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    Modelling the stellar soft-photon energy density of globular clusters 

    Prinsloo, Phillip L.; Venter, Christo; Busching, Ingo; Kopp, Andreas (South African Institute of Physics, 2014)
    Recent observations by e.g. Fermi LAT and H.E.S.S. have revealed globular clusters to be sources of high-energy and very-high-energy gamma rays. It has been suggested that the presence of large numbers of millisecond pulsars ...
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    Simultaneous spectral and spatial modelling of young pulsar wind nebulae 

    Van Rensburg, Carlo; Venter, Christo; Krüger, P. Paulus (Sissa Medialab, 2017)
    We model the morphology and spectrum of a pulsar wind nebula using a leptonic emission code. This code is a time-dependent, multi-zone model that investigates the changes in the particle spectrum as they traverse the ...
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    Modelling energy-dependent pulsar light curves due to curvature radiation 

    Barnard, Monica; Venter, Christo; Harding, Alice K.; Kalapotharakos, Constantinos (Sissa Medialab, 2017)
    Pulsars emit pulsed emission across the entire electromagnetic spectrum and their light curve phenomenology is strongly dependent on energy. This is also true for the gamma-ray waveband. Continued detections by Fermi Large ...
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    Assessment of a statistical approach that facilitates the constraint of pulsar geometry via dualband light curve fitting 

    Bezuidenhout, Mechiel C.; Venter, Christo; Seyffert, Albertus S.; Harding, Alice K. (Sissa Medialab, 2017)
    The Large Area Telescope aboard the Fermi spacecraft has detected more than 200 γ-ray pulsars since its launch in 2008. By concurrently fitting standard geometric model light curves onto Fermi and radio data, researchers ...
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    High-energy emission properties of pulsars 

    Venter, Christo; Harding, Alice K.; Grenier, Isabelle (PoS, 2017)
    The sheer number of new γ-ray pulsar discoveries by the Fermi Large Area Telescope since 2008, combined with the quality of new multi-frequency data, has caused a revolution in the field of high-energy rotation-powered ...
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    New advances in pulsar magnetosphere modelling 

    Venter, Christo (Sissa Medialab, 2016)
    The wealth of high-energy (E &50MeV) and very-high-energy (E >100 GeV) data accumulated over the past few years have provided unprecedented opportunities to probe pulsar emission models. The Fermi Large Area Telescope ...
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    Simultaneous fitting of the spectral energy density, energy-dependent size, and X-ray spectral index vs. radius of the young pulsar wind nebula PWN G0.9+0.1 

    Van Rensburg, Carlo; Venter, Christo (Sissa Medialab, 2018)
    We have constructed and calibrated a spherically-symmetric, spatially-dependent particle transport and emission code for young pulsar wind nebulae (PWNe). This code predicts the spectral energy distribution (SED) of the ...
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    High-energy emission from Black Widows and Redbacks 

    Wadiasingh, Zorawar; Venter, Christo; Böttcher, Markus; Harding, Alice K. (Sissa Medialab, 2015)
    A large number of new black widow and redback energetic millisecond pulsars with irradiated stellar companions have been discovered through radio searches of unidentified Fermi sources. We construct a 3D emission model ...
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    Spectral modelling of a H.E.S.S.-detected pulsar wind nebula 

    Van Rensburg, Carlo; Krüger, Paulus; Venter, Christo (SAIP, 2015)
    In the last decade ground-based Imaging Atmospheric Cherenkov Telescopes have discovered roughly 30 pulsar wind nebulae at energies above 100 GeV. We present first results from a leptonic emission code that models the ...
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    The aid of optical studies in understanding millisecond pulsar binaries 

    Wadiasingh, Zorawar; Venter, Christo; Böttcher, Markus; Harding, Alice K. (Sissa Medialab, 2016)
    A large number of new “black widow” and “redback” energetic millisecond pulsars with irradiated stellar companions have been discovered through radio and optical searches of unidentified Fermi sources. Synchrotron emission, ...
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    Venter, Christo (12)
    Harding, Alice K. (6)Van Rensburg, Carlo (3)Böttcher, Markus (2)Kopp, Andreas (2)Wadiasingh, Zorawar (2)Ataï, Arache Djannati (1)Barnard, Monica (1)Bezuidenhout, Mechiel C. (1)Busching, Ingo (1)... View MoreDate Issued2017 (4)2015 (3)2016 (3)2014 (1)2018 (1)Has File(s)
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