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Long-lived massive magnetars are expected to be remnants of some binary neutron star (BNS) mergers. In this paper, we argue that the magnetic powered flaring activities of these merged magnetars would occur dominantly in their early…

高能天体物理现象 · 物理学 2023-08-14 Shu-Xu Yi , Zhen Zhang , Xilu Wang

In addition to the emission of gravitational waves (GWs) the coalescence and merger of two neutron stars will produce a variety of electromagnetic (EM) signals. In this work we combine a large set of numerical relativity simulations…

广义相对论与量子宇宙学 · 物理学 2017-05-03 Tim Dietrich , Maximiliano Ujevic

The twisted magnetospheres of magnetars must sustain a persistent flow of electron-positron plasma. The flow dynamics is controlled by the radiation field around the hot neutron star. The problem of plasma motion in the self-consistent…

高能天体物理现象 · 物理学 2015-06-11 Andrei M. Beloborodov

Neutron stars in astrophysical binary systems represent exciting sources for multi-messenger astrophysics. A potential source of electromagnetic transients from compact binary systems is the neutron star ocean, the external fluid layer…

We attribute the rapid spindown of magnetar 1E 2259+586 observed by Archibald et al. (2013), termed the "anti-glitch", to partial opening of the magnetosphere during the X-ray burst, followed by changes of the structure of the closed field…

高能天体物理现象 · 物理学 2013-06-11 Maxim Lyutikov

Using high-resolution AthenaK simulations of a twisted toroidal flux tube, we study the flux emergence of magnetic structures in the shear layer of a hot massive neutron star typical of a binary neutron star remnant. High-resolution…

高能天体物理现象 · 物理学 2026-02-26 Jacob Fields , David Radice , Peter Hammond

The merger of two neutron stars results often in a rapidly and differentially rotating hypermassive neutron star (HMNS). We show by numerical-relativity simulation that the magnetic-field profile around such HMNS is dynamically varied…

高能天体物理现象 · 物理学 2015-05-28 Masaru Shibata , Yudai Suwa , Kenta Kiuchi , Kunihito Ioka

Neutron star binaries offer a rich phenomenology in terms of gravitational waves and merger remnants. However, most general relativistic studies have been performed for nearly circular binaries, with the exception of head-on collisions. We…

广义相对论与量子宇宙学 · 物理学 2013-01-10 Roman Gold , Sebastiano Bernuzzi , Marcus Thierfelder , Bernd Bruegmann , Frans Pretorius

In this paper we present a new result, namely that the primal magnetic field of the collapsed core during a supernova explosion will, as a result of the conservation of magnetic flux, receive a massive boost to more than 90 times its…

天体物理学 · 物理学 2008-11-26 Qiu-he Peng , Hao Tong

Gravitational waves emitted from the coalescence of neutron star binaries open a new window to probe matter and fundamental physics in unexplored, extreme regimes. To extract information about the supranuclear matter inside neutron stars…

广义相对论与量子宇宙学 · 物理学 2021-03-10 Tim Dietrich , Tanja Hinderer , Anuradha Samajdar

In the magneto-centrifugal mechanism for jet formation, accreting neutron stars are assumed to produce relativistic jets only if their surface magnetic field is weak enough ($B \sim 10^8$ G). However, the most common manifestation of…

高能天体物理现象 · 物理学 2014-05-28 Federico García , Deborah N. Aguilera , Gustavo E. Romero

Current models of magnetars require extremely strong magnetic fields to explain their observed quiescent and bursting emission, implying that the field strength within the star's outer crust is orders of magnitude larger than the dipole…

太阳与恒星天体物理 · 物理学 2016-04-07 Konstantinos N. Gourgouliatos , Toby Wood , Rainer Hollerbach

If core collapse leads to the formation of a rapidly rotating bar-unstable proto-neutron star surrounded by fall-back material, then we might expect it to cool and fragment to form a double (proto)-neutron star binary into a super-close…

天体物理学 · 物理学 2009-11-07 Monica Colpi , Ira Wasserman

There has been sufficient observational indication suggesting a causal connection between the binary history of neutron stars and the evolution of their magnetic field. In particular, it is believed that the generation of the low-field…

天体物理学 · 物理学 2007-05-23 Sushan Konar

We report on general relativistic hydrodynamic studies which indicate several new physical processes which may contribute to powering gamma-ray bursts in neutron star binaries. Relativistically driven compression, heating, and collapse of…

天体物理学 · 物理学 2007-05-23 G. J. Mathews , J. R. Wilson , J. Salmonson

A supra-massive neutron star (NS) spinning extremely rapidly could survive from a merger of NS-NS binary. The spin-down of this remnant NS that is highly magnetized would power the isotropic merger ejecta to produce a bright mergernova…

高能天体物理现象 · 物理学 2016-03-23 Shao-Ze Li , Yun-Wei Yu

In this paper we investigate the evolution of binary neutron stars, namely, their magnetic field, spin, and orbital evolution. The core of a neutron star is considered to be a superfluid, superconductor type II. Flux expulsion of the…

太阳与恒星天体物理 · 物理学 2009-05-05 Shohreh Abdolrahimi

The first detection of a binary neutron star merger through gravitational waves and photons marked the dawn of multi-messenger astronomy with gravitational waves, and it greatly increased our insight in different fields of astrophysics and…

高能天体物理现象 · 物理学 2021-07-01 Stefano Ascenzi , Gor Oganesyan , Marica Branchesi , Riccardo Ciolfi

Magnetars are young and highly magnetized neutron stars which display a wide array of X-ray activity including short bursts, large outbursts, giant flares and quasi-periodic oscillations, often coupled with interesting timing behavior…

高能天体物理现象 · 物理学 2017-08-30 Victoria M. Kaspi , Andrei Beloborodov

We revisit the well-known Hoyle-Narlikar-Wheeler proposition that neutron star emerging in the magnetic-flux-conserving process of core-collapse supernova can convert the stored energy of Alfven vibrations into power of magneto-dipole…

高能天体物理现象 · 物理学 2011-04-15 S. I. Bastrukov , J. W. Yu , I. V. Molodtsova , R. X. Xu