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Observations of variable stars with the R Coronae Borealis phenomenon and other unique objects
Author(s) -
Rosenbush A. E.
Publication year - 1995
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.2103160406
Subject(s) - physics , astrophysics , supergiant , stars , photometry (optics) , brightness , variable star , astronomy , light curve , polarization (electrochemistry) , chemistry
The results of photometry and polarimetry of the R Coronae Borealis type stars and other interesting objects are given. The observation of the former objects are obtained at the light maximum or at a brightness lower by 2‐3 mag. The polarization of R CrB stars at light maximum has interstellar origin. The absolute magnitude of V 854 Cen is estimated to M s v w = −3 m , and for Y Mus it is M v > −3 m .7. ρ Cas has a variable polarization and is probably a giant ( M v ≅ 0 m ) rather than a supergiant. Many early stars in its surroundings are photometrically and polarimetrically variable. The protoplanetary star BD −0°3679 has a polarization with the Rayleigh component.