Dartmouth Events

Physics & Astronomy - Senior Honor Thesis - Andrew Sun, Dartmouth College

Title: "Time-Dependent Simulation of Neutral Helium in the Heliosphere"

Wednesday, May 30, 2018
2:30pm – 4:30pm
Wilder 102
Intended Audience(s): Public
Categories: Lectures & Seminars

Abstract: We develop a program that simulates helium fluxes at near-Earth detection points based on helium cross-exchange and photoionization losses from a time dependent solar background. The computational challenges of creating such a simulation are discussed. As expected, the periodic photoionization rate due to the Sun's roughly 11-year solar cycle creates a significant periodic fluctuation in the simulated helium flux at a near-Earth detector. However, losses from the cross-exchange channel seem to have a very small time-dependent effect on the flux signal, against our expectations.

For more information, contact:
Tressena Manning
603-646-2854

Events are free and open to the public unless otherwise noted.