A test of the starspot hypothesis for W-type W Ursae Majoris light curves

Details A test of the starspot hypothesis for W-type W Ursae Majoris light curves A test of the starspot hypothesis for W-type W Ursae Majoris light curves

Dec 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...383..330l&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 383, Dec. 10, 1991, p. 330-335. Research supported by NSF.

Other

9

Binary Stars, Light Curve, Starspots, Barotropism, Hot Stars, Photosphere, Stellar Models

Scientific paper

A widely accepted hypothesis for the explanation of W-type W Ursae Majoris light curves depends on a distribution of cool starspots on the larger component, together with an approximately isothermal photosphere. This hypothesis has not heretofore been subjected to a simulation test. This paper reports a test with a total of 89 spots on the larger component. Both the theoretical V light curve and the B - V color have been compared with observational data for W Ursae Majoris. The discrepancies between theory and observation are much larger than for the alternative hot secondary model.

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