INTERSTELLAR PICKUP HELIUM FROM CELIAS CTOF ON SOHO:
EFFECTS OF THE SOLAR WIND SPEED AND INTERPLANETARY MAGNETIC FIELD

Presented at American Geophysical Union Fall Meeting
December 1998; San Francisco, CA

CONTENTS:

Data Analysis

Magnetic Field Extrapolation

Traditional Model

Two New Effects:

Conclusions

AUTHORS:

  • Y.E. Litvinenko, E. Möbius
    University of New Hampshire,
    Durham, NH
  • H. Grünwaldt, M. Hilchenbach
    Max Planck-Institut für Aeronomie,
    Katlenburg-Lindau, Germany
  • M. Aellig, P. Bochsler
    Physikalisches Institut, Universität Bern,
    Switzerland
  • D. Hovestadt
    Max-Planck Institut für extraterrestrische Physik,
    Garching, Germany
  • F.M. Ipavich,
    University of Maryland,
    College Park, MD
  • D.L. Judge, H. Ogawa
    University of Southern California,
    Los Angeles, CA

RELATED FIGURES:

Magnetic Field Extrapolation Magnetic Field Extrapolation Sensitivity of Pickup Ion Distrubution on the Interstellar Gas Flow Sensitivity of Pickup Ion Distribution on the Interstellar Gas Flow
SOHO CELIAS CTOF and MTOF/PM: Average pickup He+ spectrum SOHO CELIAS CTOF and MTOF/PM: Average pickup He+ spectrum AMPTE SULEICA, 15 Nov. 1985: cut-off energy of pickup ions AMPTE SULEICA, 15 Nov. 1985: cut-off energy of pickup ions
SOHO CELIAS CTOF and WIND MAG: Pickup He+ flux for 1.3 < w < 1.4 versus IMF direction SOHO CELIAS CTOF and MTOF/PM: Pickup ion spectra for two solar wind speed ranges SOHO CELIAS CTOF and MTOF/PM: Comparison of the pickup ion spectrum as observed by SOHO CTOF with a model based on the injection of He+ at V = 0 and V = Vneutral SOHO CELIAS CTOF and MTOF/PM: Comparison of the pickup ion spectrum as observed by SOHO CTOF with a model based on the injection of He+ at V = 0 and V = Vneutral
SOHO CELIAS CTOF and WIND MAG: Pickup He+ flux for 1.9 < e < 2 as a function of IMF direction SOHO CELIAS CTOF and WIND MAG: Pickup He+ flux for 1.9 < w < 2 as a function of IMF direction SOHO CELIAS CTOF and MTOF/PM: Pickup ion spectra for two solar wind speed ranges SOHO CELIAS CTOF and MTOF/PM: Pickup ion spectra for two solar wind speed ranges
SOHO CELIAS CTOF and WIND MAG: Pickup ion spectra averaged over 30 bins in IMP angle SOHO CELIAS CTOF and WIND MAG: Pickup ion spectra averaged over 30 bins in IMP angle