Abstract
Spectroscopic data of this blue subdwarf indicate that the primary eclipse is a transit rather than an occultation. We also find that the light contributed by the secondary is primarily due to a reflection effect and its intrinsic luminosity is very low compared to the primary. The primary most likely consists of a |$0.2 M_\odot$| degenerate helium core surrounded by a low mass envelope; its companion (|$0.04 M_\odot$|) is probably also degenerate, although it may be a faint main-sequence star. Possible evolutionary scenarios are discussed, with the conclusion that LB 3459 is an interesting example of common envelope evolution.
Full Text
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call