We report the discovery and early outburst evolution of the new Galactic magnetar EP J223759.5+531421, detected by the Einstein Probe Wide-field X-ray Telescope on 2026 June 28. Follow-up observations with Einstein Probe, XMM--Newton, NuSTAR, SVOM, and IXPE revealed coherent X-ray pulsations at P ~ 6s and an average pe...
N. Rea, F. Zelati, A. Borghese et al.· 0 citations
Gamma-ray bursts (GRBs) have served as testbeds for high-energy astrophysical phenomena since their discovery over 50 years ago. GRB detections reveal diverse properties across events, complicating efforts to constrain their emission mechanisms, magnetic fields, jet structures, and compositions. Spectropolarimetry is a...
Dhruv S. Bal, Nikita S. Khatiya, Philippe Laurent et al.· 0 citations
THESEUS is a proposed ESA M-class mission primarily designed for high-redshift gamma-ray burst studies, but its wide-field survey strategy and multi-instrument payload also offer significant opportunities for time-domain investigations of Galactic young stellar objects (YSOs). We assess the mission’s potential for YSO...
Á. Juhász, Nóra Varga, Péter Ábrahám et al.· Particles· 0 citations
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