Browsing by Subject "ISM: supernova remnants"
Now showing items 1-10 of 25
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Chandra and HESS observations of the supernova remnant CTB 37B
(EDP Sciences, 2008)We discovered the >100 GeV γ-ray source, HESS J1713−381, apparently associated with the shell-type supernova remnant (SNR) CTB37B, using HESS in 2006. In 2007 we performed X-ray follow-up observations with Chandra with ... -
Cosmic-ray acceleration and escape from post-adiabatic supernova remnants
(EDP Sciences, 2020)Context. Supernova remnants are known to accelerate cosmic rays on account of their nonthermal emission of radio waves, X-rays, and gamma rays. Although there are many models for the acceleration of cosmic rays in supernova ... -
Deeper H.E.S.S. observations of Vela Junior (RX J0852.0-4622): morphology studies and resolved spectroscopy
(EDP Sciences, 2018)Aims. We study γ-ray emission from the shell-type supernova remnant (SNR) RX J0852.0−4622 to better characterize its spectral properties and its distribution over the SNR. Methods. The analysis of an extended High Energy ... -
Detailed spectral and morphological analysis of the shell type supernova remnant RCW 86
(EDP Sciences, 2018)Aims. We aim for an understanding of the morphological and spectral properties of the supernova remnant RCW 86 and for insights into the production mechanism leading to the RCW 86 very high-energy γ-ray emission. Methods. ... -
Discovery of gamma-ray emission from the extragalactic pulsar wind nebula N 157B with H.E.S.S
(EDP Sciences, 2012)We present the significant detection of the first extragalactic pulsar wind nebula (PWN) detected in gamma rays, N 157B, located in the large Magellanic Cloud (LMC). Pulsars with high spin-down luminosity are found to power ... -
The effect of diffusion on the particle spectra in pulsar wind nebulae
(IOP Publishing, 2013)A possible way to calculate particle spectra as a function of position in pulsar wind nebulae is to solve a Fokker–Planck transport equation. This paper presents numerical solutions to the transport equation with the ... -
The effect of drift on the evolution of the electron/positron spectra in an axisymmetric pulsar wind nebula
(IOP Publishing, 2014)Charged particles propagating through a structured magnetic field are subject to drift motion. The primary aim of the present paper is therefore to investigate the effects of gradient, curvature, and neutral sheet drift ... -
Exploiting morphological data from Pulsar Wind Nebulae via a spatiotemporal leptonic transport code
(Oxford Univ Press, 2020)The next era of ground-based Cherenkov telescope development will see a great increase in both quantity and quality of γ-ray morphological data. This initiated the development of a spatiotemporal leptonic transport code ... -
H.E.S.S. detection of TeV emission from the interaction region between the supernova remnant G349.7+0.2 and a molecular cloud
(EDP Sciences, 2015)G349.7+0.2 is a young Galactic supernova remnant (SNR) located at the distance of 11.5 kpc and observed across the entire electromagnetic spectrum from radio to high energy (HE; 0.1 GeV <E< 100 GeV) γ-rays. Radio and ... -
H.E.S.S. observations of RX J1713.7−3946 with improved angular and spectral resolution: evidence for gamma-ray emission extending beyond the X-ray emitting shell
(EDP Sciences, 2018)Supernova remnants exhibit shock fronts (shells) that can accelerate charged particles up to very high energies. In the past decade, measurements of a handful of shell-type supernova remnants in very high-energy gamma ...