Academic Journal
Identifying the Variety of Jovian X-Ray Auroral Structures: Tying the Morphology of X-Ray Emissions to Associated Magnetospheric Dynamics
| العنوان: | Identifying the Variety of Jovian X-Ray Auroral Structures: Tying the Morphology of X-Ray Emissions to Associated Magnetospheric Dynamics |
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| المؤلفون: | Weigt, D.M., Jackman, C.M., Moral Pombo, D., Badman, S.V., Louis, C.K., Dunn, W.R., McEntee, S.C., Branduardi-Raymont, G., Grodent, Denis, Vogt, M.F., Tao, C., Gladstone, G.R., Kraft, R.P., Kurth, W.S., Connerney, J.E.P. |
| المساهمون: | STAR - Space sciences, Technologies and Astrophysics Research - ULiège |
| المصدر: | Journal of Geophysical Research. Space Physics, 128 (11) (2023-11) |
| بيانات النشر: | John Wiley and Sons Inc, 2023. |
| سنة النشر: | 2023 |
| مصطلحات موضوعية: | Jupiter, magnetosphere, magnetospheric dynamics, ultraviolet aurora, X-ray aurora, Geophysics, Space and Planetary Science, Physical, chemical, mathematical & earth Sciences, Space science, astronomy & astrophysics, Physique, chimie, mathématiques & sciences de la terre, Aérospatiale, astronomie & astrophysique |
| الوصف: | We define the spatial clustering of X-rays within Jupiter's northern auroral regions by classifying their distributions into “X-ray auroral structures.” Using data from Chandra during Juno's main mission observations (24 May 2016 to 8 September 2019), we define five X-ray structures based on their ionospheric location and calculate the distribution of auroral photons. The morphology and ionospheric location of these structures allow us to explore the possibility of numerous X-ray auroral magnetospheric drivers. We compare these distributions to Hubble Space Telescope (HST) and Juno (Waves and MAG) data, and a 1D solar wind propagation model to infer the state of Jupiter's magnetosphere. Our results suggest that the five sub-classes of “X-ray structures” fall under two broad morphologies: fully polar and low latitude emissions. Visibility modeling of each structure suggests the non-uniformity of the photon distributions across the Chandra intervals are likely associated with the switching on/off of magnetospheric drivers as opposed to geometrical effects. The combination of ultraviolet (UV) and X-ray morphological structures is a powerful tool to elucidate the behavior of both electrons and ions and their link to solar wind/magnetospheric conditions in the absence of an upstream solar monitor. Although much work is still needed to progress the use of X-ray morphology as a diagnostic tool, we set the foundations for future studies to continue this vital research. |
| نوع الوثيقة: | journal article http://purl.org/coar/resource_type/c_6501 article peer reviewed |
| اللغة: | English |
| Relation: | https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2023JA031656; urn:issn:2169-9380; urn:issn:2169-9402 |
| DOI: | 10.1029/2023JA031656 |
| URL الوصول: | https://orbi.uliege.be/handle/2268/324760 |
| Rights: | open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsorb.324760 |
| قاعدة البيانات: | ORBi |
| DOI: | 10.1029/2023JA031656 |
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