152 research outputs found
First ejection from the PSR B1259-63/LS 2883 high mass gamma-ray binary detected during the 2021-2024 binary cycle
LS 2883/PSR B1259-63 is a high mass, eccentric gamma-ray binary that has
previously been observed to eject X-ray emitting material. We report the
results of recent Chandra observations near binary apastron in which a new
X-ray emitting clump of matter was detected. The clump has a high projected
velocity of and hard X-ray spectrum, which fits an
absorbed power-law model with . Although clumps with similar
velocities and spectra were detected in some of the previous binary cycles, no
resolved clumps were seen near apastron in the preceding cycle of 2017-2021.Comment: RNAA
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