4 papers
Nonlinear coupling between magnetar QPOs
Pantelis Pnigouras, Samuel K. Lander
The quasi-periodic oscillations (QPOs) observed in the tails of magnetar giant -ray flares have long been interpreted as normal oscillation modes of these stars. However, most…
Correlation of Burst Behaviour with Magnetar Age
Ozge Keskin, Samuel K. Lander, Ersin Gogus
We analyze a wide set of historical magnetar burst observations detected with five different instruments, calibrating these to the energy range of Fermi-GBM observations for consis…
Investigating the Recursive Short X-ray Burst Behavior of Magnetars Through Crustal Interactions
Ozge Keskin, Samuel K. Lander, Ersin Gogus
Energetic bursts from strongly magnetized neutron stars, known as magnetars, are typically detected in clusters. Once an active episode begins, anywhere from a few to thousands of…
Timing and Spectral Evolution of the Magnetar 1E 1841-045 in Outburst
G. Younes, S. K. Lander, M. G. Baring +19
We present the timing and spectral analyses of the NICER, NuSTAR, and IXPE observations of the magnetar 1E 1841-045 covering 82 days following its August 2024 bursting activity as…