000002560 001__ 2560
000002560 005__ 20160701171707.0
000002560 037__ $$aASTROimport-717
000002560 100__ $$aZijlstra, A.
000002560 245__ $$aThe radio evolution of helium-flash stars
000002560 260__ $$c2008
000002560 520__ $$aStars reach the white dwarf phase shortly after the ejection of a planetary nebula, and the termination of hydrogen burning. Around 20% of these stars experience a final helium flash after the cessation of hydrogen burning. In spite of being such a common event, only three cases have ever been observed, largely because of the speed of the subsequent evolution. Because of high extinction, this evolution can only be followed at radio wavelengths. Earlier radio data has shown the onset of circumstellar ionization around Sakurai's Object and V605 Aql, and a compact radio source in CK Vul. We propose new cm observations of all three objects, which will yield the evolution of the temperature of the central stars. This will be used to test current models of explosive helium burning which predict very rapid evolution. 
000002560 700__ $$a Hajduk, M.
000002560 700__ $$a van Hoof, P.
000002560 773__ $$pATNF Proposal$$y2008
000002560 85642 $$ahttp://esoads.eso.org/abs/2008atnf.prop.1807Z
000002560 905__ $$apublished in
000002560 980__ $$aNONREF