The experimental fiber-optic spectrograph FLEX being developed for the 4.2-m William Herschel Telescope (WHT) at Tenerife is briefly described and illustrated...
Fibre positioning algorithms for the WEAVE spectrograph
WEAVE is the next-generation wide-field optical spectroscopy facility for the William Herschel Telescope (WHT) in La Palma, Canary Islands, Spain. It is a multi...
Fibre positioning concept for the WEAVE spectrograph at the WHT
WEAVE is the next-generation wide-field optical spectroscopy facility for the William Herschel Telescope (WHT) in La Palma, Canary Islands, Spain. It is a multi...
Field test of the hybrid photodetector R9792U-40 on the MAGIC camera
The hybrid photodetector (HPD) R9792U-40 has very high peak quantum efficiency ($>50$% at 500 nm), excellent charge resolution and very low after-pulsing...
We report on the upgrade of the fiber link of FIES, the high-resolution echelle spectrograph at the Nordic Optical Telescope (NOT). In order to improve the...
Fighting for accretion: the origing of low states in cataclysmic variables
SW Sextantis stars are fundamental to understanding how cataclysmic variables evolve. Their maverick behavior and unexplained accumulation in the orbital period...
Filter Simulations for the SPICA MIRACLE Instrument in Combination with SAFARI
The Mid-Infra-Red Camera w/o LEns (MIRACLE) instrument is the proposed imaging camera for one of the the focal plane instruments on SPICA covering the...