HEASA2022 - (other heasa conferences)
28 September - 1 October 2022
Brandfort, South Africa
published December 27, 2023
Entries on ADS

HEASA 2022 was the ninth conference in the annual series "High Energy Astrophysics in
Southern Africa". Its goal was to bring together scientists from the southern African region, the
African continent, and around the world with an interest in high-energy astrophysical phenomena.
Topics discussed included theoretical, multi-wavelength, and multi-messenger observational
aspects of astrophysical sources (e.g. active galactic nuclei (AGNs), galaxy systems, gamma-ray
bursts (GRBs), X-ray/gamma-ray binaries, supernovae and supernova remnants, neutron stars,
pulsars and pulsar wind nebulae, cataclysmic variables (CVs)) as well as modern aspects of
astro-particle physics. HEASA 2022 was held during the period of 28 September – 01 October
2022, as a hybrid conference with 42 in person contributions, 9 remote talks and 9 posters. It
was sponsored by the Department of Science and Innovation and the National Research
Foundation of South Africa through the South African Gamma-Ray Astronomy Programme (SA-
GAMMA).

Editorial Board

  • Michael Backes
    University of Namibia, Department of Physics, Private Bag 13301, Windhoek 10005, Namibia
  • Markus Böttcher
    North-West University, Potchefstroom
  • David Buckley
    SAAO/UCT/UFS
  • Andrew Chen
    Wits, South Africa
  • Pieter Meintjes
    Department of Physics, University of the Free State, PO Box 339, Bloemfontein 9300, South Africa
  • Soebur Razzaque
    U Johannesburg
conference main image
Sessions
Agn i
Agn ii
Binaries
Binaries/Pulsars
SNRs/Multi-Messenger
Agn iii
Extreme Universe
Black Holes
Posters
Agn i
Pair production and jet power in galactic and extragalactic jets
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A. Zdziarski
Flux distribution study of PKS 0208-512 using long-term multi-band observations
R. Khatoon, M. Boettcher and R. Prince
Constraining magnetic fields and gamma-ray production zones in blazar jets by fitting the broad-band spectral energy distribution.
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M. Ntshatsha
A hadronic synchrotron mirror model for blazars - Application to 3C 279
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L.L. Oberholzer
Neutrino Emission from Bright Blazar Flares
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J. Robinson
Agn ii
Multi-messenger emission from magnetically dominated baryon-loaded blazar jets
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M. Petropoulou
Monte-Carlo Applications for Partially Polarized Inverse External-Compton Scattering (MAPPIES)
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L. Dreyer
Modeling the Multi-wavelength Polarization and Spectral Energy Distributions of Blazars
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H. Schutte
Long-term optical spectropolarimetric behaviour of a BLL and FSRQ during low states
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J. Barnard
Investigating the temporal behaviour of simulated multi-wavelength blazar variability for coloured noise variations.
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H. Thiersen
Multi-wavelength Study of blazars observed at redshift z >~1 by H.E.S.S.
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O. Chibueze
Multi-wavelength Study of Radio Galaxies in MeerKAT fields
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D. Phuravhathu
Estimation of orbital inclination angle for compact binary mergers
L. Mazwi, S. Razzaque and L. Nyadzani
Binaries
Non-transient gamma-ray binaries: current status and perspectives
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D. Malyshev
Long term behaviour of the circumstellar disc in the gamma-ray binary system PSR B1259-63/LS 2883
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B. van Soelen
Constraining the orbital solution of the gamma-ray binary HESS J0632+057
N. Matchett, B. van Soelen and R.O. Gray
The long-term Be disc structural behaviour of the newly-discovered Be X-ray binary, MAXI J0903-531
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I. Monageng
Circinus X-1, the 34 day daily monitoring campaign with MeerKAT
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K. Gasealahwe
Observations of the Stellar Mass Black Hole Cyg X-1 with the Imaging X-ray Polarimetry Explorer IXPE
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N.R. Cavero
Transient Supersoft X-ray Binaries observed with ASTROSAT and SALT
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P. Charles
Binaries/Pulsars
Broadband Spectral Modelling of the Galactic Globular Cluster 47 Tucanae
