Interactions between exoplanets and their host stars
By Dr Aline Vidotto, Astrophysics Department, Trinity College Dublin
May 8th 2017
Venue: Physics Building Trinity College Dublin
About the Lecture
As of 1st of April 2017 there has been 3,607 planets discovered orbiting around 2,701 planetary systems. There are planets that are so near to their star that they take only a few hours to orbit and there are others so far away that they take thousands of years to orbit.
Some are so far out that it is difficult to tell whether they are gravitationally bound to the star.
Dr Vidotto's main area of research is on the interaction of exoplanets with their host star's wind. For that, she developed 3D magnetohydrodynamics numerical simulations of winds of cool stars, which permeate entire exoplanetary systems.
In this lecture Dr. Aline Vidotto will give a broad overview of the relationships between exoplanets and their hosts stars from our current understanding. She will also outline what can be learned from the gravitational effects of stars on planets.
About the Lecturer
Dr. Aline Vidotto formerly of the University of St. Andrews is now assistant professor in the School of Physics, Trinity College Dublin.
Her Main Research Interests: Solar-like stars (main sequence and pre-main sequence) & low-mass stars: magnetised coronal winds, rotating outflows, structure of the coronal magnetic field, angular momentum loss, magnetic interaction between planets and the host star, accretion disks.
Formation of bow shocks due to magnetic interaction between planets and the host star. Radio emission through electron-cyclotron maser instability. Cool supergiant stars: models of winds driven by Alfven waves, wind heating by dissipation of Alfven waves, charged dust-wave interaction. Three-dimensional simulations, time-dependent effects, adaptive mesh refinement.
After the lecture there will be a social reception in The Lombard
and we encourage all of you to come along for a chat.
All are welcome to attend and free food will be kindly provided by The Lombard.
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A prize draw will be held after the lecture.
|Date||Monday 8th May
Subject to change - please check back later
Physics Department , Fitzgerald Building,
Trinity College Dublin.
|Admission||€10 (€5 Astronomy Ireland members and concessions)
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Acknowledgment: Astronomy Ireland would like to thank the TCD Astrophysics Research Group for hosting AI public lectures in Trinity College Dublin.