[en] Imaging and spectroscopy are presented of the classical R CrB star UW Cen obtained when the star was in a deep minimum. These show the presence of a faint reflection nebula, the inner parts of which display two sets of symmetrical 'jets' centered on the star. The possibilities of whether the nebular structure can be associated with last thermal pulse evolution, white dwarf merger, or the mechanism causing the characteristic R CrB minima are discussed.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Pollacco, D. L.; University Observatory, Saint Andrews, Scotland
Hill, P. W.; University Observatory, Saint Andrews, Scotland
Houziaux, Léo ; Université de Liège - ULiège > Services généraux (Faculté des sciences) > Relations académiques et scientifiques (Sciences)
Manfroid, Jean ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO)
Language :
English
Title :
Nebulae around R Coronae Borealis stars - Clues to their evolutionary status?
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