Speaker
Description
Here we present the first report of pulsed emission at the spin period of the white dwarf in MeerKAT data, which is also the first report of pulsed emission at the spin period of the white dwarf in radio frequencies (L-band). Further support for the pulsar-like behaviour of AE Aqr is the detection of pulsed emission at the spin period of the white dwarf in AE Aqr in Fermi-LAT data. By isolating data sections that show emission above the 2 sigma level our periodic analysis reveal clear indications of pulsed emission at the spin period of the white dwarf and its associated first harmonic, which implies particle acceleration from both poles of the white dwarf. The emission detection in Fermi-LAT data mimic to a large extend the emission profiles detected in VHE gamma-ray observations made by two independent groups at Pothefstroom and Durham. Furthermore, Fermi-LAT data sections that were made simultaneous with optical flares show clear pulsed emission patterns at the spin period of the white dwarf similar to those reported in the late 1980’s. The results presented here confirm AE Aqr as a transient gamma-ray source with clear indications of spectral hardening during sections enhanced gamma-ray activity. It is also shown that AE Aqr may be detectable with CTA and a strategy is presented how detectable pulsed emission may be extracted from the data.
