Results 11 to 20 of about 35,902 (340)

Stellar Signatures of AGN Jet Triggered Star Formation [PDF]

open access: yesThe Astrophysical Journal, 2014
To investigate feedback between relativistic jets emanating from Active Galactic Nuclei (AGN) and the stellar population of the host galaxy, we analyze the long-term evolution of the galaxy-scale simulations by Gaibler et al.
Bryan, Sarah   +4 more
core   +3 more sources

Unifying the Zoo of Jet-Driven Stellar Explosions [PDF]

open access: yesThe Astrophysical Journal, 2012
We present a set of numerical simulations of stellar explosions induced by relativistic jets emanating from a central engine sitting at the center of compact, dying stars. We explore a wide range of durations of the central engine activity, two candidate
Begelman, Micthell C.   +3 more
core   +2 more sources

The fastest components in stellar jets [PDF]

open access: greenBulletin 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.
Hans Moritz Günther   +10 more
  +6 more sources

Steady stellar jets [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1987
This paper contains some results of axisymmetric numerical calculations of the shock structures in steady supersonic jets in which there is significant radiative cooling. We find that the regularly spaced shock cells found in adiabatic jets still occur and that cooling can by itself induce shocks if it is fast enough.
Falle, S. A. E. G.   +2 more
openaire   +1 more source

Magnetic Fields in Stellar Jets [PDF]

open access: yesThe Astrophysical Journal, 2007
Although several lines of evidence suggest that jets from young stars are driven magnetically from accretion disks, existing observations of field strengths in the bow shocks of these flows imply that magnetic fields play only a minor role in the dynamics at these locations. To investigate this apparent discrepancy we performed numerical simulations of
Hartigan, P.   +3 more
openaire   +4 more sources

Velocity asymmetries in young stellar object jets [PDF]

open access: bronze, 2012
Context. It is well established that some YSO jets (e.g. RW Aur) display different propagation speeds between their blue and red shifted parts, a feature possibly associated with the central engine or the environment in which the jet propagates.\ud \ud Aims. To understand the origin of asymmetric YSO jet velocities, we investigate the efficiency of two
T. Matsakos   +9 more
openalex   +3 more sources

Are jets rotating at the launching? [PDF]

open access: yes, 2009
I argue that the Doppler shift asymmetries observed in some young stellar object (YSO) result from the interaction of the jets with the circumstellar gas, rather than from jets' rotation.
Cerqueira   +3 more
core   +1 more source

A model for high-mass microquasar jets under the influence of a strong stellar wind [PDF]

open access: yes, 2019
Context. High-mass microquasars (HMMQs) are systems from which relativistic jets are launched. At the scales of several times the binary system size, the jets are expected to follow a helical path caused by the interaction with a strong stellar wind and ...
Bosch Ramon, Valentí   +2 more
core   +3 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

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