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HEASA 2024

1–5 Oct 2024
Africa/Johannesburg timezone

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Session

Pulsars and Pulsar Wind Nebulae

2 Oct 2024, 13:30

Conveners

Pulsars and Pulsar Wind Nebulae

  • Hartmut Winkler

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  1. 44. Pulsar Wind Nebulae as Galactic PeVatron candidates
    Elena Amato (INAF - Osservatorio Astrofisico di Arcetri)
    02/10/2024, 13:30
    Pulsars and Pulsar Wind Nebulae
    Invited Talk

    Pulsar Wind Nebulae are highly intriguing astrophysical objects in many respects. They are the brightest and closest class of relativistic sources, and hence the ultimate laboratory for the physics of relativistic plasmas, where we can study in unique detail processes such as acceleration and collimation of relativistic outflows, or the acceleration of particles at relativistic shocks. In...

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  2. 30. The possible detection of γ-ray pulsations from J1912-4410 and EUVE J0317-855 using Fermi-LAT observations.
    Lurgasho Minnie (University of the Free State)
    02/10/2024, 14:00
    Pulsars and Pulsar Wind Nebulae
    Contributed Talk

    We report the possible detection of γ-ray pulsations from both the recently
    discovered ∼4.03 hour binary system J1912-4410 which consists of a white dwarf
    rotating at Pspin=319.34903(8)s (∼5.32 minutes, Pelisoli et al. 2023) with an M-
    dwarf companion and the 725.5(8)s (∼12 minutes, Ferarrio et al. 1997) rotating,
    isolated white dwarf EUVE J0317-855 using ∼15 years of observations from...

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  3. 32. Towards Modelling AR Sco: Convergence to Aristotelian Electrodynamics and First Results
    Louis du Plessis
    02/10/2024, 14:15
    Pulsars and Pulsar Wind Nebulae
    Contributed Talk

    The wealth of multi-wavelength observations for AR Sco at high cadence enables measurement of the system parameters versus orbital phase instead of averaging over large ranges of the orbital phase. Current emission and geometric models for AR Sco are unable to accurately and jointly model the light curves, spectra and polarisation signatures of the source AR Sco. Thus, it is crucial to develop...

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  4. 19. Pulsed Gamma-Ray Emission from AR Scorpii and AE Aquarii using Fermi LAT Data
    Mr Spencer Tendai Madzime (University of the Free State)
    02/10/2024, 14:30
    X-Ray and Gamma-Ray Binaries
    Contributed Talk

    We report the detection of steady and pulsed gamma-ray emission from AR Scorpii and AE Aquarii using data from the Fermi Large Area Telescope (LAT). Both sources exhibit a detection significance above Fermi LAT threshold (5 $\sigma$), despite not being listed in the Fermi LAT catalog due to the standard analysis approach rendering them insignificant. Previous studies have indicated a detection...

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