Elemental composition in the slow solar wind measured with the MASS instrument on WIND

Details Elemental composition in the slow solar wind measured with the MASS instrument on WIND Elemental composition in the slow solar wind measured with the MASS instrument on WIND

Jun 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995sowi.conf...35b&link_type=abstract

Bern Univ., International Solar Wind 8 Conference, p. 35

Physics

Chemical Composition, Solar Wind, Solar Physics, Abundance, Energetic Particles, Charge Exchange, Charge Efficiency, Emission Spectra, Mathematical Models, Particle Acceleration, Time Of Flight Spectrometers, Scientific Satellites, Helium, Oxygen, Nitrogen, Neon, Argon, Magnesium, Iron, Silicon

Scientific paper

The MASS instrument on WIND contains the first isochronous time-off light spectrometer to be flown in the solar wind. The first spectra obtained with this instrument has demonstrated its capability to measure the abundances of several high-and low-FIP elements in the solar wind. The derivation of these abundances requires a careful calibration of the charge exchange efficiencies of the relevant ions in carbon foils. These efficiencies and the corresponding instrument functions have been determined in extensive calibration campaigns at different institutions. We present first and preliminary results obtained in slow solar wind streams and we compare these results with those obtained from previous investigations of solar wind abundances and of coronal abundances as derived from Solar Energetic Particles. Recent models of the FIP related fractionation effect predict a depletion of a factor of typically 4 to 5 for high-FIP elements (He, N, O, Ne, Ar, etc.) relative to low-FIP elements (Mg, Fe, Si, etc.). We also compare our results with the detailed predictions of the different models and we discuss the resulting evidence to validate or to invalidate different physical scenarios explaining the feeding and the acceleration of slow stream solar wind.

Affiliated with

Also associated with

No associations

Rating

Elemental composition in the slow solar wind measured with the MASS instrument on 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 Elemental composition in the slow solar wind measured with the MASS instrument on WIND, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Elemental composition in the slow solar wind measured with the MASS instrument on WIND will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-759786