Description
Extra-galactic Fast X-ray Transients (FXTs) are X-ray flashes lasting minutes to hours in the soft X-ray regime (i.e., 0.3-10 keV). Their nature is unclear, but the most remarkable scenarios related to them are shock breakout supernovae, tidal disruption events involving white dwarf stars and intermediate massive black holes, binary neutron star mergers, and high-redshift gamma-ray bursts. From January 2024, the Einstein Probe (EP) satellite has revolutionized our understanding of this new population of X-ray transients. In this talk, I will examine one of the last well-sampled transients detected by EP called EP241021a, which shows unique properties such as rebrightening at optical and near-infrared wavelengths ~10 days after the trigger, and a late-time bump emission. Moreover, in addition to explaining its energetics and potential progenitors, I will talk about general statistics about the last year of Einstein Probe detection.
| Talk category | NOVA Network 3 |
|---|---|
| Preference for a talk or poster | Talk |
