Brian Williams

XRISM catches a hypergiant's wind plume falling onto the pulsar GX 301-2

XRISM spectra show wind plasma from the hypergiant Wray 977 falling onto the pulsar GX 301-2 during an X-ray flare, a first for any compact object. The spectra back a cause astronomers had long inferred from orbital timing, though so far they cover a single observing window.