نتایج جستجو برای: ‎deformed neutron stars‎ ‎

تعداد نتایج: 108730  

‎In this work, we review the formalism which would allow us to model magnetically deformed neutron stars. We study the effect of different magnetic field configurations on the equation of state (EoS) and ‎the ‎structure of such stars. ‎For this aim‎, the EoS of magnetars is acquired by using the lowest order constraint variational (LOCV) method ‎‎and ‎employing‎ the AV18 potential‎.‎...

2008
B. Haskell L. Samuelsson K. Glampedakis N. Andersson

Rotating deformed neutron stars are important potential sources for groundbased gravitational-wave interferometers such as LIGO, GE0600 and VIRGO. One mechanism that may lead to significant non-asymmetries is the internal magnetic field. It is well known that a magnetic star will not be spherical and, if the magnetic axis is not aligned with the spin axis, the deformation will lead to the emiss...

Journal: :Monthly Notices of the Royal Astronomical Society 2008

Journal: :Monthly Notices of the Royal Astronomical Society 2009

Journal: :Astronomische Nachrichten 2021

A deformed neutron star (NS) will precess if the instantaneous spin axis and angular momentum are not aligned. Such a precession can produce continuous gravitational waves (GWs) modulate electromagnetic pulse signals of pulsars. In this contribution we extend our previous work in more convenient parameterization. We treat NSs as rigid triaxial bodies give analytical solutions for velocities Eul...

Journal: :International Journal of Modern Physics: Conference Series 2017

1997
J. O. Goussard P. Haensel

Rapid uniform rotation of newborn neutron stars (protoneutron stars) is studied for a range of internal temperatures and entropies per baryon predicted by the existing numerical simulations. Calculations are performed using general relativistic equations of hydrostatic equilibrium of rotating, axially symmetric stars. Stability of rotating configurations with respect to mass shedding and the ax...

Journal: :iranian journal of astronomy and astrophysic 0
mohsen bigdeli department of physics, university of zanjan, p.o. box 45195-313, zanjan, iran nariman roohi department of physics, university of zanjan, p.o. box 45195-313, zanjan, iran mina zamani department of physics, university of zanjan, p.o. box 45195-313, zanjan, iran

in the present work, we have obtained the equation of state for neutron star matter considering the in uence of the ferromagnetic and antiferromagnetic spin state. we have also investigated the structure of neutron stars. according to our results, the spin asymmetry sti ens the equation of state and leads to high mass for the neutron star.

Mina Zamani, Mohsen Bigdeli, Nariman Roohi

In the present work, we have obtained the equation of state for neutron star matter considering the in uence of the ferromagnetic and antiferromagnetic spin state. We have also investigated the structure of neutron stars. According to our results, the spin asymmetry stiens the equation of state and leads to high mass for the neutron star.

2001
Christian Y. Cardall Anthony Mezzacappa

We propose an approximation to full relativity that captures the main gravitational effects of dynamical importance in supernovae. The conceptual link between this formalism and the Newtonian limit is such that it could likely be implemented relatively easily in existing multidimensional Newtonian gravitational hydrodynamics codes employing a Poisson solver. As a test of the formalism’s utility...

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