VLT we obtained two-dimensional high-resolution (R = 50 000) spectra of the edge-on disk objects HH30*, HK Tau B, and HV Tau C. For comparison purposes we also observed with the same equipment both the classical T Tauri star HL Tau and the active late-type star LDN 1551-9. The spectra of all three observed
Appenzeller, Immo +2 more
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Dust Disks Around Young Stellar Objects [PDF]
Journal 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
Disks around T Tauri Stars with SPHERE (DARTTS-S). I. SPHERE/IRDIS Polarimetric Imaging of Eight Prominent T Tauri Disks [PDF]
Astrophysical Journal, 2018 We present the first part of our Disks ARound T Tauri Stars with SPHERE (DARTTS-S) survey: observations of eight T Tauri stars that were selected based on their strong (sub)millimeter excesses using SPHERE/IRDIS polarimetric differential imaging in the J
H. Avenhaus +9 more
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Magnetic torques on T Tauri stars: Accreting versus non-accreting systems [PDF]
Astronomy & Astrophysics, 2020 Context. Classical T Tauri stars (CTTs) magnetically interact with their surrounding disks, a process that is thought to regulate their rotational evolution. Aims.
G. Pantolmos, C. Zanni, J. Bouvier
semanticscholar +1 more source
Spectral Energy Distributions of T Tauri Stars with Passive Circumstellar Disks [PDF]
, 1997 We derive hydrostatic, radiative equilibrium models for passive disks surrounding T Tauri stars. Each disk is encased by an optically thin layer of superheated dust grains.
E. Chiang, P. Goldreich
semanticscholar +1 more source
Photometric and spectroscopic study of five pre-main sequence stars in the vicinity of NGC 7129 [PDF]
Serbian 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.
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Machine-learning Morphological Classification of TESS Light Curves of T Tauri Stars
The 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
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