Solar Wind Ion Composition

1970 ◽  
Vol 75 (31) ◽  
pp. 6354-6359 ◽  
Author(s):  
T. E. Holzer ◽  
W. I. Axford
Keyword(s):  
Solar Wind ◽  
Ion Composition

The solar wind interaction with Mars: Consideration of Phobos 2 mission observations of an ion composition boundary on the dayside

1991 ◽  
Vol 96 (A7) ◽  
pp. 11165 ◽  
Author(s):  
T. K. Breus ◽  
A. M. Krymskii ◽  
R. Lundin ◽  
E. M. Dubinin ◽  
J. G. Luhmann ◽  
...  
Keyword(s):  
Solar Wind ◽  
Ion Composition ◽  
Solar Wind Interaction

Solar Wind Ion Composition

1968 ◽  
Vol 20 (8) ◽  
pp. 393-395 ◽  
Author(s):  
S. J. Bame ◽  
A. J. Hundhausen ◽  
J. R. Asbridge ◽  
I. B. Strong
Keyword(s):  
Solar Wind ◽  
Ion Composition

Implantation of ions escaping the atmosphere of Mars within the regolith of Phobos, and Phobos’ surface ion weathering

2020 ◽  
Author(s):  
Quentin Nénon ◽  
Andrew R Poppe ◽  
Ali Rahmati ◽  
James P McFadden
Keyword(s):  
Solar Wind ◽  
Atomic Oxygen ◽  
The Moon ◽  
Ion Composition ◽  
Atmospheric Escape ◽  
The Past ◽  
Lunar Samples ◽  
Singly Charged

<p>Mars has lost and is losing its atmosphere into space. Strong evidences of this come from the observation of planetary singly charged heavy ions (atomic oxygen, molecular oxygen, carbon dioxide ions) by Mars Express and MAVEN. Phobos, the closest moon of Mars, orbits only 6,000 kilometers above the red planet’s surface and is therefore a unique vantage point of the planetary atmospheric escape, with the escaping ions being implanted within the regolith of Phobos and altering the properties of the moon’s surface.</p> <p>In this presentation, we aggregate all ion observations gathered in-situ close to the orbit of Phobos by three ion instruments onboard MAVEN, from 2015 to 2019, to constrain the long-term averaged ion environment seen by the Martian moon at all longitudes along its orbit. In particular, the SupraThermal and Thermal Ion Composition (STATIC) instrument onboard MAVEN distinguishes between solar wind and planetary ions. The newly constrained long-term ion environment seen by Phobos is combined with numerical simulations of ion transport and effects in matter.</p> <p>This way, we find that planetary ions are implanted on the near side of Phobos (pointing towards Mars) inside the uppermost tens of nanometers of regolith grains. The composition of near-side grains that may be sampled by future Phobos sample return missions is therefore not only contaminated by planetary ions, as seen in lunar samples with the terrestrial atmosphere, but may show a unique record of the past atmosphere of Mars.</p> <p>The long-term fluxes of planetary ions precipitating onto Phobos are so intense that these ions weather the moon’s surface as much as or more than solar wind ions. In particular, Martian ions accelerate the long-term sputtering and amorphization of the near side regolith by a factor of 2. Another implication is that ion weathering is highly asymmetric between the near side and far side of Phobos.</p>

scholarly journals Composition of quasi-stationary solar wind flows from Ulysses/Solar Wind Ion Composition Spectrometer

2000 ◽  
Vol 105 (A12) ◽  
pp. 27217-27238 ◽  
Author(s):  
R. von Steiger ◽  
N. A. Schwadron ◽  
L. A. Fisk ◽  
J. Geiss ◽  
G. Gloeckler ◽  
...  
Keyword(s):  
Solar Wind ◽  
Ion Composition ◽  
Wind Flows

Evidence of an ion composition boundary (protonopause) in bi-ion fluid simulations of solar wind mass loading

1994 ◽  
Vol 21 (20) ◽  
pp. 2255-2258 ◽  
Author(s):  
Konard Sauer ◽  
Alexander Bogdanov ◽  
Klaus Baumgärtel
Keyword(s):  
Solar Wind ◽  
Mass Loading ◽  
Ion Composition

scholarly journals Solar-Wind Structures That Are Not Destroyed by the Action of Solar-Wind Turbulence

2021 ◽  
Vol 8 ◽  
Author(s):  
Joseph E. Borovsky
Keyword(s):  
Solar Wind ◽  
Magnetic Structure ◽  
Solar Wind Plasma ◽  
Ion Composition ◽  
Mhd Turbulence ◽  
Current Sheets ◽  
Wind Structure ◽  
Solar Wind Structure ◽  
Wind Measurements ◽  
Dominant Process

If MHD turbulence is a dominant process acting in the solar wind between the Sun and 1 AU, then the destruction and regeneration of structure in the solar-wind plasma is expected. Six types of solar-wind structure at 1 AU that are not destroyed by turbulence are examined: 1) corotating-interaction-region stream interfaces, 2) periodic density structures, 3) magnetic structure anisotropy, 4) ion-composition boundaries and their co-located current sheets, 5) strahl-intensity boundaries and their co-located current sheets, and 6) non-evolving Alfvénic magnetic structure. Implications for the solar wind and for turbulence in the solar wind are highlighted and a call for critical future solar-wind measurements is given.

scholarly journals The solar WIND and suprathermal ion composition investigation on the WIND spacecraft

1995 ◽  
Vol 71 (1-4) ◽  
pp. 79-124 ◽  
Author(s):  
G. Gloeckler ◽  
H. Balsiger ◽  
A. B�rgi ◽  
P. Bochsler ◽  
L. A. Fisk ◽  
...  
Keyword(s):  
Solar Wind ◽  
Ion Composition ◽  
Wind Spacecraft

Solar and heliospheric processes from solar wind composition measurements

1994 ◽  
Vol 349 (1690) ◽  
pp. 213-226 ◽  
Keyword(s):  
Solar Wind ◽  
Solar Nebula ◽  
Isotopic Ratio ◽  
Ion Composition ◽  
Interstellar Gas ◽  
Isotopic Abundances ◽  
Wind Measurements ◽  
Deuterium Production ◽  
Solar Wind Composition ◽  
Composition Measurements

Composition measurements in the solar wind provide important information for solar system science and astrophysics. We show in this report how ion composition data are used to investigate chromospheric and coronal processes. Isotopic abundances in the Sun can best be derived from solar wind measurements. 3 He / 4 He is an isotopic ratio with far-reaching implications. It allows us to determine the deuterium abundance in the proto-solar nebula, which in turn leads to an estimate of deuterium production in the early universe. The interstellar gas is the second most important source of heliospheric ions. Atomic abundances in the local interstellar gas are derived from ion composition measurements, and processes in the solar wind termination region and beyond are studied.

Sign in / Sign up

Export Citation Format

Share Document