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EC 10246-2707: a new eclipsing sdB + M dwarf binary⋆
(OUP, 2013)
We announce the discovery of a new eclipsing hot subdwarf B + M dwarf binary,
EC 10246-2707, and present multi-colour photometric and spectroscopic observations
of this system. Similar to other HW Vir-type binaries, the ...
Periodic variations in the O-C diagrams of five pulsation frequencies of the DB white dwarf EC 20058-5234
(American Physical Society, 2013)
Variations in the pulsation arrival time of five independent pulsation frequencies of the DB white dwarf
EC 20058−5234 individually imitate the effects of reflex motion induced by a planet or companion but are
inconsistent ...
The ongoing pursuit of R Coronae Borealis stars: the ASAS-3 survey strikes again
(EDP Sciences, 2013)
CONTEXT: R Coronae Borealis stars( RCBs) are rare, hydrogen-deficient, carbon rich super giant variable stars that are likely the evolved merger products of pairs of CO and He white dwarfs. Only 55 RCB stars have been found ...
Spectroscopy of the variable K-dwarf UNSW-V-760: is it a pre-main-sequence pulsator?
(Oxford University Press, 2013)
The star UNSW-V-760 is a known variable, showing both flares and two non-sinusoidal
periodicities. Availability of high signal-to-noise spectra reported in this paper has enabled
a revision of the spectral type of this ...