Computed color indices and spectral shapes for individual stars are routinely compared with observations for essentially all spectral types, but absolute fluxes...
Concept of SPARC4: a simultaneous polarimeter and rapid camera in 4 bands
We present a summary of the concept design report of a new astronomical instrument: SPARC4, Simultaneous Polarimeter and Rapid Camera in 4 bands. SPARC4 will...
Concepts for Multi-wavelength Observations with the 1.5 m Solar Telescope GREGOR
The initial instrumentation of the 1.5 m solar telescope GREGOR on Tenerife will include a grating spectrograph with a spectro-polarimeter for the near infrared...
Concepts, laboratory, and telescope test results of the plenoptic camera as a wavefront sensor
The plenoptic camera has been proposed as an alternative wavefront sensor adequate for extended objects within the context of the design of the European Solar...
Conceptual design for the optomechanical systems of the New Robotic Telescope
The New Robotic Telescope (NRT) will be the largest fully robotic telescope in the world (4-m class). The primary mirror (M1) will be comprised of 18...
Conceptual design of a cryogenic pupil mechanism with continuous complex movements for HARMONI
In order to improve the signal-to-noise ratio of HARMONI (E-ELT first light visible and near-infrared integral field VIR spectrometer), a pupil mask has been...
Conceptual design of a fast-slewing mount for the New Robotic Telescope
The New Robotic Telescope is designed to conduct rapid target follow-up within 30 seconds of an `alert' from survey facilities. To achieve this will require a...