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Mass Loss from the Progenitor of Kepler’s Supernova: Characteristics and Evolutionary Constraints

1988; Springer Nature (Netherlands); Linguagem: Inglês

10.1007/978-94-009-2941-8_52

2214-7985

R. Bandiera,

Spaceflight effects on biology

A scenario for the origin of Kepler's supernova remnant is presented. According to this scenario the progenitor was a massive runaway star, subject to strong mass loss. Due to the interaction of the wind with the interstellar medium, a bow shock has formed in the direction of the stellar motion. Using the available data on the remnant, various constraints on the progenitor's wind can be set. A search has been carried out, among classes of known runaway objects to determine the nature of the progenitor. Similarities have been found with runaway Wolf-Rayet stars; some of them are also surrounded by nebulae, similar to that surrounding Kepler's supernova progenitor. Also these nebulae, commonly interpreted as wind blown bubbles, could actually consist of matter collected on a bow shock.