Astronomy and Astrophysics – Astrophysics
Scientific paper
May 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000jgr...10510527h&link_type=abstract
Journal of Geophysical Research, Volume 105, Issue A5, p. 10527-10533
Astronomy and Astrophysics
Astrophysics
14
Interplanetary Physics: Sources Of The Solar Wind, Solar Physics, Astrophysics, And Astronomy: Corona, And Astronomy: Transition Region
Scientific paper
We use the charge time-of-flight (CTOF) mass and charge spectrometer of the charge, element, and isotope analysis system (CELIAS) on board the Solar and Heliospheric Observatory (SOHO) to determine the solar wind oxygen freeze-in temperature T76 from the O7+ and O6+ abundance ratios in the period from days 92 to 229 of 1996 (Carrington Rotations 1908 to 1912). The freeze-in temperature is a conserved property of the solar wind because the charge states do not change after a distance of a few solar radii. Therefore it is an ideal in situ diagnostic for remote sensing of the inner solar corona. We determine the mean freeze-in temperature during the selected period to be 1.6×106K. We use it to map coronal regions of different temperatures and to determine the separation between such regions based on our observation of abrupt transitions of the freeze-in temperature. We find a upper limit for the separation in the inner corona of 1000 km.
Aellig Matthias R.
Bochsler Peter
Grunwaldt Heiner
Hefti Simon
No associations
LandOfFree
Oxygen freeze-in temperatures measured with SOHO/CELIAS/CTOF 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 freeze-in temperatures measured with SOHO/CELIAS/CTOF, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oxygen freeze-in temperatures measured with SOHO/CELIAS/CTOF will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1195427