The use of a liquid crystal as an optical modulator for use with a resonant scattering spectrometer has been investigated. Preliminary data indicate that using...
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PublicationA liquid crystal modulator
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PublicationA microwave blackbody target for cosmic microwave background spectral measurements in the 10–20 GHz range
The Tenerife Microwave Spectrometer (TMS) is a ground-based radio-spectrometer that will take absolute measurements of the sky between 10–20 GHz. To ensure the...
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PublicationOn the acoustic cut-off frequency of the sun
Full solar disk observations of radial velocity, obtained with the IRIS network of resonant scattering spectrometers, are used to analyze the acoustic p-mode...
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PublicationOverview of the Instrumentation for the Dark Energy Spectroscopic Instrument
The Dark Energy Spectroscopic Instrument (DESI) embarked on an ambitious 5 yr survey in 2021 May to explore the nature of dark energy with spectroscopic...
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PublicationPreliminary performance of a 4-point resonance scattering experiment to access long-period global oscillations from space
The first data of a SOHO-GOLF type instrument are presented. The slopes of the solar sodium lines profiles D1 and D2 and their variations with the excursion of...
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PublicationSolar observations: Techniques and interpretation
This book includes four chapters devoted to techniques and interpretation of solar observations. The chapter on high spatial resolution techniques considers...
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PublicationSpectral Rotational Characterization of the Didymos System prior to the DART Impact
The smallest member of the Didymos binary near-Earth object system (Dimorphos) is the target of the DART/LICIACube mission, the first attempt to change the...
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PublicationStellar Atmospheric Parameters: The Four-Step Program and Gaia's Radial Velocity Spectrometer
The determination of atmospheric parameters is the first and most fundamental step in the analysis of a stellar spectrum. Current and forthcoming surveys...
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PublicationThe Robotic Multiobject Focal Plane System of the Dark Energy Spectroscopic Instrument (DESI)
A system of 5020 robotic fiber positioners was installed in 2019 on the Mayall Telescope, at Kitt Peak National Observatory. The robots automatically retarget...