Results 21 to 30 of about 35,594 (296)
Braking down an accreting protostar: disc-locking, disc winds, stellar winds, X-winds and Magnetospheric Ejecta [PDF]
, 2013 Classical T Tauri stars are low mass young forming stars that are surrounded by a circumstellar accretion disc from which they gain mass. Despite this accretion and their own contraction that should both lead to their spin up, these stars seem to ...
Ferreira, Jonathan
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Theory of Stellar and Extragalactic Jets [PDF]
International Astronomical Union Colloquium, 1986 AbstractDifferent types of astrophysical jets are briefly described and the wide differences in their observed properties are emphasized. Various physical mechanisms that have been proposed for creating jets, based on gas dynamical, magnetic, and radiative stresses are briefly reviewed. It is argued that magnetic fields are probably generally important
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Diagnostics of inhomogeneous stellar jets [PDF]
Astronomy & Astrophysics, 2008 CONTEXT: In the interpretation of stellar jet observations, the physical parameters are usually determined from emission line ratios, obtained from spectroscopic observations or using the information contained in narrow band images. The basic hypothesis in the interpretation of the observations is that the emitting region is homogeneous along the line ...
De Colle, F., del Burgo, C., Raga, A. C.
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Supernova Hosts for Gamma-Ray Burst Jets: Dynamical Constraints [PDF]
, 2002 I constrain a possible supernova origin for gamma-ray bursts by modeling the dynamical interaction between a relativistic jet and a stellar envelope surrounding it.
Chandrasekhar S. +10 more
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Numerical simulations of stellar jets and comparison between synthetic and observed maps: clues to the launch mechanism [PDF]
, 2014 High angular resolution spectra obtained with the Hubble Space Telescope Imaging Spectrograph (HST/STIS) provide rich morphological and kinematical information about the stellar jet phenomenon, which allows us to test theoretical models efficiently.
Bacciotti, Francesca +4 more
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Steady, partially ionized stellar jets
The Astrophysical Journal, 1990 Un modele de jet stellaire stationnaire a symetrie cylindrique non-adiabatique de nombre de Mach eleve, qui inclut les effets de l'ionisation hors-equilibre et du refroidissement, est developpe. Les caracteristiques generales de ces jets sont decrites et leurs implications pour l'interpretation des jets observes analysees.
Alejandro C. Raga +2 more
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Hypersonic jets in astrophysical conditions: focus on spreading and asymmetric stability properties
New Journal of Physics, 2014 High Mach number jets emanating from young stars show remarkable collimation, low opening angle and resilience against the growth of instabilities, especially the asymmetric ones. In recent laboratory experiments instances of asymmetric three-dimensional
M Belan +4 more
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Bubbles in Planetary Nebulae and Clusters of Galaxies: Jet Bending
, 2006 We study the bending of jets in binary stellar systems. A compact companion accretes mass from the slow wind of the mass-losing primary star, forms an accretion disk, and blows two opposite jets. These fast jets are bent by the slow wind.
Bisker, Gili, Soker, Noam
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Two-component jet simulations: II. Combining analytical disk and stellar MHD outflow solutions [PDF]
, 2009 Theoretical arguments along with observational data of YSO jets suggest the presence of two steady components: a disk wind type outflow needed to explain the observed high mass loss rates and a stellar wind type outflow probably accounting for the ...
Massaglia, S. +6 more
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Collective non-thermal emission from an extragalactic jet interacting with stars
, 2017 The central regions of galaxies are complex environments, rich in evolved and/or massive stars. For galaxies hosting an active galactic nucleus (AGN) with jets, the interaction of the jets with the winds of the stars within can lead to particle ...
Bosch-Ramon, Valentí +2 more
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