Results 61 to 70 of about 17,260 (230)

Axion constraints from quiescent soft gamma-ray emission from magnetars [PDF]

, 2020
Axion-like-particles (ALPs) emitted from the core of a magnetar can convert to photons in its magnetosphere. The resulting photon flux is sensitive to the product of (i) the ALP-nucleon coupling ${G}_{an}$ which controls the production cross section in ...
S. Lloyd, P. Chadwick, Anthony M. Brown, Huai-Ke Guo, K. Sinha   +4 more
semanticscholar   +1 more source

Ambipolar Heating of Magnetars

The 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, Madeline J. Kelly, Ken’ichi Nomoto, Kanji Mori, Marcus Teter, Andrew C. Liebmann   +5 more
doaj   +1 more source

Coherent Emission from Magnetars

, 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, Gedalin M., Michael Gedalin, Ribak E., Thompson C., Yury Lyubarsky   +5 more
core   +2 more sources

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

, 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., Papitto, A., Rea, N., Torres, D. F.   +3 more
core   +2 more sources

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

Қарағанды 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, М. Абишев, С. Тоқтарбай, Т. Ерназаров, М. Хасанов, Д. Утепова, М. Алимкулова, А. Абдуали   +7 more
doaj   +1 more source

Heating and cooling of magnetars with accreted envelopes

, 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, A. Y. Potekhin, Aguilera, Aguilera, Aguilera, Akmal, Alpar, Beloborodov, Bildsten, Chang, Chatterjee, Chevalier, Chevalier, Chugunov, Colpi, D. G. Yakovlev, Durant, Ertan, G. Chabrier, Geppert, Geppert, Ginzburg, Gnedin, Gudmundsson, Gusakov, Haensel, Ho, Kaminker, Kaminker, Kaminker, Kulkarni, Lattimer, Lyutikov, Mereghetti, Mereghetti, Morii, Morley, Muno, Nelson, Pavlov, Pons, Pons, Potekhin, Potekhin, Potekhin, Potekhin, Pérez-Azorín, Rea, Rea, Rho, Romanova, Shibanov, Slane, Tam, Thompson, Thompson, Tiengo, van Kerkwijk, Van Riper, Vancura, Vasisht, Ventura, Walter, Wang, Woods, Woods, Woods, Yakovlev, Yakovlev, Yakovlev   +69 more
core   +1 more source

Spinning-Down of Moving Magnetars in the Propeller Regime [PDF]

, 2006
We use axisymmetric magnetohydrodynamic simulations to investigate the spinning-down of magnetars rotating in the propeller regime and moving supersonically through the interstellar medium. The simulations indicate that magnetars spin-down rapidly due to
Lovelace, R. V., Romanova, M. M., Toropina, O. D.   +2 more
core   +2 more sources

Pulsed γ-ray emission from magnetar 1E 2259+586 [PDF]

Journal of Astronomy and Space Sciences, 2013
Anomalous X-ray pulsars (AXPs) are thought to be magnetars which are young isolated neutron stars with extremely strong magnetic fields of >1014 Gauss.
Jason Hung Kit Wu, Chung Yue Hui, Regina Hsiu Hui Huang, Albert Kwok Hing Kong, Kwong Sang Cheng, Jumpei Takata, Pak Hin Thomas Tam, Eric Man Ho Wu, Joe Liu   +8 more
doaj   +1 more source

Magnetars: the physics behind observations. A review [PDF]

Reports on progress in physics. Physical Society, 2015
Magnetars are the strongest magnets in the present universe and the combination of extreme magnetic field, gravity and density makes them unique laboratories to probe current physical theories (from quantum electrodynamics to general relativity) in the ...
R. Turolla, S. Zane, A. Watts
semanticscholar   +1 more source

On the initial spin periods of magnetars born in weak supernova explosions and their gravitational wave radiation

European Physical Journal C: Particles and Fields
The initial spin periods of newborn magnetars are strongly associated with the origin of their strong magnetic fields, both of which can affect the electromagnetic radiation and gravitational waves (GWs) emitted at their birth. Combining the upper limit $
Yu-Long Yan, Quan Cheng, Xiao-Ping Zheng, Xia-Xia Ouyang   +3 more
doaj   +1 more source