Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 1 of 1
Full-Text Articles in Physical Sciences and Mathematics
H I Streamers Around M82 - Tidally Disrupted Outer Gas Disk, Min S. Yun, Paul T P Ho, K Y. Lo
H I Streamers Around M82 - Tidally Disrupted Outer Gas Disk, Min S. Yun, Paul T P Ho, K Y. Lo
Min S. Yun
Our new VLA observations of M82 reveals a triangular central concentration of neutral atomic gas and several more than about 10 kpc long tidal streamers originating from M82 itself. The coincidence of the beginning of the tidal streamer with the flaring of the optical disk as well as the smooth continuation of the disk velocity field into the H I streamer strongly suggest the tidal disruption of the disk of M82, contrary to the widely proposed scenario of tidal stripping and gas accretion from its neighbor M81. The velocity characteristics of H I within M82 are that of disk rotation …