197 citations · 1.2k across the 24 of their papers we have counts for
24 papers
First detailed study of two eccentric eclipsing binaries: TYC 5378-1590-1 and TYC 8378-252-1
P. Zasche, D. Sürgit, A. Erdem +2
Aims: The analysis of combined photometry and spectroscopy of eccentric eclipsing binary systems facilitates the derivation of precise values for the parameters of the component st…
South African night sky brightness during high aerosol epochs
Hartmut Winkler, Francois van Wyk, Fred Marang
Sky conditions in the remote, dry north-western interior of South Africa are now the subject of considerable interest in view of the imminent construction of numerous solar power p…
Optical turbulence characterization at the SAAO Sutherland site
Laure Catala, Steven M. Crawford, David A. H. Buckley +7
We present results from the first year of a campaign to characterize and monitor the optical turbulence profile at the SAAO Sutherland observing station in South Africa. A MASS-DIM…
Recurrent dust formation by WR 48a on a 30-year timescale
Peredur M. Williams, Karel A. van der Hucht, Francois van Wyk +4
We present infrared photometry of the WC8 Wolf-Rayet system WR 48a observed with telescopes at ESO, the SAAO and the AAT between 1982 and 2011 which show a slow decline in dust emi…
Post-AGB stars with hot circumstellar dust: binarity of the low-amplitude pulsators
Hans Van Winckel, Tom Lloyd Evans, Maryline Briquet +28
While the first binary post-AGB stars were serendipitously discovered, the distinct characteristics of their Spectral Energy Distribution (SED) allowed us to launch a more systemat…
Light-curves of symbiotic stars in massive photometric surveys I: D-type systems
M. Gromadzki, J. Mikolajewska, P. Whitelock +1
ASAS, MACHO, OGLE and SAAO JHKL light curves of 13 stars, that have at some time been classified as D-type symbiotics, are analysed. Most of the near-IR light-curves that have been…