564 citations
- National Academy of Sciences of UkraineUA35 papers
- Instituto de Astrofísica de CanariasES19 papers
- Special Astrophysical ObservatoryRU13 papers
- University of HertfordshireGB12 papers
- Heidelberg UniversityDE11 papers
- University of VirginiaUS9 papers
- Universidad de La LagunaES8 papers
- Centro de AstrobiologíaES6 papers
- Leibniz Institute for Astrophysics PotsdamDE6 papers
- Taras Shevchenko National University of KyivUA6 papers
- University of CambridgeGB6 papers
- University of GöttingenDE6 papers
4 papers · 1 filter
Lithium abundance in atmospheres of F- and G-type supergiants and bright giants
Leonid S. Lyubimkov, David L. Lambert, Bogdan M. Kaminsky +3
We present a non-local thermodynamic equilibrium abundance analysis of the resonance doublet Li I at 6707.8 A for 55 Galactic F and G supergiants and bright giants. The derived lit…
Atmosphere dynamics of the active region NOAA 11024
N. N. Kondrashova, M. N. Pasechnik, S. N. Chornogor +1
We present results of the study of chromospheric and photospheric line-of-sight velocity fields in the young active region NOAA 11024. Multi-layer, multi-wavelength observational d…
Evolution of solar magnetic tubes and its manifestation in Stokes parameters
V. A. Sheminova, A. S. Gadun
Basic scenarios and mechanisms for the formation and decay of small-scale magnetic elements and their manifestation in synthesized Stokes profiles of the Fe I 15648.5 A infrared li…
Oxygen and nitrogen abundances of HII regions in six spiral galaxies
Alexander S. Gusev, Leonid S. Pilyugin, Firouz Sakhibov +3
Spectroscopic observations of 63 HII regions in six spiral galaxies (NGC 628, NGC 783, NGC 2336, NGC 6217, NGC 7331, and NGC 7678) were carried out with the 6-meter telescope (BTA)…