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Strong magnetic field of accreting neutron stars ($10^{14}$ G) is hard to probe by X-ray spectroscopy but can be indirectly inferred from spin-up/spin-down measurement in X-ray pulsars. The existing observations of slowly rotating X-ray…

High Energy Astrophysical Phenomena · Physics 2015-06-16 K. A. Postnov , N. I. Shakura , A. Yu. Kochetkova , L. Hjalmarsdotter

In this brief review I summarize our basic knowledge about different types of isolated neutron stars. I discuss radio pulsars, central compact objects in supernova remnants, magnetars, near-by cooling neutron stars (aka the Magnificent…

High Energy Astrophysical Phenomena · Physics 2023-06-06 Sergei B. Popov

The very-high-energy (VHE; E > 100 GeV) gamma-ray emission observed from a number of Supernova remnants (SNRs) indicates particle acceleration to high energies at the shock of the remnants and a potentially significant contribution to…

High Energy Astrophysical Phenomena · Physics 2022-03-02 Iurii Sushch , Robert Brose , Martin Pohl , Pavlo Plotko , Samata Das

Core-collapse supernova remnants (CCSNRs) are crucial for understanding the final stages of massive star evolution, as they reflect the imprints of their progenitors' pre-explosion activities. However, the evolution of CCSNRs, particularly…

High Energy Astrophysical Phenomena · Physics 2026-04-02 Gaku Kawashima , Shiu-Hang Lee , Keiichi Maeda , Daniel Patnaude

We report detection of magnetar-like X-ray bursts from the young pulsar PSR J1846-0258, at the center of the supernova remnant Kes 75. This pulsar, long thought to be rotation-powered, has an inferred surface dipolar magnetic field of…

The X-ray emission from a supernova remnant (SNR) is a powerful diagnostic of the state of the shocked plasma. The temperature (kT) and the emission measure (EM) of the shocked-gas are related to the energy of the explosion, the age of the…

High Energy Astrophysical Phenomena · Physics 2020-05-21 D. A. Leahy , S. Ranasinghe. M. Gelowitz

A review of the possible relationship between gamma-ray sources and supernova remnants (SNRs) is presented. Particular emphasis is given to the analysis of the observational status of the problem of cosmic ray acceleration at SNR shock…

This paper suggests the idea that all neutron stars experienced at birth an ultrafast decay of their magnetic fields from their initial values to their current surface values. If the electromagnetic energy radiated during this field decay…

Astrophysics of Galaxies · Physics 2012-04-05 Ricardo Heras

The high-energy sources known as anomalous X-ray pulsars (AXPs) and soft gamma-ray repeaters (SGRs) are well explained as magnetars: isolated neutron stars powered by their own magnetic energy. After explaining why it is generally believed…

High Energy Astrophysical Phenomena · Physics 2015-06-15 Sandro Mereghetti

We briefly reviewed some recent progress on the studies of supernova remnants (SNRs), including the radio SNRs (the structure, polarization, spectrum etc.), observational characteristics of X-ray emission, pulsar wind nebulae (PWNe),…

High Energy Astrophysical Phenomena · Physics 2009-09-03 Jian-Wen Xu

Supernova remnants (SNRs) are powerful particle accelerators. As a supernova (SN) blast wave propagates through the circumstellar medium (CSM), electrons and protons scatter across the shock and gain energy by entrapment in the magnetic…

High Energy Astrophysical Phenomena · Physics 2017-10-25 G. Zanardo , L. Staveley-Smith , C. -Y. Ng , R. Indebetouw , M. Matsuura , B. M. Gaensler , A. K. Tzioumis

Shocks of supernova remnants (SNRs) are important (and perhaps the dominant) agents for production of the Galactic cosmic rays. Recent $\gamma$-ray observations of several SNRs have made this case more compelling. However, these broadband…

High Energy Astrophysical Phenomena · Physics 2012-12-12 Qiang Yuan , Siming Liu , Xiao-Jun Bi

The evolution of neutron star (NS) magnetic field (B-field) has long been an important topic, which is still not yet settled down. Here, we analyze the NS B-fields inferred by the cyclotron resonance scattering features (CRSFs) for the high…

High Energy Astrophysical Phenomena · Physics 2019-11-15 Chang-Qing Ye , De-Hua Wang , Cheng-Min Zhang , Zhen-Qi Diao

Thanks to the unprecedented spectral resolution and sensitivity of the Soft X-ray Spectrometer (SXS) to soft thermal X-ray emission, ASTRO-H will open a new discovery window for understanding young, ejecta-dominated, supernova remnants…

Recently, several accreting neutron stars (NSs) in X-ray binary systems inside supernova remnants have been discovered. They represent a puzzle for the standard magneto-rotational evolution of NSs, as their ages ($\lesssim 10^5$ years) are…

High Energy Astrophysical Phenomena · Physics 2022-02-23 A. D. Khokhriakova , S. B. Popov

Estimations of magnetic fields of neutron stars, observed as radio and X-ray pulsars, are discussed. It is shown, that theoretical and observational values for different types of radiopulsars are in good correspondence. Magnetic fields of…

Astrophysics · Physics 2007-05-23 G. S. Bisnovatyi-Kogan

There is growing evidence that soft gamma-ray repeaters (SGRs) and anomalous X-ray pulsars (AXPs) are isolated neutron stars with superstrong magnetic fields, i.e., magnetars, marking them a distinguished species from the conventional…

Astrophysics · Physics 2016-01-27 Bing Zhang

Supernova remnants are beautiful astronomical objects that are also of high scientific interest, because they provide insights into supernova explosion mechanisms, and because they are the likely sources of Galactic cosmic rays. X-ray…

High Energy Astrophysical Phenomena · Physics 2012-01-05 Jacco Vink

A substantial fraction of the known neutron stars resides in X-ray binaries -- systems in which one compact object accretes matter from a companion star. Neutron stars in X-ray binaries have magnetic fields among the highest found in the…

High Energy Astrophysical Phenomena · Physics 2015-06-23 Mikhail Revnivtsev , Sandro Mereghetti

We have investigated three SNRs in the LMC using multi-wavelength data. These SNRs are generally fainter than the known sample and may represent a previously missed population. One of our SNRs is the second LMC remnant analyzed which is…

Cosmology and Nongalactic Astrophysics · Physics 2011-02-01 Matthew D. Klimek , S. D. Points , R. C. Smith , R. L. Shelton , R. Williams
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