Results 11 to 20 of about 77,803 (191)

Turbulence in circumstellar disks [PDF]

open access: yesAstronomy & Astrophysics, 2004
We investigate the relationship between circumstellar disks and the Taylor-Couette flow. Using the Reynolds similarity principle, this results in a number of parameter-free predictions about stability of the disks, and their turbulent transport ...
B. Dubrulle   +5 more
core   +5 more sources

Observations of circumstellar disks [PDF]

open access: yesProceedings of the International Astronomical Union, 2010
In this review I will present recent results obtained between 2005, which was the last “Be-stars” meeting in Sapporo, and 2010, on the observations of circumstellar disks around active hot stars.
Philippe Stee
core   +2 more sources

Dust in circumstellar disks [PDF]

open access: yes, 2006
This thesis presents observational and theoretical studies of the size and spatial distribution of dust particles in circumstellar disks. Using millimetre interferometric observations of optically thick disks around T Tauri stars, I provide conclusive
Rodmann, Jens
core   +3 more sources

Magnetic fields in circumstellar disks [PDF]

open access: yesAstronomy & Astrophysics, 2017
Context. Recent high angular resolution polarimetric continuum observations of circumstellar disks provide new insights into their magnetic field. However, direct constraints are limited to the plane-of-sky component of the magnetic field.
M. Flock, S. Wolf, R. Brauer
core   +3 more sources

Modelling and observations of molecules in discs around young stars [PDF]

open access: yes, 2013
This thesis contains a study of molecules within circumstellar discs around young stars. Firstly, the chemistry of a disc around a young, Class 0 protostar is modelled.
Ilee, John David
core   +6 more sources

Vortices in Circumstellar Disks [PDF]

open access: yesThe Astrophysical Journal, 1995
uuencoded compressed PostScript file containing 30 pages. 5 figures available upon request. Submitted to ApJ.
Adams, Fred, Watkins, Richard
openaire   +2 more sources

Dynamics of Circumstellar Disks [PDF]

open access: yesThe Astrophysical Journal, 1998
We present a series of 2-dimensional hydrodynamic simulations of massive disks around protostars. We simulate the same physical problem using both a `Piecewise Parabolic Method' (PPM) code and a `Smoothed Particle Hydrodynamic' (SPH) code, and analyze their differences.
Nelson, Andrew F.   +3 more
openaire   +2 more sources

Studies of Young, Star-forming Circumstellar Disks [PDF]

open access: yes
Disks of gas and dust around forming stars -- circumstellar disks -- last only a few million years. This is a very small fraction of the entire lifetime of Sun-like stars, several billion years.
Bae, Jaehan
core   +7 more sources

DIAGNOSING CIRCUMSTELLAR DEBRIS DISKS [PDF]

open access: yesThe Astrophysical Journal, 2010
Accepted for publication in the Astrophysical ...
openaire   +2 more sources

Microlensing of circumstellar envelopes III. Line profiles from stellar winds in homologous expansion [PDF]

open access: yes, 2006
This paper examines line profile evolution due to the linear expansion of circumstellar material obsverved during a microlensing event. This work extends our previous papers on emission line profile evolution from radial and azimuthal flow during point ...
Bryce, H.M.   +8 more
core   +1 more source

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