<div dir="ltr"><div>Hi everyone,</div><div><br></div><div>this is just a reminder about the next very informal seminar on Monday! See info below.<br></div><div><br></div><div>Soon,<br></div><div>Lorenzo</div><div><br></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Il giorno gio 3 nov 2022 alle ore 12:18 Lorenzo Tamellini <<a href="mailto:tamellini@imati.cnr.it">tamellini@imati.cnr.it</a>> ha scritto:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Dear all,<div><br></div><div>The next very informal seminar will be given by Elisa Alessi (CNR-IMATI, Milano) at 11:00 on November 21, in aula Beltrami. Title and abstract are below.</div><div><br></div><div>Best regards</div><div>Lorenzo, Andrea, Laura</div><div><a href="https://sites.google.com/view/very-informal-seminars" target="_blank">https://sites.google.com/view/very-informal-seminars</a><br></div><div><br></div>========================================<br><b>Title:</b> Dynamical systems theory applied to astrodynamics and celestial mechanics problems<br><br><b>Abstract:</b> In this seminar, I will describe how dynamical systems theory, in particular the computation of equilibrium points and the associated central and hyperbolic invariant manifolds for a system of ordinary differential equations, is applied to design trajectories for interplanetary probes and end-of-life strategies for Earth's orbiting satellites. In particular, I will explain how the Lagrangian points of the Circular Restricted Three-Body Problem are exploited for actual missions and how well-defined orbital resonances associated with the third-body perturbation or the solar radiation pressure coupled with the planetary oblateness are analyzed as possible effective means to re-enter the Earth's atmosphere. In planetary science, analogous techniques can be applied to obtain a map that can catalog, in a dynamical perspective, the asteroids in co-orbital motion with respect to a given planet.<br><font color="#888888"><br><br></font></div>
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