We estimate the bispectrum of the Very Small Array data from the compact and extended configuration observations released in 2002 December, and compare our...

A method is presented to estimate the influence of the atmospheric turbulence and the telescope on the mean power spectra of the granulation brightness...

We use our most recent training set for the RICO code to estimate the impact of recombination uncertainties on the posterior probability distributions which...

Context. Details of the magnetic field in the quiet-Sun chromosphere are key to our understanding of essential aspects of the solar atmosphere. However, the...

A properly calibrated longitudinal magnetograph is an instrument that measures circular polarization and gives an estimation of the magnetic flux density in...

Digital tools are increasingly used in cultural astronomy, so that it is now more important than ever to assess their precision and reliability, and to identify...

Context: In general, studies focused on the Milky Way's structure show a range of values when deriving different Galactic parameters, such as radial...

We estimated the Galactic model parameters for a set of 36 high-latitude fields included in the currently available Data Release 5 (DR 5) of the Sloan Digital...

We present a method to determine nitrogen abundance ratios with respect to iron ([N/Fe]) from molecular CN-band features observed in low-resolution (R ∼ 2000)...