The scattered debris of the Magellanic Stream

Abstract

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.

5 pages, 4 figures, accepted for publication in MNRAS

References in corpus (4)

• Are the Magellanic Clouds on their First Passage about the Milky Way?
• Is the SMC Bound to the LMC? The HST Proper Motion of the SMC
• The Northern HIPASS catalogue - Data presentation, completeness and reliability measures
• The Source of Ionization along the Magellanic Stream

Cited by in corpus (7)

• WALLABY -- An SKA Pathfinder HI Survey
• The COS/UVES Absorption Survey of the Magellanic Stream. III: Ionization, Total Mass, and Inflow Rate onto the Milky Way
• Relics of structure formation: extra-planar gas and high-velocity clouds around the Andromeda Galaxy
• The Magellanic Stream and Debris Clouds
• Revealing the Ionization Properties of the Magellanic Stream using Optical Emission
• Evidence of ram pressure stripping of WLM, a dwarf galaxy far away from any large host galaxy
• A Compact High Velocity Cloud near the Magellanic Stream: Metallicity and Small-Scale Structure