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Paper: Massive Binary Mergers: A Unique Scenario for the sgB[e] Phenomenon?
Volume: 355, Stars With the B[e] Phenomenon
Page: 259
Authors: Podsiadlowski, Ph.; Morris, T.S.; Ivanova, N.
Abstract: At least 10% of all massive stars are expected to merge with a binary companion during their evolution, producing an initially rapidly rotating merged object. These merger products are excellent candidates for B[e] supergiants. In this review we summarize the different types of mergers and show that the merger rate is compatible with the B[e] supergiant formation rate. We then apply the merger paradigm to various observed systems that have been suspected or proposed to be merged systems: the progenitor of SN 1987A, Sheridan 25, the B[e] supergiant R4 and η Carinae.
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