10 research outputs found
The scattered debris of the Magellanic Stream
Searching the HI Parkes All-Sky Survey (HIPASS) and its northern extension,
we detected a population of very compact high-velocity clouds (HVCs) with
similar velocities in the Galactic standard-of-rest frame which appear to be
arranged in several filaments aligned with the nearby Magellanic Stream. A
comparison with published OVI/CaII absorption and HI emission line measurements
suggests that the HVCs are condensations within an extended and mainly ionised
component of the Magellanic Stream. They coincide in position with a faint gas
stream predicted in numerical simulations of the Magellanic Clouds by Gardiner
& Noguchi (1996). Consequently, the Magellanic Stream could be much more
extended than generally believed.Comment: 5 pages, 4 figures, accepted for publication in MNRA