Results 31 to 40 of about 455 (137)
Astronomische Nachrichten, Volume 345, Issue 4, May 2024.Abstract The magnetic field in the O9.7 V star HD 54879 has been monitored for almost a decade. Spectropolarimetric observations reveal a rather strong mean longitudinal magnetic field that varies with a period of about 7.41 years. Observations in the Hα$$ \alpha $$ line show a variation with the same period, while the Hβ$$ \beta $$ line shows only ...
Manfred Küker +4 more
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Heavy Elements and Electromagnetic Transients from Neutron Star Mergers
Annalen 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
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Seltene und extreme Supernovae
Physik 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
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X-ray Polarization from Magnetar Sources
GalaxiesThe 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
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Pulsed γ-ray emission from magnetar 1E 2259+586 [PDF]
Journal 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
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Role of Time‐Varying Magnetic Field on QGP Equation of State
Advances 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
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Multipolar Electromagnetic Emission of Newborn Magnetars
The Astrophysical JournalIt 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
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Analytical Methods for High Energy Physics
, 2019 Advances in High Energy Physics, Volume 2019, Issue 1, 2019.
Saber Zarrinkamar +2 more
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Chiral anomalous processes in magnetospheres of pulsars and black holes
European Physical Journal C: Particles and Fields, 2022 We propose that chirally asymmetric plasma can be produced in the gap regions of the magnetospheres of pulsars and black holes. We show that, in the case of supermassive black holes situated in active galactic nuclei, the chiral charge density and the ...
Eduard V. Gorbar, Igor A. Shovkovy
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Low-energy Radio Bursts from Magnetar XTE J1810−197: Implications for Fast Radio Bursts
The Astrophysical JournalMagnetars are the leading candidate sources of fast radio bursts (FRBs). However, the observational probes of the connections between magnetars and FRBs are severely limited by the paucity of detection of highly energetic radio events from magnetars—to ...
Banshi Lal +5 more
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