1 citations · 2 across the 3 of their papers we have counts for
3 papers
astro-ph.IM2011★ 1 cited
The SONG project and the prototype node at Tenerife
K. Uytterhoeven, P. L. Palle, F. Grundahl +10
SONG (Stellar Observations Network Group) is a global network of 1-m class robotic telescopes that is under development. The SONG prototype will shortly be operational at Observato…
astro-ph1998★ 1 cited
First estimate of the time delay in HE 1104-1805
Lutz Wisotzki, Olaf Wucknitz, Sebastian Lopez +1
We present first results from five years of spectrophotometric monitoring of the bright double QSO and gravitational lens HE 1104-1805. The quasar has varied considerably over this…
astro-ph1995
Monitoring of the Einstein Cross with the Nordic Optical Telscope
R. Oestensen, S. Refsdal, R. Stabell +26
We report results from five years of monitoring of the Einstein Cross (Q 2237+0305) with the Nordic Optical Telescope. The photometry, mainly in the R and I bands, has been perform…