scholarly journals Nonlinear-in-spin effects in effective-one-body waveform models of spin-aligned, inspiralling, neutron star binaries

2019 ◽  
Vol 99 (4) ◽  
Author(s):  
Alessandro Nagar ◽  
Francesco Messina ◽  
Piero Rettegno ◽  
Donato Bini ◽  
Thibault Damour ◽  
...  
Keyword(s):  
Neutron Star ◽  
Spin Effects

SOME CONSTRAINTS ON TORSION DETECTION PHYSICS

1993 ◽  
Vol 08 (28) ◽  
pp. 5095-5100 ◽  
Author(s):  
C.M. ZHANG
Keyword(s):  
Neutron Star ◽  
Spin Rotation ◽  
Spin Effects ◽  
Dirac Particles ◽  
Rotating Body ◽  
Magnetic Spin

Two kinds of sources of torsion, aligned spin and macroscopic rotation, are demonstrated by analyzing the Lagrangian. In the case of Dirac particles as a direct sensor for torsion, the torsion spin effects are strongly influenced by the backgrounds, which are magnetic spin, rotation spin and gravity spin. Increasing the source of the torsion is equivalent to increasing the background itself. The first proposed criterion for torsion detection is that any astrophysics experiments have no hope of showing the evidence for torsion directly. The promised evidence for torsion must be cumulative and indirect on the neutron star. The macroscopic rotating body, an indirect sensor for torsion, has not been able to present the trace of the torsion in the experiments carried out so far.

scholarly journals Matter imprints in waveform models for neutron star binaries: Tidal and self-spin effects

2019 ◽  
Vol 99 (2) ◽  
Author(s):  
Tim Dietrich ◽  
Sebastian Khan ◽  
Reetika Dudi ◽  
Shasvath J. Kapadia ◽  
Prayush Kumar ◽  
...  
Keyword(s):  
Neutron Star ◽  
Spin Effects

ROTATION INTRINSIC SPIN EFFECTS AND ITS ASTROPHYSICAL APPLICATION

1998 ◽  
Vol 13 (03) ◽  
pp. 173-180
Author(s):  
C. M. ZHANG
Keyword(s):  
Magnetic Field ◽  
Neutron Star ◽  
Layer Structure ◽  
Observational Evidence ◽  
Rotational Axis ◽  
Radio Pulsars ◽  
Astrophysical Application ◽  
Companion Star ◽  
Spin Effects ◽  
Magnetic Spin

On the basis of rotation-spin, torsion-spin and magnetic-spin effects, by which the spin precession arises the polarized magnetic field of neutron star to incline to the rotational axis. In the case of accretion layer structure of the recycled pulsar and the companion star magnetic influence considered, the magnetic inclinations of the recycled pulsars are different from that of the normal radio pulsars. The theoretical conclusions and consistent observational evidence is discussed.

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