Combined heliosphere‐astronomical data and models enrich our understanding both of effects the solar galactic environment might have on the inner heliosphere, and of interstellar clouds. Present data suggest that N(Fe+)/N(D°) increases toward the upwind direction of the cluster of interstellar clouds (CLIC) flowing past the Sun. Cloud kinematics and abundances suggest an origin related to a supershell around the Scorpius‐Centaurus Association. The solar space trajectory indicates the Sun entered the CLIC gas relatively recently.

Topics
Galactic properties, Heliosphere, Interstellar clouds, Scorpius-Centaurus association
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© 2004 American Institute of Physics.
2004
American Institute of Physics
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