Physical properties of the jet in 0836+710 revealed by its transversal structure

Abstract

Studying the internal structure of extragalactic jets is crucial for understanding their physics. The Japanese-led space VLBI project VSOP has presented an opportunity for such studies, by reaching baseline lengths of up to 36,000 km and resolving structures down to an angular size of $\approx 0.3$ mas at 5 GHz. VSOP observations of the jet in 0836+710 at 1.6 and 5 GHz have enabled tracing of the radial structure of the flow on scales from 2 mas to 200 mas along the jet and determination of the wavelengths of individual oscillatory modes responsible for the formation of the structure observed. We apply linear stability analysis to identify the oscillatory modes with modes of Kelvin-Helmholtz instability that match the wavelengths of the structures observed. We find that the jet structure in 0836+710 can be reproduced by the helical surface mode and a combination of the helical and elliptic body modes of Kelvin-Helmholtz instability. Our results indicate that the jet is substantially stratified and different modes of the instability grow inside the jet at different distances to the jet axis. The helical surface mode can be driven externally, and we discuss the implications of the driving frequency on the physics of the active nucleus in 0836+710.

arXiv commentAccepted for publication in Astronomy & Astrophysics Letters

References in corpus (5)

• Gamma-ray loud quasars: a view with BeppoSAX
• Gamma-loud quasars: a view with BeppoSAX
• The role of Kelvin-Helmholtz instability in the internal structure of relativistic outflows. The case of the jet in 3C 273
• Observational Evidence of Accretion Disk-Caused Jet Precession in Galactic Nuclei
• Dual frequency VSOP imaging of the jet in S5 0836+710

Cited by in corpus (20)

• Stability of three-dimensional relativistic jets: implications for jet collimation
• Anatomy of helical relativistic jets: The case of S5 0836+710
• Jet collimation in NGC 315 and other nearby AGN
• Reading M87's DNA: A Double Helix revealing a large scale Helical Magnetic Field
• Using Twisted Filaments to Model the Inner Jet in M87
• The Trails of Superluminal Jet Components in 3C111
• Studying the evolution of AGB stars in the Gaia epoch
• Linear Theory of the Rayleigh-Taylor Instability at a Discontinuous Surface of a Relativistic Flow
• On the nature of the most obscured C-rich AGB stars in the Magellanic Clouds
• High Resolution Radio Astronomy Using Very Long Baseline Interferometry
• Derivation of the physical parameters of the jet in S5 0836+710 from stability analysis
• S5 0836+710: An FRII jet disrupted by the growth of a helical instability?
• Multiband RadioAstron space VLBI imaging of the jet in quasar S5 0836+710
• Jet stability, dynamics and energy transport
• Detection of multiple velocity components in partially overlapping emitting regions
• Linear and nonlinear evolution of current-carrying highly magnetized jets
• Direct Simulation Monte Carlo for astrophysical flows: I. Motivation and methodology
• Jet-Feedback on kpc scales: a review
• Blob formation and ejection from the radiative inefficient accretion flow around massive black hole
• Sub-milliarcsecond imaging of a bright flare and ejection event in the extragalactic jet 3C 111