Compressed sensing for next generation instruments
This document discusses the possibility of using compressed sensing techniques for measuring 2D spectro-polarimetric information using only one etalon and a...
Conceptual Design of a two-degree field corrector and ADC for prime focus at the 4.2 m WHT
We present a conceptual optical design for a new refractive corrector for the prime focus of the 4.2 m William Herschel Telescope, optimised to allow wide-field...
Correction of the dome seeing contribution from generalized-SCIDAR data using evenness properties with Fourier analysis
Generalized-Scintillation Detection and Ranging (g-SCIDAR) has proven to be the most reliable and efficient technique for obtaining the vertical structure of...
COSMOSOMAS: a circular scanning instrument to map the sky at centimetric wavelengths
We describe the first instrument of a cosmic microwave background experiment for mapping cosmological structures on medium angular scales (the COSMOSOMAS...
Data Reduction Pipeline for EMIR, the Near-IR Multi-Object Spectrograph for GTC
EMIR (Balcells et al. 2000) is a near-infrared wide-field camera and multi-object spectrograph being built for the GTC. The Data Reduction Pipeline (DRP) will...
Data treatment towards the ELT age. The ESPRESSO case
Several ambitious scientific projects are currently pushing the limits of astrophysical spectroscopy, in terms of wavelength accuracy and long-term stability...
Detecting photons with orbital angular momentum in extended astronomical objects: application to solar observations
Context. The orbital angular momentum (OAM) of the photon is a property of light from astronomical objects that has not yet been measured. We propose a method...
Diagnostics for spectropolarimetry and magnetography
An assessment on the capabilities of modern spectropolarimeters and magnetographs is in order since most of our astrophysical results rely upon the accuracy of...
Differential atmospheric refraction in integral-field spectroscopy: Effects and correction. Atmospheric refraction in IFS
The basic concepts for determining the effect of differential atmospheric refraction on integral-field (two-dimensional) spectroscopic observations are...