69 citations · 210 across the 4 of their papers we have counts for
13 papers
Stellar evolution models with entropy-calibrated mixing-length parameter: application to red giants
Federico Spada, Pierre Demarque, Friedrich Kupka
We present evolutionary models for solar-like stars with an improved treatment of convection that results in a more accurate estimate of the radius and effective temperature. This…
Seismic evidence for near solid-body rotation in two Kepler subgiants and implications for angular momentum transport
S. Deheuvels, J. Ballot, P. Eggenberger +3
Asteroseismic measurements of the internal rotation of subgiants and red giants all show the need for invoking a more efficient transport of angular momentum than theoretically pre…
Active red giants: close binaries versus single rapid rotators
Patrick Gaulme, Jason Jackiewicz, Federico Spada +7
The objective of this work is to determine what fraction of red-giant (RG) stars shows photometric rotational modulation, and understand its origin. One of the underlying questions…
Common dynamo scaling in slowly rotating young and evolved stars
Jyri J. Lehtinen, Federico Spada, Maarit J. Käpylä +2
One interpretation of the activity and magnetism of late-type stars is that these both intensify with decreasing Rossby number up to a saturation level, suggesting that stellar dyn…
Testing the entropy calibration of the radii of cool stars: models of alpha Centauri A and B
F. Spada, P. Demarque
We present models of alpha Centauri A and B implementing an entropy calibration of the mixing-length parameter alpha_MLT, recently developed and successfully applied to the Sun (Sp…
On the competing effect of wind braking and interior coupling in the rotational evolution of solar-like stars
F. Spada, A. C. Lanzafame
Solar-like stars (M < 1.3 Msun) lose angular momentum through their magnetized winds. The resulting evolution of the surface rotation period, which can be directly measured photome…