Structure and kinematics of the ISM near WR 139статья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:The structure and kinematics of the ISM in an extended vicinity of the star WR 139 is analyzed using the results of original H alpha interferometric observations together with radio and infrared data. A CO cavity with a size of up to 40' has been detected around the star at velocities of V (LSR) similar to 2.5-10 km/s; the cavity is bounded to the North by a shell radiating in the optical. Ionized hydrogen emits at the systematic velocities V (LSR) similar to 6-14 km/s toward the CO cavity, and at V (LSR) a parts per thousand integral 4-11 km/s toward the shell. High-velocity motions of ionized hydrogen inside the cavity testify to the probable expansion of gas that has been swept out by the stellar wind of WR 139 at velocities of up to 60-80 km/s.