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Nebulae around R Coronae Borealis stars - Clues to their evolutionary status?

Pollacco, D. L.; Hill, P. W.; Houziaux, Léo et al.

1991 • In Monthly Notices of the Royal Astronomical Society, 248, p. 1P-4

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Keywords :

R CORONAE BOREALIS STARS; REFLECTION NEBULAE; STELLAR EVOLUTION; STELLAR ATMOSPHERES; STELLAR LUMINOSITY; STELLAR SPECTROPHOTOMETRY

Abstract :

[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?

Publication date :

01 January 1991

Journal title :

Monthly Notices of the Royal Astronomical Society

ISSN :

0035-8711

eISSN :

1365-2966

Publisher :

Blackwell Publishing, Oxford, United Kingdom

Volume :

248

Pages :

1P-4P

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://cdsads.u-strasbg.fr/abs/1991MNRAS.248P...1P

Available on ORBi :

since 14 February 2010

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Bibliography

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