Results 21 to 30 of about 615 (164)

Bipolar Outflows and Stellar Jets [PDF]

open access: yesSymposium - International Astronomical Union, 1987
A wealth of data is now available on the energetic mass outflows that are associated with young stellar objects. This phenomenon is thought to occur at a very early stage in the evolution of stars of almost all masses. The discovery of this energetic event was first made through observations of the rapidly expanding molecular gas that surrounds many of
openaire   +1 more source

Radio jets from young stellar objects [PDF]

open access: yesThe Astronomy and Astrophysics Review, 2018
50 pages, 11 figures, invited review article for The Astronomy and Astrophysics ...
Guillem Anglada   +2 more
openaire   +7 more sources

Relativistic stellar jets: dynamics and non-thermal radiation

open access: yesEPJ Web of Conferences, 2013
Relativistic stellar jets, produced in binary systems called microquasars, propagate through media with different spatial scales releasing their energy in the form of work and radiation from radio to gamma rays.
Bosch-Ramon Valentí
doaj   +1 more source

A Global Inventory of Feedback

open access: yesGalaxies, 2023
Feedback from both supermassive black holes and massive stars plays a fundamental role in the evolution of galaxies and the inter-galactic medium. In this paper, we use available data to estimate the total amount of kinetic energy and momentum created ...
Timothy M. Heckman, Philip N. Best
doaj   +1 more source

Theory of Stellar and Extragalactic Jets [PDF]

open access: yesInternational 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
openaire   +2 more sources

The Effect of a Stellar Magnetic Variation on the Jet Velocity [PDF]

open access: yesThe Astrophysical Journal, 2008
5 pages, 3 figures, accepted for publication in ...
de Colle, Fabio   +2 more
openaire   +3 more sources

The Jet and Circumburst Stellar Wind of GRB 980519 [PDF]

open access: yesThe Astrophysical Journal, 2001
11 pages, including 2 tables and 3 figures.
Jaunsen, A. O.   +8 more
openaire   +2 more sources

Diagnostics of inhomogeneous stellar jets [PDF]

open access: yesAstronomy & 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.
openaire   +2 more sources

The fastest components in stellar jets

open access: yesBulletin of the American Astronomical Society, 2019
Outflows and jets are a crucial component of the star formation process. The innermost components of those jets are launched close to the star and thus probe the connection between star, disk, and magnetic field. Observations with high spatial resolution in the UV and X-rays are required to probe these fast winds.
Günther, Hans M.   +11 more
openaire   +4 more sources

Simulations of Gamma-Ray Emission from Magnetized Microquasar Jets

open access: yesAdvances in High Energy Physics, 2018
In this work, we simulate γ-rays created in the hadronic jets of the compact object in binary stellar systems known as microquasars. We utilize as the main computational tool the 3D relativistic magnetohydrodynamical code PLUTO combined with in-house ...
Odysseas Kosmas, Theodoros Smponias
doaj   +1 more source

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