Oxygen Abundance and Energy Deposition in the Slow Coronal Wind

Details Oxygen Abundance and Energy Deposition in the Slow Coronal Wind Oxygen Abundance and Energy Deposition in the Slow Coronal Wind

Jun 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006apj...643.1239a&link_type=abstract

The Astrophysical Journal, Volume 643, Issue 2, pp. 1239-1244.

Astronomy and Astrophysics

Astronomy

9

Sun: Solar Wind, Sun: Corona, Sun: Uv Radiation

Scientific paper

Observations of the extended corona obtained with the Ultraviolet Coronagraph Spectrometer (UVCS) on board the Solar and Heliospheric Observatory (SOHO) during the solar minimum years 1996 and 1997 have been analyzed to derive the oxygen abundance in the outer corona. A comparison of the absolute coronal abundance, measured in the coronal regions surrounding the quiescent solar minimum streamers, to the heliospheric values confirms that these regions are the dominant sources of the slow solar wind. However, the inferred coronal abundances are consistent with the heliospheric values only in case the ion velocity distribution is anisotropic and enhanced across the coronal magnetic field. Thus this analysis also leads to the conclusion that energy is deposited in the slow coronal wind at least up to 2.7 Rsolar and that the efficiency of energy deposition is likely to be related to the local coronal magnetic topology.

Affiliated with

Also associated with

No associations

Rating

Oxygen Abundance and Energy Deposition in the Slow Coronal Wind does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Oxygen Abundance and Energy Deposition in the Slow Coronal Wind, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oxygen Abundance and Energy Deposition in the Slow Coronal Wind will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1859058