output
19922026
Showing 2024 · astro-ph.HEShow all

5 papers · 2 filters

astro-ph.HE2024

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…

astro-ph.HE2024★ 1 cited

Pulsed and Polarized X-ray Emission from Neutron Star Surfaces

Matthew G. Baring, Hoa Dinh Thi, George A. Younes +1

The intense magnetic fields of neutron stars naturally lead to strong anisotropy and polarization of radiation emanating from their surfaces, both being sensitive to the hot spot p…

astro-ph.HE2024★ 5 cited

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…

astro-ph.HE2024★ 4 cited

Concise Spectrotemporal Studies of Magnetar SGR J1935+2154 Bursts

Ozge Keskin, Ersin Gogus, Yuki Kaneko +6

SGR J1935+2154 has truly been the most prolific magnetar over the last decade: It has been entering into burst active episodes once every 1-2 years since its discovery in 2014, it…

astro-ph.HE2024★ 30 cited

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…