The possible appearance of a second period in the WN 5 star EZ Canis Majoris

Details The possible appearance of a second period in the WN 5 star EZ Canis Majoris The possible appearance of a second period in the WN 5 star EZ Canis Majoris

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...178..153g&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 178, no. 1-2, May 1987, p. 153-158.

Astronomy and Astrophysics

Astrophysics

18

Variable Stars, Wolf-Rayet Stars, Astronomical Photometry, Fourier Analysis, Periodic Variations

Scientific paper

Previously published photometric data on EZ Canis Majoris are reanalyzed. It is shown by different techniques that a sine-wave type periodicity close to one third of the claimed period of P = 3d.766 may also be present in what was considered as peculiarities in the lightcurve. The data available do not allow to known if this second period is precisely equal or only close to one third of P nor if there is some dependence between the two. In any case, the mere possible existence of such a second period is an interesting fact in the discussion concerning the possible existence of non-radial pulsations in some WR stars.

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