scholarly journals A Possible Mechanism for Wiggling Protostellar Jets from Three-Dimensional Simulations in a Stratified Ambient Medium

1996 ◽  
Vol 460 (2) ◽  
Author(s):  
Elisabete M. de Gouveia Dal Pino, ◽  
Mark Birkinshaw, ◽  
Willy Benz
Keyword(s):  
Ambient Medium ◽  
Three Dimensional ◽  
Protostellar Jets ◽  
Three Dimensional Simulations

Three-dimensional simulations of protostellar jets

1993 ◽  
Vol 410 ◽  
pp. 686 ◽  
Author(s):  
Elisabete M. de Gouveia dal Pino ◽  
Willy Benz
Keyword(s):  
Three Dimensional ◽  
Protostellar Jets ◽  
Three Dimensional Simulations

scholarly journals Three‐Dimensional Simulations of Protostellar Jets in Stratified Ambient Media

1996 ◽  
Vol 471 (2) ◽  
pp. 832-846 ◽  
Author(s):  
Elisabete M. de Gouveia Dal Pino ◽  
Mark Birkinshaw
Keyword(s):  
Three Dimensional ◽  
Ambient Media ◽  
Protostellar Jets ◽  
Three Dimensional Simulations

scholarly journals Long-term FRII jet evolution in dense environments

2021 ◽  
Author(s):  
Manel Perucho ◽  
José-María Martí ◽  
Vicent Quilis
Keyword(s):  
Ambient Medium ◽  
Three Dimensional ◽  
Linear Perturbation ◽  
Physical Parameters ◽  
Global Dynamics ◽  
Reverse Shock ◽  
Shock Heating ◽  
Thermal Cooling ◽  
Three Dimensional Simulations

Abstract We present long-term numerical three-dimensional simulations of a relativistic outflow propagating through a galactic ambient medium and environment, up to distances ∼100 kpc. Our aim is to study the role of dense media in the global dynamics of the radio source. We use a relativistic gas equation of state, and a basic description of thermal cooling terms. In previous work, we showed that a linear perturbation could enhance the jet propagation during the early phases of evolution, by introducing obliquity to the jet reverse shock. Here, we show that this effect is reduced in denser media. We find that the dentist-drill effect acts earlier, due to slower jet propagation and an increased growth of the helical instability. The global morphology of the jet is less elongated, with more prominent lobes. The fundamental physical parameters of the jet generated structure derived from our simulations fall within the estimated values derived for FRII jets in the 3C sample. In agreement with previous axisymmetric and three dimensional simulations in lower density media, we conclude that shock heating of the interstellar and intergalactic media is very efficient in the case of powerful, relativistic jets.

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