Results 41 to 50 of about 17,260 (230)
Temporary Singularities and Axions: An Analytic Solution that Challenges Charge Conservation
Annalen der Physik, Volume 533, Issue 6, June 2021., 2021 Is charge conservation sacrosact? If so, why? Even when local charge conservation remains in force, the presence of a temporary singularity can give rise to surprising results. This work shows how global charge conservation can be broken after the combined appearance of both new charge and an axion‐like field from the singularity.
Jonathan Gratus +2 more
wiley +1 more source
Formation rates and evolution histories of magnetars [PDF]
Monthly notices of the Royal Astronomical Society, 2019 We constrain the formation rate of Galactic magnetars directly from observations. Combining spin-down rates, magnetic activity, and association with supernova remnants, we put a 2$\sigma$ limit on their Galactic formation rate at $2.3-20\mbox{kyr}^{-1}$.
P. Beniamini +3 more
semanticscholar +1 more source
A search for runaway stars in 12 Galactic supernova remnants
Astronomische Nachrichten, Volume 342, Issue 3, Page 553-577, March 2021., 2021 Runaway stars can result from core‐collapse supernovae in multiple stellar systems. If the supernova disrupts the system, the companion is ejected with its former orbital velocity. A clear identification of a runaway star can yield the time and place of the explosion, as well as orbital parameters of the pre‐supernova binary system.
Oliver Lux +3 more
wiley +1 more source
On the Rate of Crustal Failures in Young Magnetars [PDF]
Astrophysical Journal, 2020 The activity of magnetars is powered by their intense and dynamic magnetic fields and has been proposed as the trigger to extragalactic fast radio bursts.
C. Dehman +5 more
semanticscholar +1 more source
Explaining high braking indices of magnetars SGR 0501+4516 and 1E 2259+586 using the double magnetic‐dipole model [PDF]
Astronomical Notes - Astronomische Nachrichten, 2020 In this paper, we attribute high braking indices $n>3$ of two magnetars SGR 0501$+$4516 and 1E 2259$+$586 to the decrease in their inclination angles using the double magnetic-dipole model proposed by Hamil et al.(2016).
Fang-jia Yan +3 more
semanticscholar +1 more source
Magnetars from Neutron Star–White Dwarf Mergers: Application to Fast Radio Bursts [PDF]
Astrophysical Journal, 2020 It is widely believed that magnetars could be born in core-collapse supernovae (SNe), binary neutron star (BNS) or binary white dwarf (BWD) mergers, or accretion-induced collapse (AIC) of white dwarfs.
S. Zhong, Z. Dai
semanticscholar +1 more source
Solving the Mystery of Fast Radio Bursts: A Detective’s Approach
Universe, 2023 Fast radio bursts (FRBs) are still a mystery in contemporary astrophysics. Unlike many other astronomical objects whose basic physical mechanism is already identified and the research on which focuses mainly on refining details, FRBs are still largely ...
Bing Zhang
doaj +1 more source
Implications of a "Fast Radio Burst" from a Galactic Magnetar [PDF]
, 2020 A luminous radio burst was recently detected in temporal coincidence with a hard X-ray flare from the Galactic magnetar SGR 1935+2154 with a time and frequency structure consistent with cosmological fast radio bursts (FRB) and a fluence within a factor ...
Beniamini, Paz +3 more
core +2 more sources
NICER Observation of the Temporal and Spectral Evolution of Swift J1818.0−1607: A Missing Link between Magnetars and Rotation-powered Pulsars [PDF]
Astrophysical Journal, 2020 We report on the hard X-ray burst and the first ∼100 days of NICER monitoring of the soft X-ray temporal and spectral evolution of the newly discovered magnetar Swift J1818.0−1607.
Chin-Ping Hu +15 more
semanticscholar +1 more source
Nuclear Physics B, 2019 Interaction between the gravitational waves (GWs) and the strong magnetic fields would lead to the perturbed electromagnetic waves (EMWs). Magnetars can have ultra-strong surface magnetic fields ∼1011Tesla, and meanwhile, they would generate the thermal ...
Hao Wen +3 more
doaj +1 more source