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Magnetar counterparts, kinematics, and birth sites with HST and JWST
Astronomy & AstrophysicsAims. Magnetars are highly magnetised, isolated neutron stars with uncertain formation channels. They comprise a potentially significant fraction of the young neutron star population in the Milky Way and are implicated in the explosion mechanisms of some
Chrimes A. A. +9 more
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A Brief, Biased View of Neutron Star Cooling
Astronomische Nachrichten, Volume 346, Issue 1, January 2025.ABSTRACT This is a concise and non‐technical review of topics related to neutron star (NS) cooling, for both young NSs and NSs in low‐mass x‐ray binaries. Neutrino emission from the NS core drives cooling rates, via different processes including Urca processes and pair breaking and formation at the neutron superfluid critical temperature.
Craig Heinke
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, 2013 It is now widely accepted that soft gamma repeaters and anomalous X-ray pulsars are the observational manifestations of magnetars, i.e. sources powered by their own magnetic energy.
PAOLO ESPOSITO, TUROLLA, ROBERTO
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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
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, 2005 P-stars are compact stars made of up and down quarks in beta-equilibrium with electrons in a chromomagnetic condensate. P-stars are able to account for compact stars like RXJ 1856.5-3754 and RXJ 0720.4-3125, stars with radius comparable with canonical neutron stars, as well as super massive compact objects like SgrA*.
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Zeeman Splitting of Torsional Oscillation Frequencies of Magnetars
Universe, 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
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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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Cosmic Rays from Pulsars and Magnetars
, 2019 We compare the expected abundance of cosmic ray electrons and positrons from pulsars and magnetars. We assume that the distribution of infant pulsars and magnetars follows that of high-mass stars in the Milky Way and that the production rate of cosmic ...
Heyl, Jeremy S. +2 more
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