Determination of Sulfur Abundance in the Solar Wind
| Autor: | Peter Wurz, C. Giammanco, J. A. Paquette, R. Karrer, Peter Bochsler, F. M. Ipavich |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Solar System
Solar energetic particles chemistry.chemical_element Astronomy and Astrophysics Atmospheric sciences Sulfur Astrobiology Interstellar medium Solar wind Planetary science Solar chemical chemistry Space and Planetary Science Abundance (ecology) Physics::Space Physics Environmental science Astrophysics::Solar and Stellar Astrophysics Astrophysics::Earth and Planetary Astrophysics Astrophysics::Galaxy Astrophysics |
| Zdroj: | The Composition of Matter ISBN: 9780387741833 Giammanco, Corrado; Bochsler, Peter; Karrer, Reto; Ipavich, Fred; Paquette, John; Wurz, Peter (2007). Determination of Sulfur Abundance in the Solar Wind. Space science reviews, 130(1-4), pp. 329-333. Dordrecht: Springer Netherlands 10.1007/s11214-007-9211-5 |
| Popis: | Solar chemical abundances are determined by comparing solar photospheric spectra with synthetic ones obtained for different sets of abundances and physical conditions. Although such inferred results are reliable, they are model dependent. Therefore, one compares them with the values for the local interstellar medium (LISM). The argument is that they must be similar, but even for LISM abundance determinations models play a fundamental role (i.e., temperature fluctuations, clumpiness, photon leaks). There are still two possible comparisons—one with the meteoritic values and the second with solar wind abundances. In this work we derive a first estimation of the solar wind element ratios of sulfur relative to calcium and magnesium, two neighboring low-FIP elements, using 10 years of CELIAS/MTOF data. We compare the sulfur abundance with the abundance determined from spectroscopic observations and from solar energetic particles. Sulfur is a moderately volatile element, hence, meteoritic sulfur may be depleted relative to non-volatile elements, if compared to its original solar system value. |
| Databáze: | OpenAIRE |
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