314 citations · 4.9k across the 151 of their papers we have counts for
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X-ray polarization of the magnetar 1E 1841-045
Rachael Stewart, George A. Younes, Alice K. Harding +15
We report on IXPE and NuSTAR observations beginning forty days after the 2024 outburst onset of magnetar 1E 1841-045, marking the first IXPE observation of a magnetar in an enhance…
Detection of X-ray Emission from a Bright Long-Period Radio Transient
Ziteng Wang, Nanda Rea, Tong Bao +46
Recently, a class of long-period radio transients (LPTs) has been discovered, exhibiting emission on timescales thousands of times longer than radio pulsars. Several models had bee…
Search for Extended GeV Sources in the Inner Galactic Plane
S. Abdollahi, F. Acero, A. Acharyya +108
The recent detection of extended -ray emission around middle-aged pulsars is interpreted as inverse-Compton scattering of ambient photons by electron-positron pairs escaping the…
Revisiting the Intrabinary Shock Model for Millisecond Pulsar Binaries: Radiative Losses and Long-Term Variability
Jaegeun Park, Chanho Kim, Hongjun An +1
Spectrally hard X-ray emission with double-peak light curves (LCs) and orbitally modulated gamma rays have been observed in some millisecond pulsar binaries, phenomena attributed t…
Extragalactic Magnetar Giant Flares: Population Implications, Rates and Prospects for Gamma-Rays, Gravitational Waves and Neutrinos
Paz Beniamini, Zorawar Wadiasingh, Aaron Trigg +5
Magnetar Giant Flares (MGFs) are the most energetic non-catastrophic transients known to originate from stellar objects. The first discovered events were nearby. In recent years, s…
Signatures of magnetic flux expulsion from neutron star cores
S. K. Lander, K. N. Gourgouliatos, Z. Wadiasingh +1
Shortly after a neutron star is born, the protons in its core begin to form a superconductor. In terrestrial materials, the hallmark of superconductivity is an associated expulsion…
Extragalactic Magnetar Giant Flare GRB 231115A: Insights from Fermi/GBM Observations
Aaron C. Trigg, Rachael Stewart, Alex Van Kooten +22
We present the detection and analysis of GRB 231115A, a candidate extragalactic magnetar giant flare (MGF) observed by Fermi/GBM and localized by INTEGRAL to the starburst galaxy M…
Towards Modelling AR Sco: Generalised Particle Dynamics and Strong Radiation-Reaction Regimes
L. Du Plessis, C. Venter, A. K. Harding +3
Numerical simulations of relativistic plasmas have become more feasible, popular, and crucial for various astrophysical sources with the availability of computational resources. Th…
Beyond the Rotational Deathline: Radio Emission from Ultra-long Period Magnetars
A. J. Cooper, Z. Wadiasingh
Motivated by the recent detection of ultra-long period radio transients, we investigate new models of coherent radio emission via low-altitude electron-positron pair production in…
The role of magnetar transient activity in time-domain and multimessenger astronomy
Michela Negro, George Younes, Zorawar Wadiasingh +3
Time-domain and multimessenger astronomy (TDAMM) involves the study of transient and time-variable phenomena across various wavelengths and messengers. The Astro2020 Decadal Survey…
Rapid spin changes around a magnetar fast radio burst
Chin-Ping Hu, Takuto Narita, Teruaki Enoto +12
Magnetars are neutron stars with extremely high magnetic fields that exhibit various X-ray phenomena such as sporadic sub-second bursts, long-term persistent flux enhancements, and…
Modeling X-ray and gamma-ray emission from redback pulsar binaries
Minju Sim, Hongjun An, Zorawar Wadiasingh
We investigated the multiband emission from the pulsar binaries XSS J12270-4859, PSR J2039-5617, and PSR J2339-0533, which exhibit orbital modulation in the X-ray and gamma-ray ban…
First detection of polarization in X-rays for PSR B0540-69 and its nebula
Fei Xie, Josephine Wong, Fabio La Monaca +100
We report on X-ray polarization measurements of the extra-galactic Crab-like PSR B0540-69 and its Pulsar Wind Nebula (PWN) in the Large Magellanic Cloud (LMC), using a ~850 ks Imag…