English
Related papers

Related papers: The minimum jet power and equipartition

200 papers

Theoretical models for the production of relativistic jets from active galactic nuclei predict that jet power arises from the spin and mass of the central black hole, as well as the magnetic field near the event horizon. The physical…

High Energy Astrophysical Phenomena · Physics 2015-06-23 G. Ghisellini , F. Tavecchio , L. Maraschi , A. Celotti , T. Sbarrato

We have not identified for sure what is the mechanism launching, accelerating and collimating relativistic jets. The two most likely possibilities are the gravitational energy of the accreting matter or the rotational energy of a spinning…

High Energy Astrophysical Phenomena · Physics 2018-09-21 Gabriele Ghisellini

The problem of Astrophysical Jet formation from relativistic accretion disks through the establishment of relativistic disk-powerful jet equilibrium structure is studied applying the Beltrami-Bernoulli equilibrium approach of Shatashvili &…

High Energy Astrophysical Phenomena · Physics 2024-06-05 E. Katsadze , N. Revazashvili , N. L. Shatashvili

A simple model for medium modification of the jet function can be used to extract the jet energy loss distribution through a parameterized form. We carry out a comprehensive Bayesian analysis of the world data on single inclusive jet…

High Energy Physics - Phenomenology · Physics 2023-10-06 Jordan Wu , Weiyao Ke , Xin-Nian Wang

The acceleration of relativistic jets from the Poynting to the matter dominated stage is considered. The are generally two collimation regimes, which we call equilibrium and non-equilibrium, correspondingly. In the first regime, the jet is…

High Energy Astrophysical Phenomena · Physics 2015-05-14 Y. E. Lyubarsky

We calculated the electron-positron pair production rate at the base of the jet of 3C 120 by collisions of photons from the hot accretion flow using the measurement of its average soft gamma-ray spectrum by Compton Gamma Ray Observatory. We…

High Energy Astrophysical Phenomena · Physics 2022-04-06 Andrzej A. Zdziarski , Dakalo G. Phuravhathu , Marek Sikora , Markus Boettcher , James O. Chibueze

Internal shocks caused by fluctuations of the outflow velocity are likely to power the radio to IR emission of the compact jets of X-ray binaries. The dynamics of internal shocks and the resulting spectral energy distribution (SED) of the…

High Energy Astrophysical Phenomena · Physics 2015-06-19 Julien Malzac

In this paper we develop the jet model of Potter & Cotter (2012) to include a magnetically dominated accelerating parabolic base transitioning to a slowly decelerating conical jet with a geometry set by recent radio observations of M87. We…

High Energy Astrophysical Phenomena · Physics 2015-06-12 William J. Potter , Garret Cotter

Radio galaxies are classified into two primary categories based on their morphology: center-brightened FR-I and edge-brightened FR-II. It is believed that the jet power and interactions with the ambient medium govern the deceleration and…

High Energy Astrophysical Phenomena · Physics 2024-09-30 Ayan Bhattacharjee , Jeongbhin Seo , Dongsu Ryu , Hyesung Kang

In this work I review the observational constraints imposed on the energetics and magnetisation of quasar jets, in the context of theoretical expectations. The discussion is focused on issues regarding the jet production efficiency, matter…

High Energy Astrophysical Phenomena · Physics 2016-09-14 Marek Sikora

The jets emanating from the centers of active galactic nuclei (AGN) are among the most energetic objects in the universe. Investigating how the morphology of the jet's synchrotron emission depends on the magnetic nature of the jet's…

High Energy Astrophysical Phenomena · Physics 2021-12-15 Joana A. Kramer , Nicholas R. MacDonald

The power carried by the jet of blazars is large, compared to the luminosity produced by their accretion disk, and is probably in the form of kinetic energy of a normal electron-proton plasma. The Poynting flux is modest, as suggested by…

Astrophysics · Physics 2008-07-18 G. Ghisellini

The commonly used classical equipartition or minimum-energy estimate of total magnetic fields strengths from radio synchrotron intensities is of limited practical use because it is based on the hardly known ratio K of the total energies of…

Astrophysics · Physics 2007-05-23 Rainer Beck , Marita Krause

Using the standard one-zone synchrotron self-Compton (SSC) model and the Markov chain Monte Carlo (MCMC) technique, we systematically analyze the quasi-simultaneous multi-wavelength (MWL) spectral energy distributions (SEDs) of Mrk 421 and…

High Energy Astrophysical Phenomena · Physics 2021-04-28 Xiao-Chun Deng , Wen Hu , Fang-Wu Lu , Ben-Zhong Dai

Our understanding of the unification of jetted AGN has evolved greatly as jet samples have increased in size. Here, based on the largest-ever sample of over 2000 well-sampled jet spectral energy distributions, we examine the synchrotron…

Astrophysics of Galaxies · Physics 2021-05-12 Mary Keenan , Eileen T. Meyer , Markos Georganopoulos , Karthik Reddy , Omar J. French

We present predictions for jet suppression from small to intermediate to very large radius, for low and very high energy jets created in heavy ion collisions at the LHC. We use the hybrid strong/weak coupling model for jet quenching that…

High Energy Physics - Phenomenology · Physics 2020-02-12 Daniel Pablos

We discuss the physical properties of four quasar jets imaged with the Chandra X-ray Observatory in the course of a survey for X-ray emission from radio jets. These objects have sufficient counts to study their spatially resolved…

The infrared (IR)/X-ray correlation of GX 339$-$4 is investigated based on a jet model with a modification by linking the magnetic field at the jet base to the accretion rate of the inner accretion flow though the the equilibrium between…

High Energy Astrophysical Phenomena · Physics 2025-05-27 Chang-Yin Huang , Yi Xie

Extragalactic relativistic jets are engines able to carry out to large distances a huge amount of power, not only in the form of radiation, but especially in the form of kinetic energy of matter and fields. As such, they can be thought as…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 G. Ghisellini

Magnetic field threading a black hole ergosphere is believed to play the key role in both driving the powerful relativistic jets observed in active galactic nuclei and extracting the rotational energy from a black hole via Blandford-Znajek…

High Energy Astrophysical Phenomena · Physics 2018-03-23 E. Nokhrina