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Related papers: Magnetars

200 papers

Long-period transients are an elusive class of compact objects uncovered by radio surveys. While magnetars are a leading candidate for those sources that appear isolated, several observational properties challenge the established…

High Energy Astrophysical Phenomena · Physics 2026-03-13 Arthur G. Suvorov , Clara Dehman , José A. Pons

Magnetars are highly-magnetised rotating neutron stars that are predominantly observed as high-energy sources. Six of this class of neutron star are known to also emit radio emission, and magnetars are, thus, a favoured model for the origin…

High Energy Astrophysical Phenomena · Physics 2023-11-27 Michael Kramer , Kuo Liu , Gregory Desvignes , Ramesh Karuppusamy , Ben W. Stappers

Rotation-powered pulsars and magnetars are two different observational manifestations of neutron stars: rotation powered pulsars are rapidly spinning objects that are mostly observed as pulsating radio sources, while magnetars, neutron…

High Energy Astrophysical Phenomena · Physics 2017-11-08 R. F. Archibald , M. Burgay , M. Lyutikov , V. M. Kaspi , P. Esposito , G. Israel , M. Kerr , A. Possenti , N. Rea , J. Sarkissian , P. Scholz , S. P. Tendulkar

P-stars are compact stars made of up and down quarks in beta-equilibrium with electrons in a chromomagnetic condensate. P-stars are able to account for compact stars like RXJ 1856.5-3754 and RXJ 0720.4-3125, stars with radius comparable…

Astrophysics · Physics 2007-05-23 Paolo Cea

Neutron stars can have, in some phases of their life, extremely strong magnetic fields, up to 10^15-10^16 G. These objects, named magnetars, could be powerful sources of gravitational waves, since their magnetic field could determine large…

Solar and Stellar Astrophysics · Physics 2015-05-20 L. Gualtieri , R. Ciolfi , V. Ferrari

Energetic bursts from strongly magnetized neutron stars, known as magnetars, are typically detected in clusters. Once an active episode begins, anywhere from a few to thousands of hard X-ray bursts can occur over durations ranging from days…

High Energy Astrophysical Phenomena · Physics 2025-05-15 Ozge Keskin , Samuel K. Lander , Ersin Gogus

The high-energy sources known as anomalous X-ray pulsars (AXPs) and soft gamma-ray repeaters (SGRs) are well explained as magnetars: isolated neutron stars powered by their own magnetic energy. After explaining why it is generally believed…

High Energy Astrophysical Phenomena · Physics 2015-06-15 Sandro Mereghetti

P-stars are compact stars made of up and down quarks in $\beta$-equilibrium with electrons in a chromomagnetic condensate. We discuss p-stars endowed with super strong dipolar magnetic field which, following consolidated tradition in…

Astrophysics · Physics 2009-11-11 Paolo Cea

Situation with highly magnetized neutron stars in binary systems is not yet certain. On the one hand, all best studied magnetars seem to be isolated objects. On the other, there are many claims based on model-dependent analysis of spin…

High Energy Astrophysical Phenomena · Physics 2023-03-15 S. B. Popov

Magnetars are a unique class of neutron stars characterized by their incredibly strong magnetic fields. Unlike normal pulsars whose X-ray emission was driven by rotational energy loss, magnetars exhibit distinct X-ray emissions thought to…

High Energy Astrophysical Phenomena · Physics 2023-08-21 Che-Yen Chu , Hsiang-Kuang Chang

Extremely strong magnetic fields of the order of $10^{15}\,{\rm G}$ are required to explain the properties of magnetars, the most magnetic neutron stars. Such a strong magnetic field is expected to play an important role for the dynamics of…

High Energy Astrophysical Phenomena · Physics 2017-10-25 Jerome Guilet , Ewald Mueller , Hans-Thomas Janka , Tomasz Rembiasz , Martin Obergaulinger , Pablo Cerda-Duran , Miguel-Angel Aloy

The origin of the strong magnetic fields measured in magnetars is one of the main uncertainties in the neutron star field. On the other hand, the recent discovery of a large number of such strongly magnetized neutron stars, is calling for…

High Energy Astrophysical Phenomena · Physics 2015-06-22 J. Martin , N. Rea , D. F. Torres , A. Papitto

Magnetars younger than one century are expected to be hyper active. Besides winds powered by rotation they generate frequent magnetic flares, which launch powerful blast waves into the wind. These internal shocks act as masers producing…

High Energy Astrophysical Phenomena · Physics 2020-07-01 Andrei M. Beloborodov

Magnetars are extreme neutron stars powered by ultra-strong magnetic fields ($\sim10^{14}$ Gauss) and are compelling engines for some of the most powerful extragalactic transients such as Super Luminous Supernovae, Gamma-Ray Bursts, and…

High Energy Astrophysical Phenomena · Physics 2026-01-23 Celsa Pardo-Araujo , Nanda Rea , Michele Ronchi , Vanessa Graber

The defining trait of magnetars, the most strongly magnetized neutron stars (NSs), is their transient activity in the X/$\gamma$-bands. In particular, many of them undergo phases of enhanced emission, the so-called outbursts, during which…

High Energy Astrophysical Phenomena · Physics 2022-09-14 Davide De Grandis , Roberto Turolla , Roberto Taverna , Elisa Lucchetta , Toby S. Wood , Silvia Zane

The X-ray afterglow that is observed following large flares on magnetars can be accurately fit by simple and quantitative theoretical models: The long term afterglow, lasting of order weeks, can be understood as thermal radiation of a…

Astrophysics · Physics 2007-05-23 D. Eichler , Y. Lyubarsky , C. Thompson , P. Woods

Magnetars are highly magnetised, isolated neutron stars with uncertain formation channels. They comprise a potentially significant fraction of the young neutron star population in the Milky Way, and are implicated in the explosion…

There has recently been growing evidence for the existence of neutron stars possessing magnetic fields with strengths that exceed the quantum critical field strength of $4.4 \times 10^{13}$ G, at which the cyclotron energy equals the…

Astrophysics · Physics 2009-11-11 Alice K. Harding , Dong Lai

The evolution and genesis of Anomalous X-ray Pulsars and Soft Gamma ray Repeaters are investigated. The new arguments in favor of magnetar model are found. It is shown, that these objects are formed from more massive stars and responsible…

Astrophysics · Physics 2008-10-30 F. K. Kasumov , A. O. Allakhverdiev

We consider the possible existence of a common channel of evolution of binary systems, which results in a gamma-ray burst during the formation of a black hole or the birth of a magnetar during the formation of a neutron star. We assume that…

High Energy Astrophysical Phenomena · Physics 2010-11-02 A. I. Bogomazov , S. B. Popov