Results 41 to 50 of about 12,989 (225)

Zeeman Splitting of Torsional Oscillation Frequencies of Magnetars

open access: yesUniverse, 2023
Magnetars form a special class of neutron stars possessing superstrong magnetic fields and demonstrating power flares triggered by these fields. Observations of such flares reveal the presence of quasi-periodic oscillations (QPOs) at certain frequencies;
Dmitry Yakovlev
doaj   +1 more source

Comparing supernova remnants around strongly magnetized and canonical pulsars [PDF]

open access: yes, 2014
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 more ...
Martin, J.   +3 more
core   +2 more sources

Ambipolar Heating of Magnetars

open access: yesThe Astrophysical Journal, 2023
Magnetars, neutron stars thought to be with ultrastrong magnetic fields of 10 ^14–15 G, are observed to be much hotter than ordinary pulsars with ∼10 ^12 G, and additional heating sources are required.
Sachiko Tsuruta   +5 more
doaj   +1 more source

AXPs & SGRs: Magnetar or Quarctar? [PDF]

open access: yes, 2012
The concept of a "magnetar" was proposed mainly because of two factors. First, the X-ray luminosity of Anomalous X-ray Pulsars (AXPs) and Soft Gamma-Ray Repeaters (SGRs) is larger than the rotational energy loss rate, and second, the magnetic field ...
Du, Yuanjie   +6 more
core   +1 more source

QED plasma and magnetars [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2016
5 pages, v2: references added, formatting ...
Freytsis, Marat, Gralla, Samuel E.
openaire   +2 more sources

An overview of light ray deflection calculation by magnetars in nonlinear electrodynamics

open access: yesҚарағанды университетінің хабаршысы. Физика сериясы
Due to the lack of experimental confirmation of the effects of nonlinear electrodynamics (NED) of vacuum on the electromagnetic wave, it remains the most pressing issue. One of the most optimal media for studying these effects, occurring in astrophysics,
Н. Бейсен   +7 more
doaj   +1 more source

Heating and cooling of magnetars with accreted envelopes

open access: yes, 2009
We study the thermal structure and evolution of magnetars as cooling neutron stars with a phenomenological heat source in an internal layer. We focus on the effect of magnetized (B > 10^{14} G) non-accreted and accreted outermost envelopes composed of ...
A. D. Kaminker   +69 more
core   +1 more source

Origin and evolution of magnetars [PDF]

open access: yes, 2008
We present a population synthesis study of the observed properties of the magnetars, which allows for X-ray selection effects, investigating the hypothesis that they are drawn from a population of progenitors that are more massive than those of the ...
Bałuci´nska-Church   +32 more
core   +1 more source

Coherent Emission from Magnetars

open access: yes, 2002
It is proposed that magnetospheric currents above the surfaces of magnetars radiate coherent emission in analogy to pulsars. Scaling the magnetospheric parameters suggests that the coherent emission from magnetars would emerge in the infra-red or ...
David Eichler   +5 more
core   +2 more sources

Magnetar Spin-Down

open access: yesThe Astrophysical Journal, 1999
10 pages, 1 figure, accepted for Astrophysical Journal Letters, typos ...
Harding, Alice K.   +2 more
openaire   +3 more sources

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