Abstract
SynopsisHelium-rich subdwarf B stars represent a small group of low-mass hot stars. A number of significant but unfamiliar absorption lines have been identified of heavy-metal ions, such as germanium, strontium, yttrium and zirconium. The abundances in the photosphere of theses element was estimated between 1000 and 10 000 times the solar. We calculate the collision-radiative data for the ions Sr+, Y2+ and Zr3+. Comparing with measured spectra we can determine these abundances. We compare the obtained results with the RMATRX and DARC methods.
Highlights
- The efficiency analysis of applying hydraulic fracturing of formation at AB1-2 facility of Potochnoye field E M Almukhametova, D I Fattakhov and A I Zakirov1
Röder et al This content was downloaded from IP address 84.64.104.19 on 12/01/2022 at 14:37
Synopsis Helium-rich subdwarf B stars represent a small group of low-mass hot stars
Summary
- The efficiency analysis of applying hydraulic fracturing of formation at AB1-2 facility of Potochnoye field E M Almukhametova, D I Fattakhov and A I Zakirov1. To cite this article: L Fernández-Menchero et al 2020 J. View the article online for updates and enhancements. Röder et al This content was downloaded from IP address 84.64.104.19 on 12/01/2022 at 14:37
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