Launching jets from accretion belts

Abstract

We propose that sub-Keplerian accretion belts around stars might launch jets. The sub-Keplerian inflow does not form a rotationally supported accretion disk, but it rather reaches the accreting object from a wide solid angle. The basic ingredients of the flow are a turbulent region where the accretion belt interacts with the accreting object via a shear layer, and two avoidance regions on the poles where the accretion rate is very low. A dynamo that is developed in the shear layer amplifies magnetic fields to high values. It is likely that the amplified magnetic fields form polar outflows from the avoidance regions. Our speculative belt-launched jets model has implications to a rich variety of astrophysical objects, from the removal of common envelopes to the explosion of core collapse supernovae by jittering jets.

arXiv commentResearch in Astronomy and Astrophysics, in press

References in corpus (24)

• Dynamo action by differential rotation in a stably stratified stellar interior
• A large scale dynamo and magnetoturbulence in rapidly rotating core-collapse supernovae
• An AMR Study of the Common Envelope Phase of Binary Evolution
• MHD simulations of accretion onto a dipolar magnetosphere. II. Magnetospheric ejections and stellar spin-down
• Simulating the Common Envelope Phase of a Red Giant Using SPH and Uniform Grid Codes
• MHD simulations of jet acceleration from Keplerian accretion disks: the effects of disk resistivity
• On the alpha formalism for the common envelope interaction
• Magnetized Accretion-Ejection Structures: 2.5D MHD simulations of continuous Ideal Jet launching from resistive accretion disks
• Hydrodynamic moving-mesh simulations of the common envelope phase in binary stellar systems
• Spread of Matter over a Neutron-Star Surface During Disk Accretion: Deceleration of Rapid Rotation
• Stationary accretion disks launching super fast-magnetosonic MHD jets
• Bipolar jets launched from magnetically diffusive accretion disks. I. Ejection efficiency vs field strength and diffusivity
• Large scale magnetic fields in viscous resistive accretion disks. I. Ejection from weakly magnetized disks
• Energy and Angular Momentum Deposition During Common Envelope Evolution
• Magneto-Centrifugal Launching of Jets from Accretion Disks. II: Inner Disk-Driven Winds
• A call for a paradigm shift from neutrino-driven to jet-driven core-collapse supernova mechanisms
• Angular momentum fluctuations in the convective helium shell of massive stars
• Binary interactions with high accretion rates onto main sequence stars
• Implications of turbulence for jets in core-collapse supernova explosions
• Wobbling and precessing jets from warped disks in binary systems
• A model for the jet-disk connection in BH accreting systems
• Energy Extraction from Spinning Black Holes via Relativistic Jets
• Final common envelope ejection by migration and jets
• Jittering-jets explosion triggered by the standing accretion shock instability

Cited by in corpus (24)

• The jet feedback mechanism (jfm) in stars, galaxies and clusters
• Angular momentum fluctuations in the convective helium shell of massive stars
• Simulating the Onset of Grazing Envelope Evolution of Binary Stars
• The role of jets in exploding supernovae and in shaping their remnants
• Operation of the jet feedback mechanism (JFM) in intermediate luminosity optical transients (ILOTs)
• Jets launched at magnetar birth cannot be ignored
• Energizing the last phase of common envelope removal
• Supplying angular momentum to the jittering jets explosion mechanism using inner convection layers
• Jets in Common Envelopes: a low mass main sequence star in a red giant
• Reviving the stalled shock by jittering jets in core collapse supernovae: jets from the standing accretion shock instability
• The two promising scenarios to explode core collapse supernovae
• Boosting jittering jets by neutrino heating in core collapse supernovae
• Remnant masses of core collapse supernovae in the jittering jets explosion mechanism
• The implications of large binding energies of massive stripped core collapse supernova progenitors on the explosion mechanism
• Explaining the morphology of supernova remnant (SNR) 1987A with the jittering jets explosion mechanism
• The magnetar model of the superluminous supernova GAIA16apd and the explosion jet feedback mechanism (JFM)
• Grazing envelope evolution toward Type IIb supernovae
• Amplifying magnetic fields of a newly born neutron star by stochastic angular momentum accretion in core collapse supernovae
• Jittering-jets explosion triggered by the standing accretion shock instability
• Dissecting a SN impostor's circumstellar medium: MUSEing about the SHAPE of eta Car's outer ejecta
• Implications of post-kick jets in core collapse supernovae
• On the nature of jets from a main sequence companion at the onset of common envelope evolution
• A minority view on the majority: A personal meeting summary on the explosion mechanism of supernovae
• The depletion of the red supergiant envelope radiative zone during common envelope evolution