We present some results obtained from the synthesis of Stokes profiles in small-scale flux sheets with propagating MHD waves. To that aim, 2D flux sheets...

Most of the visible light coming from the Sun originates in the solar photosphere. Numerical simulations are a common tool to study the solar atmosphere...

On 20 August 2010 an energetic disturbance triggered damped large-amplitude longitudinal (LAL) oscillations in almost an entire filament. In the present work we...

On 20 August 2010 an energetic disturbance triggered large-amplitude longitudinal oscillations in a large fraction of a nearby filament. The triggering...

Recently we were able to retrieve the Earth's transmission spectrum through lunar eclipse observations. This spectrum showed that the depth of most molecular...

Available from the Minor Planet Center.

Determining the redshift of astronomical sources is fundamental for cosmological studies, since it allows deriving distances to the observer. However, the...

The MAGIC Observatory is one of the main instruments in the northern hemisphere for mea-suring gamma rays from celestial objects in the very high energy regime...

We review general observational properties of bars in galaxies, and relations between bars, their dynamics, and (circum)nuclear activity. We consider new...