The one-point probability distribution function (PDF) of the matter density field in the universe is a fundamental property that plays an essential role in...

We report the results of a systematic study on the spatial variation of the electron density in a selected group of bright giant H II complexes in the galaxies...

Context. H II regions in the arms of spiral galaxies are indicators of recent star-forming processes. They may have been caused by the passage of the density...

We propose the use of angular fluctuations in the galaxy redshift field as a new way to extract cosmological information in the Universe. This new probe $\delta...

Exoplanets smaller than Neptune are common around red dwarf stars (M dwarfs), with those that transit their host star constituting the bulk of known temperate...

Aims: Most hot Jupiters are expected to spiral in toward their host stars because the angular momentum of the orbital motion is transferred to the stellar spin...

Photospheric waves in sunspots moving radially outward at speeds faster than the characteristic wave velocities have been recently detected. It has been...

The first high spectral resolution and white-light images obtained at the THEMIS telescope with the Italian Panoramic Monochromator (IPM), are analyzed to study...

By integrating the differential equation system of the single-body meteor theory which describes meteor flight in the atmosphere, we show that the population...