The Magellanic Stream and Debris Clouds
Abstract
We present a study of the discrete clouds and filaments in the Magellanic Stream using a new high-resolution survey of neutral hydrogen (H I) conducted with the H75 array of the Australia Telescope Compact Array, complemented by single-dish data from the Parkes Galactic All-Sky Survey. From the individual and combined data sets, we have compiled a catalog of 251 clouds and listed their basic parameters, including a morphological description useful for identifying cloud interactions. We find an unexpectedly large number of head-tail clouds in the region. The implication for the formation mechanism and evolution is discussed. The filaments appear to originate entirely from the Small Magellanic Cloud and extend into the northern end of the Magellanic Bridge.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- September 2014
- DOI:
- 10.1088/0004-637X/792/1/43
- arXiv:
- arXiv:1407.0762
- Bibcode:
- 2014ApJ...792...43F
- Keywords:
-
- ISM: kinematics and dynamics;
- Magellanic Clouds;
- radio lines: ISM;
- Astrophysics - Astrophysics of Galaxies
- E-Print:
- Manuscript format, 40 pages, 17 figures, 2 tables. Accepted for publication in ApJ