Bow-shock induced star formation in the LMC?
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The structure of supergiant shells, in particular of LMC 4, is hard to explain with stochastic self-propagating star formation. A series of supergiant structures lies along the outer edge of the LMC and form a sequence increasing clockwise in age. We have considered the rotation of the LMC and its motion through the halo of the Milky Way and propose that these structures find their origin in star formation induced in the bow-shock formed at the leading edge of the LMC. Due to the rotation of the LMC these structures then move aside.
4 pages, LaTeX (epsf, l-aa), incl. 1 PostScript figure; Accepted by A&A (Letter to the Editor)
4 pages, LaTeX (epsf, l-aa), incl. 1 PostScript figure; Accepted by A&A (Letter to the Editor)