We analyze the propagation of waves in sunspots from the photosphere to the chromosphere using time series of co-spatial Ca II H intensity spectra (including its line blends) and polarimetric spectra of Si I λ10,827 and the He I λ10,830 multiplet. From the Doppler shifts of these lines we retrieve the variation of the velocity along the line of

A lunar eclipse offers a unique opportunity to investigate the terrestrial atmosphere. A recent work (Pallé et al. 2009) has published the Earth’s transmission spectrum from 0.36 to 2.40 μm obtained during the partial lunar eclipse of August 16th 2008. We have set out to interpret the measured spectrum, and assess to what extent the conclusions can

Approximately half the baryons in the local Universe are thought to reside in the warm-hot intergalactic medium (WHIM), i.e. diffuse gas with temperatures in the range 105 T 107K. Emission lines from metals in the UV band are excellent tracers of the cooler fraction of this gas, with T ~103photons-1cm-2sr-1) comes from relatively dense (ρ >

Not Available

Aims: We performed a comprehensive analysis of a sample of 20 starburst galaxies that show a substantial population of very young massive stars, most of them classified as Wolf-Rayet galaxies. Methods: In this paper, the last in the series, we analyze the global properties of our galaxy sample using multiwavelength data extracted from our own

Not Available