Detection of 55–80 keV Hydrogen Atoms of Heliospheric Origin by CELIAS/HSTOF onSOHO
| Autor: | Reinald Kallenbach, Eberhard Möbius, K.-U. Reiche, D. Hovestadt, M. I. Verigin, G. G. Managadze, Martin Hilchenbach, A. Bürgi, B. Wilken, Antoinette B. Galvin, H. Grünwaldt, W. I. Axford, S. Hefti, P. Laeverenz, E. Marsch, Stefano Livi, Peter Wurz, Martin A. Lee, Hans Balsiger, K. C. Hsieh, H. S. Ogawa, George Gloeckler, Manfred Scholer, Marcia Neugebauer, Michael A. Coplan, Johannes Geiss, Darrell L. Judge, Fritz Gliem, W. Bornemann, F. M. Ipavich, Berndt Klecker, Peter Bochsler |
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| Rok vydání: | 1998 |
| Předmět: |
Solar minimum
Physics Hydrogen Astrophysics::High Energy Astrophysical Phenomena Astronomy Lagrangian point chemistry.chemical_element Astronomy and Astrophysics Cosmic ray Astrophysics Solar wind chemistry Space and Planetary Science Observatory Physics::Space Physics Astrophysics::Solar and Stellar Astrophysics Interplanetary spaceflight Heliosphere |
| Zdroj: | The Astrophysical Journal. 503:916-922 |
| ISSN: | 1538-4357 0004-637X |
| DOI: | 10.1086/306022 |
| Popis: | The High-Energy Suprathermal Time-of-Flight sensor (HSTOF) of the Charge, Element, and Isotope Analysis System (CELIAS) on the Solar and Heliospheric Observatory (SOHO) near the Lagrangian point L1 is capable of identifying energetic hydrogen atoms (EHAs) between 55 and 80 keV. Between 1996 February 13 and 1997 August 31, near solar minimum, there were 285 "quiet" days when the interplanetary charged-particle flux was low. During these quiet times, HSTOF scanned the apex of the heliosphere once and the antiapex twice. The flux level and time profile, and hence the arrival direction, of the EHAs accumulated during these quiet times are best interpreted as fluxes of EHAs coming from the heliosheath. |
| Databáze: | OpenAIRE |
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