The PLATO 2.0 space mission (PLAnetary Transits and Oscillation of stars) was selected by the ESA Science Programme in February 2014, as the M3 mission to be...
The plenoptic camera as a wavefront sensor for the European Solar Telescope (EST)
The plenoptic wavefront sensor combines measurements at pupil and image planes in order to obtain wavefront information from different points of view...
The polarization of the Hα line in the quiet solar chromosphere
One-dimensional radiative transfer (RT) calculations suggested that the scattering polarization profiles of the Hα line are very sensitive to the strength and...
The Polarization Optics for the European Solar Telescope
EST, the European Solar Telescope, is a 4-m class solar telescope, which will be located at the Canary Islands. It is currently in the conceptual design phase...
The polarization optics for the European Solar Telescope (EST)
EST (European Solar Telescope) is a 4-m class solar telescope, which is currently in the conceptual design phase. EST will be located at the Canary Islands and...
The polishing of WEAVE spectrograph collimator mirror
WEAVE is the new wide field multi-object and integral field survey facility for the prime focus of the 4.2 m William Herschel Telescope. It is located at the...
The population of Planetary Nebulae in the Milky Way
Extensive surveys of the Milky Way have provided a global view of the population of planetary nebulae in the Milky Way. Their chemical, dynamical, and...
The Possible Origins of the VR Magnification Ratios of Q0957+561AB
We present VR magnification ratios of the double quasar Q0957+561AB, which are inferred from frames taken with the 2.56m Nordic Optical Telescope. From two...