The gasdynamics of compact relativistic jets
1988; IOP Publishing; Volume: 334; Linguagem: Inglês
10.1086/166858
ISSN1538-4357
AutoresRuth A. Daly, Alan P. Marscher,
Tópico(s)Gamma-ray bursts and supernovae
Resumoview Abstract Citations (180) References (23) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Gasdynamics of Compact Relativistic Jets Daly, Ruth A. ; Marscher, Alan P. Abstract We explore the gasdynamics of compact relativistic jets by analyzing a specific idealized flow problem using the method of characteristics. The basic flow pattern of the gas and pressure waves within a jet experiencing a drop in external pressure is calculated, with analytic expressions given for many of the important parameters. Scaling laws which relate the intrinsic properties of the jet to the pressure of the surrounding medium are obtained and discussed. The physical properties of the jet depend critically on the value and abruptness of the decrease in external pressure, as well as on the initial Lorentz factor of the flow. A variety of flow patterns can result, including jets of oscillating cross section, jets with standing shocks, and broad, nearly hollow beams which can break up into multiple jets. These results are discussed in relation to the observed characteristics of superluminal radio sources in general and the superluminal quasar 4C 39.25 in particular. Publication: The Astrophysical Journal Pub Date: November 1988 DOI: 10.1086/166858 Bibcode: 1988ApJ...334..539D Keywords: Active Galactic Nuclei; Gas Dynamics; Quasars; Radio Jets (Astronomy); Relativistic Particles; Axisymmetric Flow; Brightness Distribution; Gas Pressure; Lorentz Gas; Pressure Gradients; Astrophysics; GALAXIES: JETS; HYDRODYNAMICS; QUASARS; RELATIVITY full text sources ADS | data products SIMBAD (1) NED (1)
Referência(s)