Polarization of neutron star surface emission: a systematic analysis
نویسندگان
چکیده
منابع مشابه
Emission processes in quiescent neutron star transients
We review the observational properties of transient systems made by a neutron star primary and a late dwarf companion (known also as Soft X–ray Transients) during their quiescent state. We focus on the several emission mechanisms proposed and try to compare them with observations. Finally, we review new tools to improve our comprehension of the physics of the emission processes. WHAT ARE NEUTRO...
متن کاملHotspot Emission from a Freely Precessing Neutron Star
Recent observations of 1E 161348-5055 the neutron-star candidate at the center of the supernova remnant RCW 103, show that a component of its emission varies sinusoidally with a period of approximately six hours. We argue that this period is what one would expect for a freely precessing neutron star with a spin period of about one second. We produce light curves for a freely precessing neutron ...
متن کاملBoundary layer on the surface of a neutron star
In an attempt to model the accretion on to a neutron star in low-mass X-ray binaries, we present 2D hydrodynamical models of the gas flow in close vicinity of the stellar surface. First, we consider a gas pressure-dominated case, assuming that the star is non-rotating. For the stellar mass we take Mstar = 1.4 × 10−2 M and for the gas temperature T = 5 × 106 K. Our results are qualitatively diff...
متن کاملMagnetospheric Birefringence Induces Polarization Signatures in Neutron-Star Spectra
We study the propagation of polarization light through the magnetosphere of neutron stars. At intermediate frequencies (the optical through the infrared), both the birefringence induced by the plasma and by quantumelectrodynamics influence the observation polarization of radiation from the surface of the neutron star. Because these two processes compete in this regime, we find that polarization...
متن کاملDeformations of Accreting Neutron Star Crusts and Gravitational Wave Emission
Motivated by the remarkably narrow range of measured spin frequencies of ∼ 20 accreting (and weakly magnetic) neutron stars in the Galaxy, Bildsten (1998a) conjectured that their spin-up had been halted by the emission of gravitational waves. If so, then the brightest persistent X-ray source on the sky, Scorpius X-1, should be detected by gravitational wave interferometers within ten years. Bil...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2015
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/stv2168