Results 21 to 30 of about 3,165 (200)

Magnetospheric physics of magnetars [PDF]

open access: yes, 2023
Several aspects of the magnetospheric physics of magnetars are summarized, including: GeV and hard X-ray emissions of magnetars, timing behaviors during magnetar outburst (soft X-ray observations), optical/IR observations of magnetars, radio emission of ...
Tong, H.
core   +1 more source

MAGNETAR HEATING [PDF]

open access: yesThe Astrophysical Journal, 2016
ABSTRACT We examine four candidate mechanisms that could explain the high surface temperatures of magnetars. (1) Heat flux from the liquid core heated by ambipolar diffusion. It could sustain the observed surface luminosity erg s−1 if core heating offsets neutrino cooling ...
Beloborodov, Andrei M., Li, Xinyu
openaire   +2 more sources

Evolution of Neutron Star Magnetic Fields

open access: yesUniverse, 2021
Neutron stars are natural physical laboratories allowing us to study a plethora of phenomena in extreme conditions. In particular, these compact objects can have very strong magnetic fields with non-trivial origin and evolution.
Andrei P. Igoshev   +2 more
doaj   +1 more source

An observational argument against accretion in magnetars [PDF]

open access: yes, 2022
The phenomenology of anomalous X-ray pulsars is usually interpreted within the paradigm of very highly magnetized neutron stars, also known as magnetars.
Doroshenko V   +3 more
core   +2 more sources

Effect of Protoneutron Star Magnetized Envelops in Neutrino Energy Spectra

open access: yesParticles, 2022
The neutrino dynamics in hot and dense magnetized matter, which corresponds with protoneutron star envelopes in the core collapse supernova explosions, is considered.
Vladimir N. Kondratyev   +2 more
doaj   +1 more source

An anti-glitch in a magnetar [PDF]

open access: yesNature, 2013
Magnetars are neutron stars showing dramatic X-ray and soft $γ$-ray outbursting behaviour that is thought to be powered by intense internal magnetic fields. Like conventional young neutron stars in the form of radio pulsars, magnetars exhibit "glitches" during which angular momentum is believed to be transferred between the solid outer crust and the ...
Archibald, R. F.   +8 more
openaire   +5 more sources

Anisotropic Behavior of S‐Wave and P‐Wave States of Heavy Quarkonia at Finite Magnetic Field

open access: yesAdvances in High Energy Physics, Volume 2023, Issue 1, 2023., 2023
We studied the effect of momentum space anisotropy on heavy quarkonium states using an extended magnetized effective fugacity quasiparticle model (EQPM). Both the real and imaginary part of the potential has been modified through the dielectric function by including the anisotropic parameter ξ.
Manohar Lal   +4 more
wiley   +1 more source

Density Perturbation and Cosmological Evolution in the Presence of Magnetic Field in f(R) Gravity Models

open access: yesAdvances in High Energy Physics, Volume 2022, Issue 1, 2022., 2022
In this paper, we have investigated the density perturbations and cosmological evolution in the FLRW universe in the presence of a cosmic magnetic field, which may be assumed to mimic primordial magnetic fields. Such magnetic fields have sufficient strength to influence galaxy formation and cluster dynamics, thereby leaving an imprint on the CMB ...
Samarjit Chakraborty   +2 more
wiley   +1 more source

Impacts of Ionospheric Ions on Magnetic Reconnection and Earth's Magnetosphere Dynamics

open access: yesReviews of Geophysics, Volume 59, Issue 3, September 2021., 2021
Abstract Ionospheric ions (mainly H+, He+, and O+) escape from the ionosphere and populate the Earth's magnetosphere. Their thermal energies are usually low when they first escape the ionosphere, typically a few electron volt to tens of electron volt, but they are energized in their journey through the magnetosphere.
S. Toledo‐Redondo   +15 more
wiley   +1 more source

Temporary Singularities and Axions: An Analytic Solution that Challenges Charge Conservation

open access: yesAnnalen der Physik, Volume 533, Issue 6, June 2021., 2021
Is charge conservation sacrosact? If so, why? Even when local charge conservation remains in force, the presence of a temporary singularity can give rise to surprising results. This work shows how global charge conservation can be broken after the combined appearance of both new charge and an axion‐like field from the singularity.
Jonathan Gratus   +2 more
wiley   +1 more source

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