Stellar clustering as induced by a supernova |
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Authors: | Ralph Baierlein Ed Schwing William Herbst |
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Institution: | 1. Department of Physics, Wesleyan University, Middletown, Connecticut 06457, USA;2. Van Vleck Observatory, Wesleyan University, Middletown, Connecticut 06457, USA |
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Abstract: | When the shock wave from a supernova expands, it sweeps up not only interstellar matter but also magnetic field. The field is greatly amplified by compression and will provide the dominant pressure during the cool radiative phase of an expanding supernova shell. We examine a hydromagnetic instability in this system (a form of the Parker instability) and find that it will concentrate gas at intervals of the order of parsecs. The length and time scales make the instability promising as an explanation of the stellar clustering that is seen in Canis Major R1. |
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