Results 101 to 110 of about 3,165 (200)

Formation Channels of Magnetars

open access: yesThe 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

INTEGRAL IBIS Catalog of Magnetar Bursts

open access: yesThe Astrophysical Journal
One of the distinctive properties of magnetars, young neutron stars powered mainly by magnetic energy, is the emission of short (≲1 s) bursts of hard X-rays. Such bursts have been observed in nearly all the known magnetars, although at different and time-
Dominik Patryk Pacholski   +2 more
doaj   +1 more source

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

open access: yesGalaxies
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   +4 more
doaj   +1 more source

A Target Search for Fast Radio Bursts Associated with Two Fast Blue Optical Transients: AT2018cow and CSS161010

open access: yesThe Astrophysical Journal
Fast blue optical transients (FBOTs) are luminous, rapidly evolving events with blue spectra, possibly powered by newborn magnetars and linked to fast radio bursts (FRBs).
Shi-Jie Gao   +7 more
doaj   +1 more source

Magnetic Field Effects on the Structure of Neutron Stars

open access: yesUniverse
We investigate the impact of ultrastrong magnetic fields on the structure of neutron stars within a density-dependent relativistic mean-field framework (DDME2).
Harsh Chandrakar   +7 more
doaj   +1 more source

IXPE Observations of Magnetar Sources

open access: yesGalaxies
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   +3 more
doaj   +1 more source

The Self-organized Criticality Behaviors of Pulses in Magnetar Bursts

open access: yesThe Astrophysical Journal Supplement Series
The overall temporal and spectral characteristics (e.g., duration, fluence, peak flux, peak count rate, and total counts) of X-ray bursts (XRBs) originating from magnetars have been extensively studied to confirm their self-organized criticality (SOC ...
Shuo Xiao   +20 more
doaj   +1 more source

Braking index of PSR J1846−0258: a model of magnetic inclination evolution and its gravitational-wave implication

open access: yesFrontiers in Astronomy and Space Sciences
We explain the braking index n=2.19±0.03 of PSR J1846−0258 by incorporating the time evolution of its magnetic inclination angle and dipolar magnetic field. Based on observational timing data and the age of the associated supernova remnant (tSNR≈1.77kyr),
Biao-Peng Li   +8 more
doaj   +1 more source

Observations of Radio Magnetars with the Deep Space Network

open access: yesAdvances in Astronomy, 2019
The Deep Space Network (DSN) is a worldwide array of radio telescopes which supports NASA’s interplanetary spacecraft missions. When the DSN antennas are not communicating with spacecraft, they provide a valuable resource for performing observations of ...
Aaron B. Pearlman   +2 more
doaj   +1 more source

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