3 papers
astro-ph.SR2026
Bimodality in Rotational Modulation of Planet-Hosting Stars
Alexandre Araújo, Adriana Valio
Stellar magnetic activity is governed by the interplay between rotation, convection, and the evolution of surface magnetic structures, yet the role of planetary systems in shaping…
astro-ph.SR2024
Hydrogen recombination continuum as the radiative model for stellar optical flares
Paulo J. A. Simões, Alexandre Araújo, Adriana Válio +1
The study of stellar flares has increased with new observations from CoRoT, Kepler, and TESS satellites, revealing the broadband visible emission from these events. Typically, stel…
astro-ph.SR2023
Dependence of stellar differential rotation on effective temperature and rotation: an analysis from starspot transit mapping
Araújo, Valio
Stellar rotation is crucial for studying stellar evolution since it provides information about age, angular momentum transfer, and magnetic fields of stars. In the case of the Sun,…