Science Seminars

2/5/2015 – Investigating our Heliospheric Environment: IBEX Observations

Speaker: Harald Kucharek (Univ. of New Hampshire)
Date: Saturday, Feb 05, 2022
Time: 4:00 PM
Location: SPSC W120

Seminar Abstract:

The Interstellar Boundary Explorer (IBEX) launched in Oct. 2008 and the observations by the Voyager spacecraft provided truly remarkable advances in heliospheric research. While Voyager provided in situ measurements of the plasma conditions on leaving our solar system, IBEX imaged the interactions occurring at the boundary of our heliosphere in all directions in space by detecting Energetic Neutral Atoms (ENAs). These measurements generated a very impressive list of achievements in heliospheric research and the exploration of our heliospheric environment. For instance, IBEX detected the so-called “Ribbon”, an unexpectedly enhanced ENA emission that spans across the sky. IBEX also determined the parameters of the interstellar flow, allowing us to explore the dynamics and the global structure of our heliosphere.

In this presentation we will review the IBEX measurement technique and discuss selected IBEX observations. We show how these observations have changed our view of the global structure of the heliosphere and how they pave the way to future investigations such as IMAP.