On the incidence of eclipsing Am binary systems in the SuperWASP survey
astro-ph.SR
/ Authors
B. Smalley, J. Southworth, O. I. Pintado, M. Gillon, D. L. Holdsworth, D. R. Anderson, S. C. C. Barros, A. Collier Cameron, L. Delrez, F. Faedi
and 11 more authors
C. A. Haswell, C. Hellier, K. Horne, E. Jehin, P. F. L. Maxted, A. J. Norton, D. Pollacco, I. Skillen, A. M. S. Smith, R. G. West, P. J. Wheatley
/ Abstract
The results of a search for eclipsing Am star binaries using photometry from the SuperWASP survey are presented. The light curves of 1742 Am stars fainter than V = 8.0 were analysed for the presences of eclipses. A total of 70 stars were found to exhibit eclipses, with 66 having sufficient observations to enable orbital periods to be determined and 28 of which are newly identified eclipsing systems. Also presented are spectroscopic orbits for 5 of the systems. The number of systems and the period distribution is found to be consistent with that identified in previous radial velocity surveys of `classical' Am stars.