110 citations · 316 across the 7 of their papers we have counts for
7 papers
The quest for stable circumbinary companions to post-common envelope sdB eclipsing binaries Does the observational evidence support their existence?
D. Pulley, G. Faillace, D. Smith +2
Context. Period variations have been detected in a number of eclipsing close compact binary subdwarf B stars (sdBs) and these have often been interpreted as caused by circumbinary…
The eclipsing binary HS0705+6700 and the search for circumbinary objects
D. Pulley, G. Faillace, D. Smith +1
HS0705+6700 (also identified as V470 Cam) is a short period (2.3 h) post common envelope detached eclipsing sdB binary system which exhibits transit time variations (TTVs) of a cyc…
EL CVn-type binaries - Discovery of 17 helium white dwarf precursors in bright eclipsing binary star systems
P. F. L. Maxted, S. Bloemen, U. Heber +21
The star 1SWASP J024743.37-251549.2 was recently discovered to be a binary star in which an A-type dwarf star eclipses the remnant of a disrupted red giant star (WASP0247-25B). The…
Investigating the properties of the near contact binary system TW CrB
G. Faillace, C. Owen, D. Pulley +1
TW Coronae Borealis (TW CrB) is a binary system likely to be active showing evidence of starspots and a hotspot. We calculated a new ephemeris based on all available timings from 1…
Discovery of the Optical Transient of the Gamma Ray Burst 990308
Bradley E. Schaefer, J. A. Snyder, J. Hernandez +53
The optical transient of the faint Gamma Ray Burst 990308 was detected by the QUEST camera on the Venezuelan 1-m Schmidt telescope starting 3.28 hours after the burst. Our photomet…
The Secondary Star in Cataclysmic Variables and Low Mass X-ray Binaries
D. A. Smith, V. S. Dhillon
We critically re-examine the available data on the spectral types, masses and radii of the secondary stars in cataclysmic variables (CVs) and low-mass X-ray binaries (LMXBs), using…
The mass of the white dwarf in the old nova BT Mon
D. A. Smith, V. S. Dhillon, T. R. Marsh
We present spectrophotometry of the eclipsing old nova BT Mon (Nova Mon 1939). By detecting weak absorption features from the secondary star, we find its radial velocity semi-ampli…