Current estimates of the impact of close binary stars on the shaping and ejection of common envelopes and planetary nebulae include a number of systems for which little published data and/or no binary parameters exist in the literature. Fewer than ten of the approximately 45 currently catalogued binary central stars (CSs) have determined system parameters. With the current emphasis in planetary nebula research on determining the role of binarity in the planetary nebula process, and the importance of post common envelope systems in our understanding of many important astrophysical systems, it is imperative that we understand as well as possible the small number of detected binary systems. We present light and radial velocity curves for the close binary central star of the planetary nebula PHR J1510-6754. The system is an irradiated binary with a cool companion to the hot central star. We have used the Wilson-Devinney (W-D) code to place strong constraints on the physical parameters of the binary system.
American Astronomical Society Meeting Abstracts #221
- Pub Date:
- January 2013