Results 41 to 50 of about 455 (137)

Magnetars in Binaries as the Engine of Actively Repeating Fast Radio Bursts

The Astrophysical Journal Letters
The association between FRB 20200428D and the Galactic magnetar SGR J1935+2154 makes magnetars the leading engine of cosmological fast radio bursts (FRBs).
Bing Zhang, Rui-Chong Hu
doaj   +1 more source

Deep Searches for Radio Pulsations and Bursts from Four Magnetar and a Magnetar-like Pulsar with FAST

The Astrophysical Journal
We report on radio observations of four magnetars SGR 0501+4516, Swift 1834.9–0846, 1E 1841–045, SGR 1900+14, and a magnetar-like pulsar PSR J1846–0258 with the Five-hundred-meter Aperture Spherical radio Telescope at 1250 MHz.
Juntao Bai, Na Wang, Shi Dai, Shuangqiang Wang, Jianping Yuan, Wenming Yan, Lunhua Shang, Xin Xu, Shijun Dang, Zhen Zhang   +9 more
doaj   +1 more source

The Magnetar SGR 1935+2154’s Quiet Local Environment: Clues for Its Progenitor

The Astrophysical Journal
Magnetars are highly magnetized neutron stars whose evolution and radiation are governed by the decay and/or reconfiguration of their magnetic fields.
Wenlang He, Ping Zhou, Bingqiu Chen
doaj   +1 more source

X-ray Data Analysis to Search for Magnetar Candidates in the Galactic Plane

Journal of Astronomy and Space Sciences, 2018
We report on our Galactic plane searches for magnetars in the archival Chandra X-ray Observatory (CXO) data. We summarize the properties of known magnetars and use them to establish a procedure for magnetar searches.
Woochan Park, Hongjun An
doaj   +1 more source

The Galactic Population of Magnetars: A Simulation-based Inference Study

The Astrophysical Journal
Population synthesis modeling of the observed dynamical and physical properties of a population is a highly effective method for constraining the underlying birth parameters and evolutionary tracks.
M. Sautron, A. E. McEwen, G. Younes, J. Pétri, P. Beniamini, D. Huppenkothen   +5 more
doaj   +1 more source

Formation Channels of Magnetars

The Astrophysical Journal
The formation channels of magnetars remain an open question. Although core-collapse supernovae of isolated massive stars are important, binary interactions—such as tidal interaction, common envelope evolution, and stellar mergers—may also play a ...
Rui-Chong Hu, Bing Zhang
doaj   +1 more source

Late-Time Radio Diagnostics of Magnetar Magnetic Burial and Reemergence in GRB Afterglows

Galaxies
Recent centimeter-to-millimeter monitoring of nearby gamma-ray bursts (GRBs) has revealed late-time (≳102–104 days) radio rebrightenings and spectral turnovers not explained by standard forward-shock scenarios with steady microphysics. We attribute these
Nissim Fraija, C. G. Bernal, A. Galván, B. Betancourt Kamenetskaia, M. G. Dainotti   +4 more
doaj   +1 more source

Gravitational-wave Radiation from the Magnetar-driven Supernovae

The Astrophysical Journal
Rapidly spinning magnetars are potential candidates for the energy source of supernovae (SNe) and gamma-ray bursts and the most promising sources for continuous gravitational waves (GWs) detected by ground-based GW detectors.
Lang Xie, Hong-Yu Gong, Long Li, Da-Ming Wei, J. L. Han   +4 more
doaj   +1 more source

The high energy X-ray probe (HEX-P): magnetars and other isolated neutron stars

Frontiers in Astronomy and Space Sciences
The hard X-ray emission from magnetars and other isolated neutron stars remains under-explored. An instrument with higher sensitivity to hard X-rays is critical to understanding the physics of neutron star magnetospheres and also the relationship between
J. A. J. Alford, G. A. Younes, Z. Wadiasingh, Z. Wadiasingh, Z. Wadiasingh, M. Abdelmaguid, H. An, M. Bachetti, M. G. Baring, A. Beloborodov, A. Y. Chen, T. Enoto, J. A. García, J. D. Gelfand, E. V. Gotthelf, A. K. Harding, C-P. Hu, A. D. Jaodand, V. Kaspi, C. Kim, C. Kouveliotou, L. Kuiper, K. Mori, M. Nynka, J. Park, D. Stern, J. Valverde, D. J. Walton   +27 more
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IXPE Observations of Magnetar Sources

Galaxies
Among the more than 60 sources observed in the first two years of operations, IXPE addressed four magnetars, neutron stars believed to host ultra-strong magnetic fields. We report here the main implication coming from IXPE measurements for the physics of
Roberto Turolla, Roberto Taverna, Silvia Zane, Jeremy Heyl   +3 more
doaj   +1 more source