Results 31 to 40 of about 48,168 (266)
Twenty Years of Timing SS433 [PDF]
, 2001 We present observations of the optical ``moving lines'' in spectra of the Galactic relativistic jet source SS433 spread over a twenty year baseline from 1979 to 1999.
B. Margon +7 more
core +2 more sources
Particle acceleration in astrophysical jets [PDF]
New Astronomy Reviews, 2020 In this chapter, we review some features of particle acceleration in astrophysical jets. We begin by describing four observational results relating to the topic, with particular emphasis on jets in active galactic nuclei and parallels between different sources.
Matthews, JH, Bell, AR, Blundell, KM
openaire +3 more sources
Direct measurement of the jet geometry in Seyfert galaxies [PDF]
, 1999 We demonstrate that, by combining optical, radio and X-ray observations of a Seyfert, it is possible to provide a direct measurement of the angle $\beta$ between the direction of the radio jet and the normal to the plane of the spiral host galaxy.
A. L. Kinney +11 more
core +2 more sources
Proceedings of the International Astronomical Union, 2010 AbstractIn this published note I attempt to sketch my understanding of the universal working scheme of all the astrophysical jet sources, or ‘bipolar flows’, on both stellar and galactic scales, also called ‘microquasars’, and ‘quasars’. A crucial building block will be their medium: extremely relativistic e±-pair plasma performing quasi loss-free E ...
openaire +1 more source
Galaxies, 2019 The particle-in-cell (PIC) method was developed to investigate microscopic phenomena, and with the advances in computing power, newly developed codes have been used for several fields, such as astrophysical, magnetospheric, and solar plasmas.
Ken-Ichi Nishikawa +10 more
doaj +1 more source
Toward Microarcsecond Astrometry for the Innermost Wobbling Jet of the BL Lacertae Object OJ 287
The Astrophysical Journal Letters, 2023 The BL Lacertae object OJ 287 is a very unusual quasar producing a wobbling radio jet and some double-peaked optical outbursts with a possible period of about 12 yr for more than one century.
Xiaopeng Cheng +5 more
doaj +1 more source
Linear Stability Analysis of Relativistic Magnetized Jets: Methodology
Universe, 2023 The stability of astrophysical jets in the linear regime is investigated by presenting a methodology to find the growth rates of the various instabilities.
Nektarios Vlahakis
doaj +1 more source
Inherent and Local Magnetic Field Structures in Jets from Active Galactic Nuclei
Galaxies, 2021 In theoretical models for the electromagnetic launching of astrophysical jets, a helical magnetic (B)-field component is generated through the winding up of an initial longitudinal field component by the rotation of the cental black hole and accretion ...
Denise C. Gabuzda
doaj +1 more source
Dynamics and Structure of Three-Dimensional Trans-Alfvenic Jets. II. The Effect of Density and Winds
, 2002 Two three-dimensional magnetohydrodynamical simulations of strongly magnetized conical jets, one with a poloidal and one with a helical magnetic field, have been performed.
Alexander Rosen +9 more
core +1 more source
Real-time evolution of a large-scale relativistic jet [PDF]
, 2015 Context. Astrophysical jets are ubiquitous in the Universe on all scales, but their large-scale dynamics and evolution in time are hard to observe since they usually develop at a very slow pace. Aims.
Luque-Escamilla, Pedro L. +4 more
core +3 more sources