Esmeralda Herminia Mallada

Universidad de la República de Uruguay | UdelaR · Instituto de Física (Facultad de Ciencias)

We simulate numerically encounters of wide binaries with field stars and Giant Molecular Clouds (GMCs) by means of the impulse approximation. We analyze the time evolution of the distributions of eccentricities and semimajor axes of wide binaries with given initial conditions, at intervals of 109 yr, up to 1010 yr (assumed age of the Galaxy). We co...

We search for possible carriers of terrestrial ocean water. On the basis that it was not endogenic, we explore possible sources of ice-rich planetesimals which may have collided with the Earth after the heavy planetesimal bombardment, once the young Earth was capable to keep the accreted water. Comets were thought to be the main carriers of water,...