RT Journal Article
T1 Emissions from the transition regions and coronae of three cool dwarf stars
A1 Fernández Figueroa, María José
A1 Castro Rubio, Elisa De
A1 Rego Fernández, Manuel
AB Ultraviolet emissions of τCet, δPav, and 61 Cyg A have been analysed to determine the structure of their outer atmospheres.Emission line fluxes are used to find the emission measure distributions. Using two boundary values of the electron pressure, models of the transition region have been derived. In the two models of τCet the net conductive flux is less than the radiation losses at all temperatures. However, for δPav and 61 Cyg A the model with the upper boundary value of the electron pressure has a temperature range where the radiative losses are less than the net conductive fluxes. Measured X-ray fluxes are used to test the coronal temperature values derived from the ultraviolet  observations.
PB EDP Sciencies
SN 0004-6361
YR 1983
FD 1983
LK https://hdl.handle.net/20.500.14352/64990
UL https://hdl.handle.net/20.500.14352/64990
LA eng
NO © European Southern Observatory. We would like to thank an anonymous referee for useful comments.
DS Docta Complutense
RD 31 dic 2025