Browsing Researchers in Statistics and Population Studies by Subject "Binaries: close"

Now showing items 1-3 of 3

    • HE0230–4323: an unusual pulsating hot subdwarf star 

      Koen, Chris (Oxford University Press, 2007)
      HE 0230−4323 is a known binary, consisting of a subdwarf star and a companion which is not observable in the optical. Photometric measurements reported in this paper have shown it to be both a reflection-effect and a ...

    • JL 82: a slowly pulsating hot subdwarf star in a close binary system 

      Koen, Chris (Oxford University Press, 2009)
      JL 82 is a known binary, consisting of an sdB star and a companion which is not directly observable in the optical. Photometric measurements reported in this paper show it to variable with both the binary period (∼0.75 ...

    • Photometry of the magnetic white dwarf SDSS 121209.31+013627.7 

      Koen, Chris; Maxted, P.F.L. (Oxford University Press, 2006)
      The results of 27 h of time series photometry of SDSS 121209.31+013627.7 are presented. The binary period established from spectroscopy is confirmed and refined to 0.061 412 d (88.43 min). The photometric variations are ...