Long duration gamma-ray bursts (GRBs) originate from the core collapse of massive stars, but the identity of the central engine remains elusive. Prev

The Imaging X-Ray Polarimetry Explorer¹ (IXPE) is a NASA small explorer mission selected in early 2017. IXPE will be a pathfinder mission opening a new window on the x-ray sky by enabling polarimetry measurements on essentially all classes of the brightest cosmic x-ray sources. Launched on 2021 December 9, with a 2-year baseline mission, IXPE will perform a study of dozens of sources in its first year, with follow-on more detailed observations of selected targets in year two.

Astronomy & Astrophysics (A&A) is an international journal which publishes papers on all aspects of astronomy and astrophysics

Approximately 1/4–1/2 of short duration gamma-ray bursts (GRBs) are followed by variable X-ray emission lasting ∼100 s with a fluence comparable or e

Astronomy & Astrophysics (A&A) is an international journal which publishes papers on all aspects of astronomy and astrophysics