The possible biperiodicity of WR 40

Details The possible biperiodicity of WR 40 The possible biperiodicity of WR 40

May 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...231..100g&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 231, no. 1, May 1990, p. 100-104. Research supported by FNRS.

Astronomy and Astrophysics

Astrophysics

7

Beat Frequencies, Periodic Variations, Stellar Luminosity, Wolf-Rayet Stars, Power Spectra, Statistical Analysis, Stellar Winds

Scientific paper

Strong arguments are presented in favor of the simultaneous presence of two periodicities in the variability of the Wolf-Rayet star WR 40. The frequencies are nu(A) = 0.16/d and nu(B) = 0.40/d. Some uncertainties remain concerning the choice of the actual one-year alias. On the basis of a detailed statistical analysis, reliable evidence that the variability related to nu(B) could be coherent is also presented: this points out nu(B) as a possible fundamental frequency linked to the 'core' of WR 40. No firm conclusion could be drawn about nu(A), suggesting that it could be a recurrent quasi-periodicity or a second order periodicity (e.g., a beat frequency). The two frequencies are sometimes hidden by the white noise, or slightly correlated, random process that constitutes the third component of the variability of WR 40.

Affiliated with

Also associated with

No associations

Rating

The possible biperiodicity of WR 40 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The possible biperiodicity of WR 40, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The possible biperiodicity of WR 40 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-778884