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We examine the generation of a magnetic field in a solar-like star and its effects on the internal distribution of the angular velocity. We suggest that the evolution of a rotating star with magnetic fields leads to an equilibrium value of…

Astrophysics · Physics 2009-11-11 P. Eggenberger , A. Maeder , G. Meynet

The origin and fate of magnetars (young, extremely magnetized neutron stars, NSs) remain unsolved. Probing their evolution is therefore crucial for investigating possible links to other species of isolated NSs, such as the X-ray dim NSs…

High Energy Astrophysical Phenomena · Physics 2021-09-29 Jedrzej A. Jawor , Thomas M. Tauris

Compact binaries are the most promising source for the advanced gravitational wave detectors, which will start operating this year. The influence of spin on the binary evolution is an important consequence of general relativity and can be…

General Relativity and Quantum Cosmology · Physics 2016-01-28 Jan Steinhoff

The long-term rotational evolution of the old, isolated pulsar, PSR B0950+08 is intriguing in that its spin-down rate displays sinusoidal-like oscillations due to alternating variations, both in magnitude and sign, of the second time…

High Energy Astrophysical Phenomena · Physics 2022-12-15 Erbil Gügercinoğlu , Elif Köksal , Tolga Güver

The well-observed Crab pulsar helps one to uncover the underlying knowledge about pulsar evolution. The routine evolution model simultaneously describes the spin-down caused by the magnetic dipole radiation (MDR) and gravitational wave…

High Energy Astrophysical Phenomena · Physics 2026-05-13 Cong-Xing Liu , Jian-Min Dong

This article starts by providing an introductory overview of the theoretical mechanics of rotating neutron stars as developped to account for the frequency variations, and particularly the discontinuous glitches, observed in pulsars. The…

Astrophysics · Physics 2007-05-23 Brandon Carter

We study the evolution of angular momenta of ($M_*=10^{10}-10^{12}\msun$) galaxies utilizing large-scale ultra-high resolution cosmological hydrodynamic simulations and find that spin of the stellar component changes direction frequently,…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-19 Renyue Cen

During the post-main sequence evolution massive stars pass through several short-lived phases, in which they experience enhanced mass loss in the form of clumped winds and mass ejection events of unclear origin. The discovery that stars…

We investigate the evolution of transverse spin in tightly focused circularly polarized beams of light, where spin-orbit coupling causes a local rotation of the polarization ellipses upon propagation through the focal volume. The effect can…

Optics · Physics 2019-12-11 Jörg S. Eismann , Peter Banzer , Martin Neugebauer

It is shown that the mass loss due to rotation-driven hydrodynamical instability during the catastrophic collapse of the star is small. Neutron star is formed with a large rotational kinetic energy and the spin-down takes place in the…

Astrophysics · Physics 2007-05-23 Zakir F. Seidov

It is shown that the slow glitches in the spin rate of the pulsar B1822-09 can be explained by the reconstruction of the neutron star shape, which is not matched with the star rotation axis. Owing to the evolution of the inclination angle,…

Astrophysics · Physics 2007-05-23 Y. N. Istomin , T. V. Shabanova

The spin-rotation of a planet arises from the accretion of angular momentum during its formation, but the details of this process are still unclear. In the solar system, the equatorial rotation velocities and spin angular momentum of the…

Earth and Planetary Astrophysics · Physics 2014-05-01 Ignas Snellen , Bernhard Brandl , Remco de Kok , Matteo Brogi , Jayne Birkby , Henriette Schwarz

Pulsars are highly magnetized and rapidly rotating neutron stars. The magnetic field can reach the critical magnetic field from which quantum effects of the vacuum becomes relevant, giving rise to magnetooptic properties of vacuum…

High Energy Astrophysical Phenomena · Physics 2013-10-09 Brahim Lamine , Clément Berthière , Arnaud Dupays

The self-consistent approach to the magnetic field evolution in neutron star cores, developed recently, is generalised to the case of superfluid and superconducting neutron stars. Applying this approach to the cold matter of neutron star…

High Energy Astrophysical Phenomena · Physics 2020-10-21 Mikhail E. Gusakov , Elena M. Kantor , Dmitry D. Ofengeim

Magnetars, highly magnetized neutron stars, host superconducting and superfluid phases. We develop a minimal model that captures the interplay between neutron superfluidity, proton superconductivity, and electromagnetic fields using the…

High Energy Astrophysical Phenomena · Physics 2025-03-18 Sanjay Shukla , Rahul Pandit

The evolution of stripe patterns in type-I superconductors subject to a rotating in-plane magnetic field is investigated magneto-optically. The experimental results reveal a very rich and interesting behavior of the patterns. For small…

Superconductivity · Physics 2009-11-11 M. Menghini , R. J. Wijngaarden

Spinning neutron stars, when observed as pulsars, are seen to undergo occasional spin-up events known as glitches. Despite several decades of study, the physical mechanisms responsible for glitches are still not well understood, but…

High Energy Astrophysical Phenomena · Physics 2024-01-09 Brynmor Haskell , David Ian Jones

We explore the dynamical evolution of a planet embedded in a disk surrounding a star part of a binary system where the orbital plane of the binary is significantly tilted respect to the initial disk plane. Our aim is to test whether the…

Earth and Planetary Astrophysics · Physics 2015-11-11 Giovanni Picogna , Francesco Marzari

A solitary millisecond pulsar, if near the mass limit, and undergoing a phase transition, either first or second order, provided the transition is to a substantially more compressible phase, will emit a blatantly obvious…

Astrophysics · Physics 2009-10-30 Norman K. Glendenning

We develop a model for subpulse separation period, $P_2$, taking into account both the apparent motion of the visible point as a function of pulsar phase, $\psi$, and the possibility of abrupt jumps between different rotation states in…

High Energy Astrophysical Phenomena · Physics 2016-04-06 R. Yuen , D. B. Melrose , M. A. Samsuddin , Z. Y. Tu , X. H. Han