Effects of a solid surface on jet formation around neutron stars

Abstract

We present two numerical simulations of an accretion flow from a rotating torus onto a compact object with and without a solid surface -- representing a neutron star and a black hole -- and investigate its influence on the process of jet formation. We report the emergence of an additional ejection component, launched by thermal pressure inside a boundary layer (BL) around the neutron star and examine its structure. Finally, we suggest improvements for future models.

7 pages, 11 figures, accepted for publication in A & A

References in corpus (11)

• Magneto-Centrifugal Launching of Jets from Accretion Disks. I: Cold Axisymmetric Flows
• Magnetized Accretion-Ejection Structures: 2.5D MHD simulations of continuous Ideal Jet launching from resistive accretion disks
• Magnetohydrodynamical Accretion Flows: Formation of Magnetic Tower Jet and Subsequent Quasi-Steady State
• Radiatively inefficient MHD accretion-ejection structures
• Systematic construction of exact MHD models for astrophysical winds and jets
• Stationary accretion disks launching super fast-magnetosonic MHD jets
• Magneto-Centrifugal Launching of Jets from Accretion Disks. II: Inner Disk-Driven Winds
• A class of exact MHD models for astrophysical jets
• The absence of jets in cataclysmic variable stars
• Launching jets from the boundary layer of accretion disks in young stellar objects
• Hydrodynamical simulations of the jet in the symbiotic star MWC 560 I. Structure, emission and synthetic absorption line profiles