Results 1 to 10 of about 7,215 (204)

Fast transition between classical and weak lined T Tauri stars due to external UV dissipation [PDF]

open access: green, 2007
The discovery of optical jets immersed in the strong UV radiation field of the Rosette Nebula sheds new light on, but meanwhile poses challenges to, the study of externally irradiated jets. The jet systems in the Rosette are found to have a high state of
J.Z. Li, Travis A. Rector
openalex   +4 more sources

The Magnetic Fields of Classical T Tauri Stars [PDF]

open access: bronze, 2007
We report new magnetic field measurements for 14 classical T Tauri stars (CTTSs). We combine these data with one previous field determination in order to compare our observed field strengths with the field strengths predicted by magnetospheric accretion ...
Christopher M. Johns‐Krull
openalex   +3 more sources

Profiles of Strong Permitted Lines in Classical T Tauri Stars [PDF]

open access: bronze, 2000
We present a spectral analysis of 30 T Tauri stars observed with the Hamilton echelle spectrograph over more than a decade. One goal is to test magnetospheric accretion model predictions.
S. H. P. Alencar, Gibor Basri
openalex   +3 more sources

Role of local absorption on the X-ray emission from MHD accretion shocks in classical T Tauri stars [PDF]

open access: diamondEPJ Web of Conferences, 2014
Accretion processes onto classical T Tauri stars (CTTSs) are believed to generate shocks at the stellar surface due to the impact of supersonic downflowing plasma.
Bonito   +8 more
doaj   +2 more sources

Starspots as an Explanation for the Mysterious IYJ Continuum Excess Emission in Classical T Tauri Stars

open access: goldThe Astrophysical Journal
An accurate estimation of the continuum excess emission from accretion spots and inner circumstellar disk regions is crucial for a proper derivation of fundamental stellar parameters in accreting systems.
Facundo Pérez Paolino   +4 more
doaj   +2 more sources

On the formation of H  line emission around classical T Tauri stars [PDF]

open access: bronzeMonthly Notices of the Royal Astronomical Society, 2006
Timothy Harries
exaly   +2 more sources

Spectral variability of classical T Tauri stars accreting in an unstable regime [PDF]

open access: greenMonthly Notices of the Royal Astronomical Society, 2013
Ryuichi Kurosawa, M. M. Romanova
exaly   +2 more sources

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

Dust Around T Tauri Stars [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2011
To reproduce the multiple broad peaks and the fine spectral features in the spectral energy distributions (SEDs) of T Tauri stars, we model dust around T Tauri stars using a radiative transfer model for multiple isothermal circumstellar dust shells. We
Kyung-Won Suh, Young-Joo Kwon
doaj   +1 more source

Multidimensional models of hydrogen and helium emission line profiles for classical T Tauri stars: method, tests and examples [PDF]

open access: greenMonthly Notices of the Royal Astronomical Society, 2011
Ryuichi Kurosawa   +2 more
exaly   +2 more sources

Home - About - Disclaimer - Privacy