Article (Scientific journals)
Analysis of the photometric variability of WR40
Gosset, Eric; Vreux, Jean-Marie; Manfroid, Jean et al.
1989In Monthly Notices of the Royal Astronomical Society, 238, p. 97-113
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Keywords :
ASTRONOMICAL PHOTOMETRY; PERIODIC VARIATIONS; VARIABLE STARS; WOLF-RAYET STARS; AMPLITUDES; DATA REDUCTION; POWER SPECTRA; STELLAR PHYSICS
Abstract :
[en] New photometric data on the star WR40 are presented and, together with data already published, are analyzed in a detailed and homogeneous manner in order to investigate the variability of the star. Good evidence is presented for the existence of a periodicity P = 6.250 + or - 0.078 day with a semiamplitude of 0.010 mag in the Stromgren b filter. Only part of the 0.1 mag peak-to-peak variation of the star can be explained in this way and other interesting features of the variability are outlined. The physical origin of the periodicity is discussed.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Gosset, Eric ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe d'astrophysique des hautes énergies (GAPHE)
Vreux, Jean-Marie ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO)
Manfroid, Jean  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO)
Sterken, C.;  Brussel, Vrije Universiteit, Brussels, Belgium
Walker, E. N.
Haefner, R.
Language :
English
Title :
Analysis of the photometric variability of WR40
Publication date :
01 May 1989
Journal title :
Monthly Notices of the Royal Astronomical Society
ISSN :
0035-8711
eISSN :
1365-2966
Publisher :
Blackwell Publishing, Oxford, United Kingdom
Volume :
238
Pages :
97-113
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
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