Rapidly rotating neutron stars inR-squared gravity
نویسندگان
چکیده
منابع مشابه
Light Curves for Rapidly-rotating Neutron Stars
We present raytracing computations for light emitted from the surface of a rapidly-rotating neutron star in order to construct light curves for X-ray pulsars and bursters. These calculations are for realistic models of rapidly-rotating neutron stars which take into account both the correct exterior metric and the oblate shape of the star. We find that the most important effect arising from rota...
متن کاملPulse Shapes from Rapidly-rotating Neutron Stars: Equatorial Photon Orbits
We demonstrate that fitted values of stellar radius obtained by fitting theoretical light curves to observations of millisecond period X-ray pulsars can significantly depend on the method used to calculate the light curves. The worst-case errors in the fitted radius are evaluated by restricting ourselves to the case of light emitted and received in the equatorial plane of a rapidly-rotating neu...
متن کاملr-Mode Runaway and Rapidly Rotating Neutron Stars.
We present a simple spin-evolution model that predicts that rapidly rotating accreting neutron stars will be confined mainly to a narrow range of spin frequencies: P=1.5-5 ms. This is in agreement with current observations of neutron stars in both the low-mass X-ray binaries and the millisecond radio pulsars. The main ingredients in the model are (1) the instability of r-modes above a critical ...
متن کاملGravitational waves from hot young rapidly rotating neutron stars
Benjamin J. Owen, Lee Lindblom, Curt Cutler, Bernard F. Schutz, Alberto Vecchio, and Nils Andersson Theoretical Astrophysics 130-33, California Institute of Technology, Pasadena, California 91125 Max Planck Institute for Gravitational Physics, Schlaatzweg 1, D-14473 Potsdam, Germany Institute for Astronomy and Astrophysics, University of Tübingen, D-72076 Tübingen, Germany ~Received 20 April 19...
متن کاملGravitational Radiation from Rapidly Rotating Nascent Neutron Stars
We study the secular evolution and gravitational wave signature of a newly-formed, rapidly rotating neutron star. The neutron star may arise from core collapse in a massive star or from the accretion-induced collapse of a white dwarf. After a brief dynamical phase, the nascent neutron star settles into an axisymmetric, secularly unstable equilibrium state. Gravitational radiation drives the sta...
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: Physical Review D
سال: 2015
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.91.084018