Spin evolution of long-period X-ray pulsars

Abstract

Spin evolution of X-ray pulsars in High Mass X-ray Binaries (HMXBs) is discussed under various assumptions about the geometry and physical parameters of the accretion flow. The torque applied to the neutron star from the accretion flow and equilibrium period of the pulsars are evaluated. We show that the observed spin evolution of the pulsars can be explained in terms of a scenario in which the neutron star accretes material from a magnetized stellar wind.

16 pages, Published in Astronomy Reports, Volume 58, Issue 6, pp.376-385 (2014)

References in corpus (9)

• Catalogue of high-mass X-ray binaries in the Galaxy ($4^{th}$ edition)
• VLT/UVES spectroscopy of Wray 977, the hypergiant companion to the X-ray pulsar GX301-2
• XMM-Newton observation of the persistent Be/neutron-star system X Persei at a high-luminosity level
• Signs of magnetic accretion in young Be/X-ray pulsar SXP 1062
• Signs of Magnetic Accretion in the X-ray Pulsar Binary GX 301-2
• Burst Fluence Distributions of Soft Gamma Repeaters 1806-20 and 1900+14 in the RXTE PCA era
• A new look at the origin of the 6.67\,hr period X-ray pulsar 1E~161348-5055
• Signs of magnetic accretion in X-ray pulsars
• On the spin-down mechanism of the X-ray pulsar 4U 2206+54

Cited by in corpus (5)

• NuSTAR discovery of a cyclotron line in the accreting X-ray pulsar IGR J16393-4643
• On the magnetic fields of Be/X-ray pulsars in the Small Magellanic Cloud
• Catalog of the Galactic population of X-ray pulsars in High-mass X-ray binary systems
• A scenario of the formation of isolated X-ray pulsars with anomalously long period
• On the origin of super-global spin-up trends of X-ray pulsars in HMXB systems