Context. Thorium hollow cathode lamps (HCLs) are used as frequency calibrators for many high resolution astronomical spectrographs, some of which aim for...

We present a method to assess the plausibility of alternative mechanisms to explain the damping of magnetohydrodynamic transverse waves in solar coronal loops...

Context. Interpreting the Stokes profiles observed in quiet regions of the solar chromosphere is a challenging task. The Stokes Q and U profiles are dominated...

A new method of fitting tridimensional power spectra of solar oscillations is described and compared with a previous one whose use has been more common. The new...

The main objective of this work is to compositionally analyse the visible to near-infrared spectra of a total of six V-type candidates identified using the...

Two primitive near-Earth asteroids, (101955) Bennu and (162173) Ryugu, will be visited by a spacecraft with the aim of returning samples back to Earth. Since...

We present analytic formulae that approximate the evolution of stars for a wide range of mass M and metallicity Z. Stellar luminosity, radius and core mass are...

This document discusses the possibility of using compressed sensing techniques for measuring 2D spectro-polarimetric information using only one etalon and a...

We demonstrate, through numerical simulations with real data, the feasibility of using compressive sensing techniques for the acquisition of spectro...