EDIBLES survey. VI.

Interstellar absorption observed toward stellar targets changes slowly over long timescales, mainly due to the proper motion of the background target relative to the intervening...

针对恒星目标观测到的星际吸收（Interstellar absorption）现象，会在长时标尺度下缓慢演化，其主要成因为背景目标相对于居间星际介质的自行（proper motion）运动。