H. Davids, C. Venter, M. Backes, A.K. Harding and A. Kundu
Multi-zone modelling of the rapidly expanding, young pulsar wind nebula Kes 75
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C. Venter
Constraining the multipolar magnetic field of millisecond pulsar PSR J0030+0451 via NICER X-ray light curve fitting
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A. Kundu
Discovery of a Second AR Sco-like White Dwarf Pulsar
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D. Buckley
Modelling the Multi-Wavelength Non-thermal Emission of AR Sco.
L. Du Plessis, C. Venter, A.K. Harding and Z. Wadiasingh
Very-High-Energy Emission from Pulsars
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A.K. Harding
SNRs/Multi-Messenger
Gamma-ray emission from nova shocks expanding in the red giant wind: Interpretation of the 2021 outburst of the recurrent nova RS Ophiuchi
Teenage Supernova Remnants-can they be PeVatrons?
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I. Sushch
Particle Acceleration at Reflected Shocks in Supernovae Remnants
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J.F. Le Roux
Multi-frequency probes of 2HDM+S dark matter
Geodesics on approximately analytic spacetimes
J. Tarrant and G. Beck
Agn iii
Numerical Perspective on Interplay of Shocks, Turbulence and non-thermal emission processes in AGN jets.
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B. Vaidya
Exploring radio morphologies of AGN jets with hybrid fluid-particle simulations
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I. van der Westhuizen
Particle acceleration and inverse Compton emission from shear boundary layers in relativistic jets
T.B. Chand and M. Böttcher
1E 0502-667: An AGN without narrow lines?
H. Winkler, T. Kadiaka and F. van Wyk
MeerKAT-discovered AGN radio shock and large-scale relic emission
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I. Magolego
The variety of extreme blazars in the AstroSat view
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P. Goswami
Effect of AGN on the morphological properties of their host galaxies in the local Universe
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T. Getachew
Extreme Universe
Exploring the Extreme Universe in the Fermi Era
D. Thompson
Extragalactic background light inhomogeneities
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H. Abdalla
Hot Spot and Plasmoid models for Sagittarius A* flares
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A. Dmytriiev
Pulse fitting and spectral analysis of short gamma-ray bursts and the magnetar giant flare, GRB200415A
D.J. Maheso and S. Razzaque
Shaken, not stirred: Test particles in binary black hole mergers
P. van der Merwe and M. Boettcher
Black Holes
The Event Horizon Telescope and the future of black hole imaging
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F. Roelofs
High angular resolution radio surveys of active galactic nuclei towards the SKA era
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R. Deane
Goal-Oriented Stacking for Selection of AGN Candidates Below the Radio Detection Threshold
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J. Smulders
Selecting strong gravitational lens candidates in SKA HI surveys
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C. Button
Correction method applied to MC simulated LST images affected by clouds
N. Zycucka, J. Sitarek, D. Sobczyńska, M. Pecimotika, D. Hrupec, D. Dominis Prester, L. Pavletić and S. Mićanović
Shocks and Particle Acceleration in Gamma-ray Emitting Novae
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B. Metzger
Posters
Physical inference from the temporal analysis of PKS 1510-089 during the 2014 – 2015 multi-wavelength flaring events
T.S.S. Mbonani, B. van Soelen and R. Britto
Characterising the KL4040 sCMOS camera for use on the Boyden 1.5m Telescope
W. Smit, H. van Heerden and B. van Soelen
A search for gamma-ray emission from a sample of highly magnetised white dwarfs using Fermi-LAT data
S.T. Madzime and P. Meintjes
SALT Spectropolarimetric Pipeline Comparisons
J. Cooper and B. van Soelen
Active galactic nuclei with strong helium lines
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T. Sitoe
Phase-resolved Spectral Analysis of Bright Gamma-ray Millisecond Pulsars
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H.M. Yassin
Gravitational Lensing Inthe Standard LambdaCMD Cosmology
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J.R. Jemal
Determining the Uncertainty of UAVs Transmission Propagation on Cross Calibration of Cherenkov Telescope Array.
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S. Shilunga