Two-colour photometry of the binary planetary nebula nuclei UU Sagitte and V 477 Lyrae : oversized secondaries in post-common-envelope binaries

@inproceedings{AfsarTwocolourPO,
  title={Two-colour photometry of the binary planetary nebula nuclei UU Sagitte and V 477 Lyrae : oversized secondaries in post-common-envelope binaries},
  author={M. Mehdi Afsar and C. İbanoǧlu}
}
We present new V– and R–passband CCD photometry of UU Sge and V477 Lyr, the eclipsing binary nuclei of the planetary nebulae Abell 63 and Abell 46, respectively. We have performed a simultaneous analysis of VR light– curves and estimated the effective temperatures for the primary and secondary stars to be 78 000 ± 3000 and 6136 ± 240 K for UU Sge, 49 500… CONTINUE READING