Harold Zirin
Contributor
LOCATION: Pasadena, CA,
Professor of Astrophysics, Emeritus; Director and Builder, Big Bear Solar Observatory, California Institute of Technology, Pasadena. Author of Astrophysics of the Sun and others.
Primary Contributions (8)
Heliopause, boundary of the heliosphere, the spherical region around the Sun that is filled with solar magnetic fields and the outward-moving solar wind consisting of protons and electrons. Nearer the Sun than the heliopause lies the heliosheath, a region of transition where the solar wind slows to…
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