RT Journal Article
T1 Analysis of the far ultraviolet silicon lines in G dwarf stars
A1 Fernández Figueroa, María José
A1 Rego Fernández, Manuel
A1 Cornide Castro-Piñeiro, Manuel
AB The structure of the outer stellar regions is investigated for four G type dwarfs observed with the IUE satellite. Line fluxes of the Si II lines at 1817 Å, 1808 A, and 1309 Å  and Si III at 1206 Å are used to obtain temperatures and electronic densities. A temperature of 16,000 K is found from the lines at 1817 Å and 1808 Å, 26,000 K from the 1309 A line and 50,000 K from that at 1206 A. Predicted fluxes are compared with the observed ones. The significance of the results is discussed in terms of line formation regions.
PB EDP Sciencies
SN 0004-6361
YR 1980
FD 1980
LK https://hdl.handle.net/20.500.14352/64983
UL https://hdl.handle.net/20.500.14352/64983
LA eng
NO © European Southern Observatory. © EDP Sciencies.We are grateful to Drs. M. Penston and A. Heck, VILPSA assistant astronomers, for help during the course of observations and also to the VILPSA team responsible for training and data reduction.
DS Docta Complutense
RD 6 abr 2025