Space Science Reviews

, 143:191

Is the Sun Embedded in a Typical Interstellar Cloud?

Connecting Interstellar Gas in and out of the Heliosphere
Article

DOI: 10.1007/s11214-008-9394-4

Cite this article as:
Frisch, P.C. Space Sci Rev (2009) 143: 191. doi:10.1007/s11214-008-9394-4

Abstract

Interstellar material around the Sun is typical for our neighborhood of the Galaxy. The physical properties and kinematics of the partially ionized interstellar material (ISM) near the Sun are typical of warm diffuse clouds in the solar vicinity. The direction of the interstellar magnetic field at the heliosphere, the polarization of light from nearby stars, and the kinematics of nearby clouds are naturally explained in terms of the S1 superbubble shell. The interstellar radiation field at the Sun appears to be harder than the field ionizing ambient diffuse gas, which may be a consequence of the low opacity of the tiny cloud surrounding the heliosphere.

Keywords

ISMHeliosphere

Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  1. 1.Dept. of Astronomy and AstrophysicsUniversity of ChicagoChicagoUSA