Is There a Chromospheric Footprint of the Solar Wind?

Details Is There a Chromospheric Footprint of the Solar Wind? Is There a Chromospheric Footprint of the Solar Wind?

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005apj...624l.117m&link_type=abstract

The Astrophysical Journal, Volume 624, Issue 2, pp. L117-L120.

Astronomy and Astrophysics

Astronomy

8

Sun: Solar-Terrestrial Relations, Sun: Solar Wind, Sun: Atmospheric Motions, Sun: Chromosphere

Scientific paper

We correlate the inferred structure of the solar chromospheric plasma topography with in situ solar wind velocity and composition data measured at 1 AU. Diagnostics of atmospheric ``depth'' in the chromosphere are made for several observing periods in active, coronal hole, and quiet-Sun regions. We demonstrate that the inferred chromospheric diagnostics correlate very strongly with solar wind velocity and inversely with the ratio of ionic oxygen (O+7/O+6) densities. These correlations suggest that the structure of the solar wind is rooted deeper in the outer solar atmosphere than has been previously considered.

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