Temporal Variability of Waves at the Proton Cyclotron Frequency Upstream from Mars: Implications for Mars Distant Hydrogen Exosphere
We report on the temporal variability of the occurrence of waves at the local proton cyclotron frequency upstream from the Martian bow shock from Mars Global Surveyor observations during the first aerobraking and science phasing orbit periods. Observations at high southern latitudes during minimum-t...
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ftdatacite:10.48550/arxiv.1304.7264 2023-05-15T18:22:35+02:00 Temporal Variability of Waves at the Proton Cyclotron Frequency Upstream from Mars: Implications for Mars Distant Hydrogen Exosphere Bertucci, Cesar Romanelli, Norberto Chaufray, Jean-Yves Gomez, Daniel Mazelle, Christian Delva, Magda Modolo, Ronan Gonzalez-Galindo, Francisco Brain, David Andrew 2013 https://dx.doi.org/10.48550/arxiv.1304.7264 https://arxiv.org/abs/1304.7264 unknown arXiv https://dx.doi.org/10.1002/grl.50709 arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Space Physics physics.space-ph FOS Physical sciences article-journal Article ScholarlyArticle Text 2013 ftdatacite https://doi.org/10.48550/arxiv.1304.7264 https://doi.org/10.1002/grl.50709 2022-04-01T13:29:21Z We report on the temporal variability of the occurrence of waves at the local proton cyclotron frequency upstream from the Martian bow shock from Mars Global Surveyor observations during the first aerobraking and science phasing orbit periods. Observations at high southern latitudes during minimum-to-mean solar activity show that the wave occurrence rate is significantly higher around perihelion southern summer solstice and lower around the same hemisphere's spring and autumn equinoxes. A similar trend is observed in the hydrogen (H) exospheric density profiles over the Martian South Pole obtained from a model including UV thermospheric heating effects. In spite of the complexity in the ion pick-up and plasma wave generation and evolution processes, these results support the idea that variations in the occurrence of waves could be used to study the temporal evolution of the distant Martian H corona and its coupling with the thermosphere at altitudes currently inaccessible to direct measurements. : 16 pages, 2 figures, Submitted to Geophysical Research Letters Text South pole DataCite Metadata Store (German National Library of Science and Technology) South Pole |
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Space Physics physics.space-ph FOS Physical sciences |
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Space Physics physics.space-ph FOS Physical sciences Bertucci, Cesar Romanelli, Norberto Chaufray, Jean-Yves Gomez, Daniel Mazelle, Christian Delva, Magda Modolo, Ronan Gonzalez-Galindo, Francisco Brain, David Andrew Temporal Variability of Waves at the Proton Cyclotron Frequency Upstream from Mars: Implications for Mars Distant Hydrogen Exosphere |
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Space Physics physics.space-ph FOS Physical sciences |
description |
We report on the temporal variability of the occurrence of waves at the local proton cyclotron frequency upstream from the Martian bow shock from Mars Global Surveyor observations during the first aerobraking and science phasing orbit periods. Observations at high southern latitudes during minimum-to-mean solar activity show that the wave occurrence rate is significantly higher around perihelion southern summer solstice and lower around the same hemisphere's spring and autumn equinoxes. A similar trend is observed in the hydrogen (H) exospheric density profiles over the Martian South Pole obtained from a model including UV thermospheric heating effects. In spite of the complexity in the ion pick-up and plasma wave generation and evolution processes, these results support the idea that variations in the occurrence of waves could be used to study the temporal evolution of the distant Martian H corona and its coupling with the thermosphere at altitudes currently inaccessible to direct measurements. : 16 pages, 2 figures, Submitted to Geophysical Research Letters |
format |
Text |
author |
Bertucci, Cesar Romanelli, Norberto Chaufray, Jean-Yves Gomez, Daniel Mazelle, Christian Delva, Magda Modolo, Ronan Gonzalez-Galindo, Francisco Brain, David Andrew |
author_facet |
Bertucci, Cesar Romanelli, Norberto Chaufray, Jean-Yves Gomez, Daniel Mazelle, Christian Delva, Magda Modolo, Ronan Gonzalez-Galindo, Francisco Brain, David Andrew |
author_sort |
Bertucci, Cesar |
title |
Temporal Variability of Waves at the Proton Cyclotron Frequency Upstream from Mars: Implications for Mars Distant Hydrogen Exosphere |
title_short |
Temporal Variability of Waves at the Proton Cyclotron Frequency Upstream from Mars: Implications for Mars Distant Hydrogen Exosphere |
title_full |
Temporal Variability of Waves at the Proton Cyclotron Frequency Upstream from Mars: Implications for Mars Distant Hydrogen Exosphere |
title_fullStr |
Temporal Variability of Waves at the Proton Cyclotron Frequency Upstream from Mars: Implications for Mars Distant Hydrogen Exosphere |
title_full_unstemmed |
Temporal Variability of Waves at the Proton Cyclotron Frequency Upstream from Mars: Implications for Mars Distant Hydrogen Exosphere |
title_sort |
temporal variability of waves at the proton cyclotron frequency upstream from mars: implications for mars distant hydrogen exosphere |
publisher |
arXiv |
publishDate |
2013 |
url |
https://dx.doi.org/10.48550/arxiv.1304.7264 https://arxiv.org/abs/1304.7264 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
https://dx.doi.org/10.1002/grl.50709 |
op_rights |
arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
op_doi |
https://doi.org/10.48550/arxiv.1304.7264 https://doi.org/10.1002/grl.50709 |
_version_ |
1766201995345002496 |