43 citations · 83 across the 4 of their papers we have counts for
3 papers · 1 filter
Magnetic fluxes of solar active regions of different magneto-morphological classes: I. Cyclic variations
Valentina I. Abramenko, Regina A. Suleymanova, Anastasija V. Zhukova
Data for 3046 solar active regions (ARs) observed since May 12, 1996 to December 27, 2021 were utilized to explore how the magnetic fluxes from ARs of different complexity follow t…
Copper abundance from Cu I and Cu II lines in metal-poor star spectra: NLTE vs LTE
S. A. Korotin, S. M. Andrievsky, A. V. Zhukova
We checked consistency between the copper abundance derived in six metal-poor stars using UV Cu II lines (which are assumed to form in LTE) and UV Cu I lines (treated in NLTE). Our…
Galactic evolution of Copper in the light of NLTE computations
S. Andrievsky, P. Bonifacio, E. Caffau +5
We have developed a model atom for Cu with which we perform statistical equilibrium computations that allow us to compute the line formation of Cu I lines in stellar atmospheres wi…