Results 1 to 10 of about 3,019,248 (252)
On the soft emission mechanism in X-ray pulsars
Journal of Theoretical and Applied Physics, 2019 We propose a mechanism responsible for the soft emission in X-ray pulsars. We discuss the origin of the soft emission for isolated X-ray pulsars as well as for soft gamma-ray repeaters and anomalous X-ray pulsars.
Paolo Cea
doaj +2 more sources
CENTRAL ENGINE MEMORY OF GAMMA-RAY BURSTS AND SOFT GAMMA-RAY REPEATERS [PDF]
The Astrophysical Journal Letters, 2016 ABSTRACT Gamma-ray bursts (GRBs) are bursts of γ-rays generated from relativistic jets launched from catastrophic events such as massive star core collapse or binary compact star coalescence. Previous studies suggested that GRB emission is erratic, with no noticeable memory in the central engine.
Bin-Bin Zhang +2 more
openaire +5 more sources
Quiescent High‐Energy Gamma‐Ray Emission from Soft Gamma‐Ray Repeaters [PDF]
The Astrophysical Journal, 2002 We present a model for the high-energy γ-ray emission from the outer gap of soft gamma-ray repeaters (SGRs) during their quiescent states. In this model, X-rays come from the stellar surface, but the emerging X-ray spectrum will have a power-law tail because of the multiple scattering at the cyclotron resonance in the magnetosphere, as pointed out by ...
Cheng, KS, Zhang, L
openaire +5 more sources
Physics of Neutron Star Crusts [PDF]
Living Reviews in Relativity, 2008 The physics of neutron star crusts is vast, involving many different research fields, from nuclear and condensed matter physics to general relativity.
Chamel Nicolas, Haensel Pawel
doaj +2 more sources
The energy spectrum of anomalous X-ray pulsars and soft gamma-ray repeaters [PDF]
Astronomy and Astrophysics, 2010 Assuming that AXPs and SGRs accrete matter from a fallback disk, we attempt to explain both the soft and the hard X-ray emission as the result of the accretion process. We also attempt to explain their radio emission or the lack of it. We test the hypothesis that the power-law, hard X-ray spectra are produced in the accretion flow mainly by bulk-motion
Trümper, J. E. +3 more
openaire +8 more sources
Nature and Nurture: a Model for Soft Gamma-Ray Repeaters
The Astrophysical Journal, 2000 emulateapj, 5 pages, accepted by ApJ ...
Zhang, Bing, Xu, R. X., Qiao, G. J.
openaire +3 more sources
Experimental Measurements and Computer Simulation of Fission Product Gamma-Ray Spectra [PDF]
, 1997 Airborne gamma ray spectrometry using high volume scintillation detectors, optionally in conjunction with Ge detectors, has potential for making rapid environmental measurements in response to nuclear accidents. An experimental investigation and computer
Sanderson, D.C.W. +4 more
core +9 more sources
The Astrophysical Journal, 2023 The galactic, fast-radio-burst-emitting magnetar SGR 1935+2154 entered an active X-ray burst episode in 2021 September, nearly a year after emitting a fast radio burst with an X-ray counterpart.
Noor ul Sabah Rehan, Alaa I. Ibrahim
doaj +1 more source
Quasiperiodic Peak Energy Oscillations in X-Ray Bursts from SGR J1935+2154
The Astrophysical Journal Letters, 2023 Magnetars are young neutron stars powered by the strongest magnetic fields in the Universe (10 ^13–15 G). Their transient X-ray emission usually manifests as short (a few hundred milliseconds), bright, energetic (∼10 ^40–41 erg) X-ray bursts.
Oliver J. Roberts +8 more
doaj +1 more source
Similarities in the Temporal Properties of Gamma-Ray Bursts and Soft Gamma-Ray Repeaters [PDF]
AIP Conference Proceedings, 2004 To appear in the proceedings of the 2003 GRB Conference, Santa Fe, 4 pages, 4 ...
McBreen, S. +5 more
openaire +2 more sources