Results 31 to 40 of about 10,538,954 (217)
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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Kinematics of T Tauri stars in nearby star forming regions [PDF]
, 1999 The kinematics of T Tauri stars in the nearby star forming regions Taurus-Auriga, Chamaeleon, Lupus and Scorpius-Centaurus is studied using proper motions from the Hipparcos, PPM, ACT, TRC and STARNET proper motion catalogues.
Frink, Sabine
core +1 more source
A Comprehensive Analysis of Rovibrational CO in the Era of JWST
The Astronomical JournalWe present an analysis of CO rovibrational emission lines in the 183 infrared spectra of nearby Class II objects obtained with the NIRSPEC instrument on the Keck II telescope over the past two decades.
D. Annie Dickson-Vandervelde +5 more
doaj +1 more source
LIGHT CURVE TYPES OF CLASSIC T TAURI STARS
Odessa Astronomical Publications, 2016 By using the archive photometric data’s obtained for a long time intervals we have carried out a master light curves of 28 classical T Tauri type stars. For the physical character of variability mainly 5 type light curves can be separated.
N. Z. Ismailov, H. N. Adygezalzade
doaj +1 more source
Determining Dust Properties in Protoplanetary Disks: SED-derived Masses and Settling with ALMA
The Astrophysical Journal, 2023 We present spectral energy distribution (SED) modeling of 338 disks around T Tauri stars from 11 star-forming regions, ranging from ∼0.5 to 10 Myr old.
Anneliese M. Rilinger +5 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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Tests of Disk-locking in T Tauri Stars of the Orion Nebula Cluster
The Astrophysical JournalWe look for specific correlations predicted by magnetospheric accretion models for young stars that assume disk-locking using stellar and accretion parameters derived from low-resolution HST-STIS spectra of 33 T Tauri stars in the Orion Nebula Cluster ...
Margaret A. Mueller +3 more
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The effect of variable stellar magnetic fields on the spin state of T Tauri stars
Astronomy & AstrophysicsUnderstanding the stellar spin evolution of young stars is crucial for understanding the evolution of protoplanetary disks and, consequently, the formation of exoplanets.
Gehrig Lukas, Steiner Daniel
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