Flickering in AGB stars: probing the nature of accreting companions
Binary companions to asymptotic giant branch (AGB) stars are an important aspect of their evolution. Few AGB companions have been detected, and in most cases it...
FliPer: A global measure of power density to estimate surface gravities of main-sequence solar-like stars and red giants
Asteroseismology provides global stellar parameters such as masses, radii, or surface gravities using mean global seismic parameters and effective temperature...
FliPerClass: In search of solar-like pulsators among TESS targets
The NASA Transiting Exoplanet Survey Satellite (TESS) is about to provide full-frame images of almost the entire sky. The amount of stellar data to be analysed...
Flow and magnetic field properties in the trailing sunspots of active region NOAA 12396
Improved measurements of the photospheric and chromospheric three-dimensional magnetic and flow fields are crucial for a precise determination of the origin and...
There is argument as to the extent to which there has been an increase over the past few decades in the frequency of the extremes of climatic parameters, such...
Fluid description of multi-component solar partially ionized plasma
We derive self-consistent formalism for the description of multi-component partially ionized solar plasma, by means of the coupled equations for the charged and...
A study of [Fe Ii] lines at various positions within the H Ii regions M42 and M43 is presented. The relative intensities of selected optical [Fe Ii] lines are...