Evolution implications of neutron star magnetic fields: inferred from pulsars and cyclotron lines of HMXBs
arXiv:1911.05948 · doi:10.1007/s10509-019-3690-1
Abstract
The evolution of neutron star (NS) magnetic field (B-field) has long been an important topic, which is still not yet settled down. Here, we analyze the NS B-fields inferred by the cyclotron resonance scattering features (CRSFs) for the high mass X-ray binaries (HMXBs) and by the magnetic dipole model for the spin-down pulsars. We find that the B-fields of both the 32 NSHMXBs and 28 young pulsars with the supernova remnants follow the log-normal distributions, with the average values of 3.4 * 10^12 G and 4.1 * 10^12 G respectively, which are further verified to come from the same continuous distribution by the statistical tests. These results declaim that the two methods of measuring NS B-fields are reliable for the above two groups of samples. In addition, since the NS-HMXBs have experienced the spin-down phase as the normal pulsars without accretion and then the spin-up phase by accretion, their ages should be about million years (Myrs). Our statistical facts imply that the B-fields of NS-HMXBs have little decayed in their non-accretion spin-down phases of ~ Myrs, as well as in their accretion phases of ~ 0.1Myrs.
8 pages, 2 figures, 4 tables, accepted by Astrophysics and Space Science
References in corpus (16)
- The ATNF Pulsar Catalogue
- A catalogue of low-mass X-ray binaries in the Galaxy, LMC, and SMC (Fourth edition)
- A model for cyclotron resonance scattering features
- Determination of the mass of the neutron star in SMC X-1, LMC X-4 and Cen X-3 with VLT/UVES
- VLT/UVES spectroscopy of Wray 977, the hypergiant companion to the X-ray pulsar GX301-2
- NuSTAR Detection Of A Cyclotron Line In The Supergiant Fast X-ray Transient IGR J17544-2619
- Millisecond Pulsars, their Evolution and Applications
- Detection of Cyclotron Resonance Scattering Feature in High Mass X-ray Binary Pulsar SMC X-2
- The first cyclotron harmonic of 4U 1538-52
- Screening of the Magnetic Field of Disk Accreting Stars
- Study of the cyclotron feature in MXB 0656-072
- NuSTAR Discovery of a Cyclotron Line in the Be/X-ray Binary RX J0520.5-6932 During Outburst
- NuSTAR observations of the supergiant X-ray pulsar IGR J18027-2016: accretion from the stellar wind and possible cyclotron absorption line
- Cyclotron lines: from magnetic field strength estimators to geometry tracers in neutron stars
- Formation of Double Neutron Stars, Millisecond Pulsars and Double Black Holes
- Timing and Spectral Study of IGR J19294+1816 with RXTE: Discovery of Cyclotron Feature