The Observatorio Astronómico Nacional at San Pedro Mártir is located at 31°02'40''N and 115°28'00''W on the summit of the Sierra San Pedro Mártir on the Baja...
Solar polarimetry in the K I D2 line : A novel possibility for a stratospheric balloon
Of the two solar lines, K I D1 and D2, almost all attention so far has been devoted to the D1 line, as D2 is severely affected by an O2 atmospheric band. This...
Solar Site Survey for the Advanced Technology Solar Telescope. I. Analysis of the Seeing Data
The site survey for the Advanced Technology Solar Telescope concluded recently after more than 2 years of data gathering and analysis. Six locations, including...
Statistical structure of the atmospheric optical turbulence at Teide Observatory from recalibrated generalized SCIDAR data
The characterization of the optical turbulence structure at an astronomical site requires a proper data base of the refractive-index structure constant, ?. Our...
Stray-light measurements at the Observatorio del Teide
A new procedure to separate the instrumental and atmospheric components of stray light is presented. It is based on the dependence of the aureole's atmospheric...
This article reviews the situation for robotization of telescopes and instruments at the Antarctic station Concordia on Dome C. A brain-storming meeting was...
The CARMENES search for exoplanets around M dwarfs. Telluric absorption corrected high S/N optical and near-infrared template spectra of 382 M dwarf stars
Light from celestial objects interacts with the molecules of the Earth's atmosphere, resulting in the production of telluric absorption lines in ground-based...
The effects of seeing on the parameters of the Sèrsic profile are studied in an analytical form using a Gaussian point spread function. The surface brightness...