Results 21 to 30 of about 31,062 (274)
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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The Structure and Emission of the Accretion Shock in T Tauri Stars. II. The Ultraviolet-Continuum Emission [PDF]
, 1998 We compare accretion-shock models with optical and ultraviolet spectra of pre-main-sequence stars to (1) make the first determinations of accretion rates in intermediate-mass T Tauri stars from continuum emission and (2) derive improved estimates of ...
E. Gullbring +3 more
semanticscholar +1 more source
Modelling mid-infrared molecular emission lines from T Tauri stars [PDF]
Astronomy & Astrophysics, 2018 We introduce a new modelling framework including the Fast Line Tracer (FLITS) to simulate infrared line emission spectra from protoplanetary discs. This paper focusses on the mid-IR spectral region between 9.7 and 40 μm for T Tauri stars.
P. Woitke +7 more
semanticscholar +1 more source
International Astronomical Union Colloquium, 1990 This review concerns rapid variability, on time-scales of a few hours or less, occurring on T Tauri stars (TTS). There are several recent reviews on observed properties of TTS (e.g. Appenzeller & Mundt 1989, Bertout 1989, Gahm 1990a, Kuhi & Cram 1989), some with more emphasis on “flare-like” activity (Feigelson et al.
openaire +2 more sources
Discovery of Two Different Full Disk Evolutionary Patterns of M-type T Tauri Stars with LAMOST DR8
The Astrophysical Journal, 2023 The full disk, full of gas and dust, determines the upper limit of planet masses, and its lifetime is critical for planet formation, especially for giant planets.
Hasitieer Haerken +4 more
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Evolutionary status of T Tauri stars [PDF]
Research in Astronomy and Astrophysics, 2018 The problem of the determination of T Tauri stars masses and ages using their evolutionary status is discussed. We test of pre-main sequence evolutionary models of D'Antona \& Mazzitelli (1994), Dotter et al. (2008), Bressan et al. (2012) and Chen et al. (2014), Baraffe et al.
Eretnova, Olga V., Dudorov, Alexander E.
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Outflows and particle acceleration in the accretion disks of young stars [PDF]
EPJ Web of Conferences, 2019 Magneto-gas-dynamic (MGD) outflows from the accretion disks of T Tauri stars with fossil large-scale magnetic fileld are investigated. We consider two mechanisms of the outflows: rise of the magnetic flux tubes (MFT) formed in the regions of efficient ...
Khaibrakhmanov Sergey, Dudorov Alexander
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Circular polarization in T Tauri stars [PDF]
The Astrophysical Journal, 1986 We report the detection of circular polarization in three T Tauri stars with known intrinsic linear polarization. A circumstellar origin is required.
P. Bastien, R. Nadeau
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A Survey and Analysis of Spitzer Infrared Spectrograph Spectra of T Tauri Stars in Taurus [PDF]
, 2006 We present mid-infrared spectra of T Tauri stars in the Taurus star-forming region obtained with the Spitzer Infrared Spectrograph (IRS). For the first time, the 5-36 μm spectra of a large sample of T Tauri stars belonging to the same star-forming region
E. Furlan +22 more
semanticscholar +1 more source
JWST Detects Neon Line Variability in a Protoplanetary Disk
The Astrophysical Journal Letters, 2023 We report the first detection of variability in the mid-infrared neon line emission of a protoplanetary disk by comparing a JWST Mid-InfraRed Instrument Medium Resolution Spectrometer spectrum of SZ Cha taken in 2023 with a Spitzer Infrared Spectrograph ...
C. C. Espaillat +8 more
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