Title

Simultaneous light and radial velocity curve solutions for U Cephei

Authors

J. B. Rafert, Florida Institute of Technology
N. L. Markworth, Stephen F Austin State UniversityFollow

Document Type

Article

Publication Date

1991

Abstract

The light-curve synthesis approach of Wilson & Devinney has been used to solve simultaneously light and radial velocity curves of the Algol-type eclipsing binary star U Cephei. We have performed eight new differential corrections solutions using the photometric data of Markworth and the radial velocity data of Batten to obtain a consistent set of orbital and astrophysical parameters for the light and velocity curves of this famous system. We find U Cephei to be best modeled using the semidetached (mode 5) system geometry of the Wilson & Devinney program, with a primary rotating at about 5.2 times its synchronous rate, and have found absolute system parameters to be = 4.93 M0, M2 = 3.27 M0, Ri = 2.77 R0, and R2 = 5.22 RQ.

DOI

https://doi.org/10.1086/170357

Comments

Rafert, J. B., & Markworth, N. L. (1991). Simultaneous light and radial velocity curve solutions for U Cephei. The Astrophysical Journal, 377(1), 278-284. https://doi.org/10.1086/170357

http://adsabs.harvard.edu/doi/10.1086/170357

Repository Citation

Rafert, J. B. and Markworth, N. L., "Simultaneous light and radial velocity curve solutions for U Cephei" (1991). Faculty Publications. 3.
https://scholarworks.sfasu.edu/physicsandastronomy_facultypubs/3