activity
20002020
most citedLong-term eclipse timing of white dwarf binaries: an observational hint of a magnetic mechanism at work

58 citations · 393 across the 13 of their papers we have counts for

collaborators

13 papers

astro-ph.SR2020★ 6 cited

A spectroscopic analysis of the eclipsing nova-like EC21178-5417 -- discovery of spiral density structures

Z. N. Khangale, P. A. Woudt, S. B. Potter +3

We present phase-resolved optical spectroscopy of the eclipsing nova-like cataclysmic variable EC21178-5417 obtained between 2002 and 2013. The average spectrum of EC21178-5417 sho…

astro-ph.SR2017★ 26 cited

WIRED for EC: New White Dwarfs with Infrared Excesses and New Classification Schemes from the Edinburgh-Cape Blue Object Survey

E. Dennihy, J. C. Clemens, John H. Debes +4

We present a simple method for identifying candidate white dwarf systems with dusty exoplanetary debris based on a single temperature blackbody model fit to the infrared excess. We…

astro-ph.SR2016★ 58 cited

Long-term eclipse timing of white dwarf binaries: an observational hint of a magnetic mechanism at work

M. C. P. Bours, T. R. Marsh, S. G. Parsons +18

We present a long-term programme for timing the eclipses of white dwarfs in close binaries to measure apparent and/or real variations in their orbital periods. Our programme includ…

astro-ph.SR2012★ 39 cited

EC 10246-2707: a new eclipsing sdB + M dwarf binary

B. N. Barlow, D. Kilkenny, H. Drechsel +10

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. Sim…

astro-ph.SR2011

Helium abundances and the helium isotope anomaly of sdB stars

S. Geier, U. Heber, H. Edelmann +5

Helium abundances and atmospheric parameters have been determined from high resolution spectra for a new sample of 46 bright hot subdwarf B (sdB) stars. The helium abundances have…

astro-ph.SR2009★ 12 cited

The rapidly pulsating sdO star, SDSS J160043.6+074802.9

C. Rodríguez-López, A. E. Lynas-Gray, D. Kilkenny +7

A spectroscopic analysis of SDSS J160043.6+074802.9, a binary system containing a pulsating subdwarf-O (sdO) star with a late-type companion, yields Teff = 70 000 +/- 5000 K and lo…