Results 11 to 20 of about 58,006 (237)

CANDIDATE WATER VAPOR LINES TO LOCATE THE H2O SNOWLINE THROUGH HIGH-DISPERSION SPECTROSCOPIC OBSERVATIONS. I. THE CASE OF A T TAURI STAR [PDF]

open access: green, 2016
Inside the H2O snowline of protoplanetary disks, water evaporates from the dust-grain surface into the gas phase, whereas it is frozen out onto the dust in the cold region beyond the snowline. H2O ice enhances the solid material in the cold outer part of
Shota Notsu   +6 more
openalex   +3 more sources

A break in the gas and dust surface density of the disc around the T Tauri star IM Lupi [PDF]

open access: bronze, 2009
Aims. We study the distribution and physical properties of molecular gas in the disc around the T Tauri star IM Lup on scales close to 200 AU. We investigate how well the gas and dust distributions compare and work towards a unified disc model that can ...
Olja Panić   +3 more
openalex   +3 more sources

PHOTO-REVERBERATION MAPPING OF A PROTOPLANETARY ACCRETION DISK AROUND A T TAURI STAR [PDF]

open access: green, 2016
Theoretical models and spectroscopic observations of newborn stars suggest that protoplantary disks have an inner “wall” at a distance set by the disk interaction with the star.
Huan Meng   +13 more
openalex   +3 more sources

Magnetometry of the classical T Tauri star GQ Lup: non-stationary dynamos and spin evolution of young Suns [PDF]

open access: bronze, 2012
We report here results of spectropolarimetric observations of the classical T Tauri star (cTTS) GQ Lup carried out with ESPaDOnS at the Canada–France–Hawaii Telescope (CFHT) in the framework of the ‘Magnetic Protostars and Planets’ (MaPP) programme, and ...
J.‐F. Donati   +8 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

Is T Tauri North a “Classical” T Tauri Star? [PDF]

open access: yesAstrophysical Journal, 2020
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 ...
C. Flores, B. Reipurth, M. Connelley
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

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

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

Home - About - Disclaimer - Privacy