127 citations · 574 across the 16 of their papers we have counts for
16 papers
Testing the accuracy of Coimbra Astronomical Observatory solar filament historical series (1929-1941)
Ana Lourenço, Ricardo Gafeira, Vitor Bonifacio +3
The present work aims to validate the positions of solar filaments published in the Annals of Coimbra University Astronomical Observatory, currently the Geophysical and Astronomica…
Revisiting the mass- and radius-luminosity relations for FGK main-sequence stars
João Fernandes, Ricardo Gafeira, Johannes Andersen
Scaling relations are very useful tools for estimating unknown stellar quantities. Within this framework, eclipsing binaries are ideal for this goal because their mass and radius a…
José Monteiro da Rocha (1734-1819) and his work of 1782 on the determination of comet orbits
Fernando B. Figueiredo, João M. Fernandes
In 1782 José Monteiro da Rocha, astronomer and professor of the University of Coimbra, presented in a public session of the Royal Academy of Sciences of Lisbon a memoir on the prob…
Asteroseismic modelling of solar-type stars: A deeper look at the treatment of initial helium abundance
Benard Nsamba, Nuno Moedas, Tiago L. Campante +7
Detailed understanding of stellar physics is essential towards a robust determination of stellar properties (e.g. radius, mass, and age). Among the vital input physics used in the…
Li depletion in solar analogues with exoplanets: Extending the sample
E. Delgado Mena, G. Israelian, J. I. González Hernández +8
We want to study the effects of the formation of planets and planetary systems on the atmospheric Li abundance of planet host stars. In this work we present new determinations of l…
New and updated stellar parameters for 90 transit hosts. The effect of the surface gravity
A. Mortier, N. C. Santos, S. G. Sousa +5
Context. Precise stellar parameters are crucial in exoplanet research for correctly determining of the planetary parameters. For stars hosting a transiting planet, determining of t…