Two-meter Twin Telescope (TTT). A new way of doing science
TTT (Two-meter Twin Telescope) installation is a network of four telescopes located at the Teide Observatory, in the island of Tenerife (Canary Islands, Spain)...
Twofitlines is a tool developed within IRAF, optimized to be used with data containing multiple spectra along the spatial axis of the detector. A given spectral...
Type 2 AGN in the Local Universe: Two New Invariances?
Starting from a sample of type-2 AGN, the effect of the large-scale environmental density (LSED, parametrized by the surface density) on the mass of central...
Ubiquitous Horizontal Magnetic Fields in the Quiet Solar Photosphere as Revealed by HINODE Meaurements
Measurements with the HINODE Spectro-Polarimeter (SP) of the quiet Sun allow characterization of the weak, mixed-polarity magnetic flux at the highest angular...