Our paper on the discovery of global shock deceleration and reflection in the supernova remnant RCW 103 has been accepted for publication in ApJ. (arxiv link)
We found that X-ray rims and knots largely changed their speeds and directions of motion in this 20 years, although the age of the remnant is thought to be greater than 4 kyr. If true, this remnant will be an ideal target to study the physics of shock reflection.
Very recent shock reflection in the supernova remnant RCW 103 ?
Astrophysical Research Works of Hiromasa Suzuki 