Results 51 to 60 of about 525 (178)

Zeeman Splitting of Torsional Oscillation Frequencies of Magnetars

open access: yesUniverse, 2023
Magnetars form a special class of neutron stars possessing superstrong magnetic fields and demonstrating power flares triggered by these fields. Observations of such flares reveal the presence of quasi-periodic oscillations (QPOs) at certain frequencies;
Dmitry Yakovlev
doaj   +1 more source

Heavy Elements and Electromagnetic Transients from Neutron Star Mergers

open access: yesAnnalen der Physik, Volume 536, Issue 2, February 2024.
Astro‐(physics) has made major leaps forward through the combined information provided by both gravitational waves and electromagnetic emission from the first detected neutron star merger event. This review provides an up‐to‐date overview of today's understanding of neutron star mergers and their electromagnetic emission and it discusses possible ...
Stephan Rosswog, Oleg Korobkin
wiley   +1 more source

Multipolar Electromagnetic Emission of Newborn Magnetars

open access: yesThe Astrophysical Journal
It is generally recognized that the electromagnetic multipolar emission from magnetars can be used to explain radiation from soft gamma repeaters or anomalous X-ray pulsars, but they have little impact on the spin-down of magnetars.
Yu Wang, Rahim Moradi, Liang Li
doaj   +1 more source

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

Magnetars

open access: yes
Magnetars are the most magnetic objects in the Universe, serving as unique laboratories to test physics under extreme magnetic conditions that cannot be replicated on Earth. They were discovered in the late 1970s through their powerful X-ray flares, and were subsequently identified as neutron stars characterized by steady and transient emission across ...
Rea, Nanda, De Grandis, Davide
openaire   +3 more sources

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

Magnetar Spin-Down

open access: yesThe Astrophysical Journal, 1999
10 pages, 1 figure, accepted for Astrophysical Journal Letters, typos ...
Harding, Alice K.   +2 more
openaire   +3 more sources

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

Ambipolar Heating of Magnetars

open access: yesThe 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   +5 more
doaj   +1 more source

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

open access: yesJournal 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   +8 more
doaj   +1 more source

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