Magnetically Threaded Thin Disks in the Presence of the Quadrupole Magnetic Field
arXiv:2305.04849 · doi:10.1093/mnras/stad2164
Abstract
Neutron stars might have multipole magnetic fields as implied by recent observations of pulsars. The presence of the quadrupole field might have an effect on the interaction between the disc and the neutron star depending on the location of the inner radius of the disc and the strength of the quadrupole field. For a quadrudipole stellar field, we calculate the toroidal field generated within the disc, the magnetospheric radius and the torque exerted onto the star. Also, we deduce the effect of the rotation of the star on the magnetospheric radius which is relevant even for pure dipole magnetic fields.
arXiv comment7 pages, 4 figures, accepted for publication in MNRAS
References in corpus (29)
- PSR J0030+0451 Mass and Radius from NICER Data and Implications for the Properties of Neutron Star Matter
- A NICER View of PSR J0030+0451: Millisecond Pulsar Parameter Estimation
- MHD Simulations of Disk-Magnetized Star Interactions in Quiescent Regime: Funnel Flows and Angular Momentum Transport
- The Propeller Regime of Disk Accretion to a Rapidly Rotating Magnetized Star
- The Disk-Magnetosphere Interaction in the Accretion-Powered Millisecond Pulsar SAX J1808.4-3658
- Magnetorotational supernovae
- A NICER view of PSR J0030+0451: evidence for a global-scale multipolar magnetic field
- Accretion Onto Fast X-Ray Pulsars
- Torque Enhancement, Spin Equilibrium, and Jet Power from Disk-Induced Opening of Pulsar Magnetic Fields
- Chandra Study of a Complete Sample of Millisecond Pulsars in 47Tuc and NGC6397
- The ultra luminous X-ray source NuSTAR J095551+6940.8: A magnetar in a high mass X-ray binary
- Accretion to Stars with Non-dipole Magnetic Fields
- Three-dimensional Simulations of Accretion to Stars with Complex Magnetic Fields
- The Multipolar Magnetic Field of Millisecond Pulsar PSR J0030+0451
- MHD Simulations of Bondi Accretion to a Star in the "Propeller" Regime
- Simulations of the magnetospheres of accreting millisecond pulsars
- Magnetic fields of neutron stars in X-ray binaries
- A Magnetar Strength Surface Magnetic Field for the Slowly Spinning Down SGR 0418+5729
- Accretion onto Stars with Octupole Magnetic Fields: Matter Flow, Hot Spots and Phase Shifts
- On the Rotational Dynamics of Magnetically Threaded Disks around Neutron Stars
- Recycled pulsars with multipolar magnetospheres from accretion-induced magnetic burial
- Super-Eddington Emission from Accreting, Highly Magnetised Neutron Stars with a Multipolar Magnetic Field
- The accretion regimes of a highly magnetised NS: the unique case of NuSTAR J095551+6940.8
- On the Magnetic Fields, Beaming Fractions, and Fastness Parameters of Pulsating Ultra-Luminous X-Ray Sources
- On the Origin of X-ray Emission From Millisecond Pulsars in 47 Tuc
- Evidence for a multipolar magnetic field in SGR J1745-2900 from X-ray light-curve analysis
- GRMHD simulations of accreting neutron stars I: nonrotating dipoles
- Angular Dependence of Coherent Radio Emission from Magnetars with Multipolar Magnetic Fields
- On kHz oscillations and characteristic frequencies of accreting magnetospheres