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Magnetars are regarded as the most magnetized neutron stars in the Universe. Aiming to unveil what kinds of stars and supernovae can create magnetars, we have performed a state-of-the-art spatially resolved spectroscopic X-ray study of the…

高能天体物理现象 · 物理学 2019-09-05 Ping Zhou , Jacco Vink , Samar Safi-Harb , Marco Miceli

The origin of ultra-intense magnetic fields on magnetars is a mystery in modern astrophysics. We model the core collapse dynamics of massive progenitor stars with high surface magnetic fields in the theoretical framework of a self-similar…

高能天体物理现象 · 物理学 2015-05-13 Ren-Yu Hu , Yu-Qing Lou

Magnetars are young neutron stars with extreme magnetic fields (B > 10^{14}-10^{15}G). How these fields relate to the properties of their progenitor stars is not yet clearly established. However, from the few objects associated with young…

太阳与恒星天体物理 · 物理学 2014-11-20 Ben Davies , Don F. Figer , Rolf-Peter Kudritzki , Christine Trombley , Chryssa Kouveliotou , Stefanie Wachter

The distinction between the high-magnetic field pulsars (HBPs, thought to be mainly rotation-powered) and magnetars (commonly believed to be powered by their super-strong magnetic fields) has been recently blurred with the discovery of…

星系天体物理 · 物理学 2015-06-11 Samar Safi-Harb , Harsha S. Kumar

The origin of the strong magnetic fields measured in magnetars is one of the main uncertainties in the neutron star field. On the other hand, the recent discovery of a large number of such strongly magnetized neutron stars, is calling for…

高能天体物理现象 · 物理学 2015-06-22 J. Martin , N. Rea , D. F. Torres , A. Papitto

We have performed a multi-wavelength study of supernova remnant (SNR) G57.2+0.8 and its environment. The SNR hosts the magnetar SGR 1935+2154, which emitted an extremely bright ms-duration radio burst on 2020 Apr 28 (The Chime/Frb…

高能天体物理现象 · 物理学 2020-12-23 Ping Zhou , Xin Zhou , Yang Chen , Jie-Shuang Wang , Jacco Vink , Yuan Wang

It is well established that magnetars are neutron stars with extreme magnetic fields and young ages, but the evolutionary pathways to their creation are still uncertain. Since most massive stars are in binaries, if magnetars are a frequent…

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…

We present a radio continuum and linear polarization study of the Galactic supernova remnant G57.2+0.8, which may host the recently discovered magnetar SGR1935+2154. The radio SNR shows the typical radio continuum spectrum of a mature…

高能天体物理现象 · 物理学 2018-01-10 R. Kothes , X. Sun , B. Gaensler , W. Reich

We explore the prompt magnetar progenitor scenario in the context of fast radio burst (FRB) host galaxies demographics and offset distributions. Magnetars are neutron stars with strong magnetic fields on the order of $10^{15}$ G with a…

高能天体物理现象 · 物理学 2021-01-06 Mohammadtaher Safarzadeh , J. Xavier Prochaska , Kasper E. Heintz , Wen-fai Fong

There are about 70 Galactic supernova remnants (SNRs) that are now confirmed or suggested to be in physical contact with molecular clouds (MCs) with six kinds of evidence of multiwavelength observations. Recent detailed CO-line…

星系天体物理 · 物理学 2015-06-15 Yang Chen , Bing Jiang , Ping Zhou , Yang Su , Xin Zhou , Hui Li , Xiao Zhang

Magnetars are neutron stars in which a strong magnetic field is the main energy source. About two dozens of magnetars, plus several candidates, are currently known in our Galaxy and in the Magellanic Clouds. They appear as highly variable…

高能天体物理现象 · 物理学 2015-06-24 Sandro Mereghetti , Jose' Pons , Andrew Melatos

Stellar winds blown out from massive stars ($\gtrsim 10M_{\odot}$) contain precious information on the progenitor itself, and in this context, the most important elements are carbon (C), nitrogen (N), and oxygen (O), which are produced by…

高能天体物理现象 · 物理学 2023-06-28 Takuto Narita , Hiroyuki Uchida , Takashi Yoshida , Takaaki Tanaka , Takeshi Go Tsuru

Magnetars are a special class of slowly rotating neutron stars with extremely strong magnetic fields -- at least an order of magnitude larger than those of the "normal" radio pulsars. The potential evolutionary links and differences between…

天体物理学 · 物理学 2009-11-13 S. Wachter , E. Ramirez-Ruiz , V. V. Dwarkadas , C. Kouveliotou , J. Granot , S. K. Patel , D. Figer

We present a state-of-the-art scenario for newly born magnetars as strong sources of Gravitational Waves (GWs)in the early days after formation. We address several aspects of the astrophysics of rapidly rotating, ultramagnetized neutron…

天体物理学 · 物理学 2015-05-13 S. Dall'Osso , S. N. Shore , L. Stella

Cosmological Gamma-Ray Bursts (GRBs) are known to arise from distinct progenitor channels: short GRBs mostly from neutron star mergers and long GRBs from a rare type of core-collapse supernova (CCSN) called collapsars. Highly magnetized…

Magnetars are young and highly magnetized neutron stars which display a wide array of X-ray activity including short bursts, large outbursts, giant flares and quasi-periodic oscillations, often coupled with interesting timing behavior…

高能天体物理现象 · 物理学 2017-08-30 Victoria M. Kaspi , Andrei Beloborodov

I discuss the lack of observational evidence that magnetars are formed as rapidly rotating neutron stars. Supernova remnants containing magnetars do not show the excess of kinetic energy expected for such a formation scenario, nor is there…

天体物理学 · 物理学 2008-11-26 Jacco Vink

Among a dozen known magnetar candidates there are no binary objects. As an estimate of a fraction of binary neutron stars is about 10% it is reasonable to address the question of solitarity of magnetars, to estimate theoretically the…

天体物理学 · 物理学 2015-06-24 S. B. Popov , M. E. Prokhorov

The physics of core-collapse (CC) supernovae (SNe) and how the explosions depend on progenitor properties are central questions in astronomy. For only a handful of SNe, the progenitor star has been identified in pre-explosion images.…

太阳与恒星天体物理 · 物理学 2019-01-30 Katie Auchettl , Laura A. Lopez , Carles Badenes , Enrico Ramirez-Ruiz , John F. Beacom , Tyler Holland-Ashford
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