Results 111 to 120 of about 10,429 (199)

Toward Understanding the Origin of Swift Gamma-Ray Bursts Driven by Magnetars

open access: yesThe Astrophysical Journal
In this paper, we analyze a sample of Swift gamma-ray bursts (GRBs) with extended emissions in γ -rays and/or X-ray plateaus that may be driven by magnetars.
C. T. Hao   +9 more
doaj   +1 more source

Modeling Isolated Magnetar Spin-down Evolution and Implications for Long-period Radio Transients

open access: yesThe Astrophysical Journal
Long-period radio transients (LPTs) are a new class of radio sources characterized by long spin periods ( P _spin  > 10 ^3 s) and highly variable radio emission. While known magnetars are relatively young ( τ   10 ^3 s.
Jon Kwong, Kaya Mori
doaj   +1 more source

Discovery of Evolution of the Temporal Features of X-Ray Bursts from SGR J1935+2154

open access: yesThe Astrophysical Journal
SGR J1935+2154 has undergone eight active episodes since its discovery in 2014. In this study, our focus is on the evolution of the temporal characteristics including burst duration, minimum variation timescale (MVT), and waiting time across these active
Shuo Xiao   +9 more
doaj   +1 more source

Polarized X-Rays Detected from the Anomalous X-Ray Pulsar 1E 2259+586

open access: yesThe Astrophysical Journal
Anomalous X-ray pulsars (AXPs) and soft gamma-ray repeaters (SGRs) are believed to be associated with magnetars, which have extremely strong magnetic fields.
Han-Long Peng   +7 more
doaj   +1 more source

Hyperactive Magnetar Eruptions: Giant Flares, Baryon Ejections, and Fast Radio Bursts

open access: yesThe Astrophysical Journal Letters
Young neutron stars born with magnetic fields B  ≳ 10 ^16 G become hyperactive as the field inside the star evolves through ambipolar diffusion on a timescale ∼10 ^9 s.
Ashley Bransgrove   +2 more
doaj   +1 more source

Gravitational waves from magnetars

open access: yesInternational Journal of Modern Physics D
We study the emission of gravitational waves produced by the magnetosphere of magnetars. We argue that several features in the spectrum could facilitate the identification of that source. In addition, in cases of extremely large magnetic fields we demonstrate that this emission can contribute to the deviation of the braking index from 3, which is the ...
openaire   +2 more sources

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