Results 71 to 80 of about 12,989 (225)

Twisted magnetar magnetospheres

open access: yesMonthly Notices of the Royal Astronomical Society, 2023
ABSTRACT Magnetar magnetospheres are strongly twisted, and are able to power sudden energetic events through the rapid release of stored electromagnetic energy. In this paper, we investigate twisted relativistic force-free axisymmetric magnetospheres of rotating neutron stars.
D Ntotsikas   +3 more
openaire   +4 more sources

Seltene und extreme Supernovae

open access: yesPhysik in unserer Zeit, Volume 55, Issue 1, Page 40-46, January 2024.
Robotische Teleskope entdecken eine zunehmende Vielfalt transienter Strahlungsquellen, deren ungewöhnliche Eigenschaften neue Arten von Sternexplosionen nahelegen. Obwohl die absolute Häufigkeit solcher Ereignisse sehr klein ist, erlaubt ihre extreme Helligkeit relativ häufige Sichtungen, stellt aber theoretische Modelle vor große Herausforderungen ...
Hans‐Thomas Janka
wiley   +1 more source

X-ray Polarization from Magnetar Sources

open access: yesGalaxies
The launch of the IXPE telescope in late 2021 finally made polarization measurements in the 2–8keV band a reality, more than 40 years after the pioneering observations of the OSO-8 satellite.
Roberto Taverna , Roberto Turolla 
doaj   +1 more source

Relativistic models of magnetars: Nonperturbative analytical approach

open access: yes, 2011
In the present paper we focus on building simple nonperturbative analytical relativistic models of magnetars. With this purpose in mind we first develop a method for generating exact interior solutions to the static and axisymmetric Einstein-Maxwell ...
H. Stefani   +6 more
core   +1 more source

Role of Time‐Varying Magnetic Field on QGP Equation of State

open access: yesAdvances in High Energy Physics, Volume 2024, Issue 1, 2024.
The phase diagram of quantum chromodynamics (QCD) and its associated thermodynamic properties of quark‐gluon plasma (QGP) are studied in the presence of time‐dependent magnetic field. The study plays a pivotal role in the field of cosmology, astrophysics, and heavy‐ion collisions. In order to explore the structure of quark‐gluon plasma to deal with the
Yogesh Kumar   +6 more
wiley   +1 more source

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

open access: yesThe 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

VLT/NACO observations of the High-Magnetic field radio pulsar PSR J1119-6127

open access: yes, 2007
Recent radio observations have unveiled the existence of a number of radio pulsars with spin-down derived magnetic fields in the magnetar range. However, their observational properties appears to be more similar to classical radio pulsars than to ...
Alpar   +63 more
core   +1 more source

The 2022 high-energy outburst and radio disappearing act of the magnetar 1E 1547.0-5408 [PDF]

open access: green, 2023
M. E. Lower   +21 more
openalex   +1 more source

The Minimum Variation Timescales of X-Ray Bursts from SGR J1935+2154

open access: yesThe Astrophysical Journal Supplement Series, 2023
The minimum variation timescale (MVT) of soft gamma-ray repeaters can be an important probe to estimate the emission region in pulsar-like models, as well as the Lorentz factor and radius of the possible relativistic jet in gamma-ray burst (GRB)–like ...
Shuo Xiao   +36 more
doaj   +1 more source

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