This paper presents 2.2 micron maps of selected areas of the Galactic Plane, taken with the 1.5 m Sanchez-Magro telescope on the island of Tenerife. A model of...
Publicación2.2 micron stellar counts at the Galactic Plane
PublicaciónA high-resolution study of the structure of sunspot light bridges and abnormal granulation
Strong light bridges (SLBs) represent an abrupt change in the physical conditions of sunspot umbrae. They divide the umbra into separate units (fragments...
PublicaciónA possible nineteen-minute periodicity in the light curve of OJ 287
A periodic signal of high nominal significance (99.95 percent) is found in the light curve of OJ 287 in observations taken with the Prime Focus Camera Unit on...
PublicaciónA proposal for a low instrumental polarization coude telescope
A technique for obtaining an ideal two-mirror coude system with no instrumental polarization is described. A half-wave plate positioned between the two mirrors...
PublicaciónA proposal for a low instrumental polarization coude telescope. II. The German Gregory-Coude Telescope at the Observatorio del Teide.
We have put into practice the technique to minimize the instrumental polarization (IP) of coude telescopes proposed by Martinez Pillet & Sanchez Almeida (1991)...
PublicaciónA retrospective of the GREGOR solar telescope in scientific literature
In this review, we look back upon the literature, which had the GREGOR solar telescope project as its subject including science cases, telescope subsystems, and...
PublicaciónA search for solar-like oscillations in the stars of M67 with CCD ensemble photometry on a network of 4 M telescopes
Results are presented from a large observational project directed toward the detection of solar-like oscillations in an ensemble of open cluster stars. Seven...
PublicaciónAstronomical site evaluation in the visible and radio range : IAU technical workshop : proceedings of a workshop held at Cadi Ayyad University, Marrakech, Morocco, 13-17 November 2000
PublicaciónAstronomical site selection: on the use of satellite data for aerosol content monitoring
The main goal of this work is to analyse new approaches to the study of the properties of astronomical sites. In particular, satellite data measuring aerosols...