To study the extended atmosphere of evolved stars such as Mira-type variables, spectropolarimetry is an innovative tool. For many kinds of stars, it has been...

Using the k-means cluster analysis algorithm, we carry out an unsupervised classification of all galaxy spectra in the seventh and final Sloan Digital Sky...

About half of the stars in our Galaxy are born in binary systems meaning that their evolution might be affected by the presence of a companion. Many aspects of...

Binarity and mass transfer appear to play a key role in the shaping and, most likely, in the formation of planetary nebulae (PNe), thereby explaining the large...

In his public talk, Prof. Narayan will summarize our knowledge of Black Holes in the universe. He will describe how Black Holes are discovered, how their...

CALIFA is the largest IFS survey ever performed up to date. Recently started, it will observe ~600 galaxies in the Local Universe with PPAK at the 3.5m of the...

Cosmic dust is an elusive component of the interstellar medium (ISM) because it is difficult to be observed. Despite the dust is a key ingredient in the...

Among the over 450 known exoplanets, the planets that transit their central star stand out, due to the wealth of information that can be gained about both...

Direct imaging of wide planetary mass companions provide a unique opportunity to fully characterize their spectroscopic and photometric properties. They share...