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Solar Minimum Exospheric Neutral Density Near the Subsolar Magnetopause Estimated From the XMM Soft X-Ray Observations on 12 November 2008
Pagani, C.; Kuntz, K. D.; Koutroumpa, D. +3 more
The Earth's magnetosheath and cusps emit soft X-rays due to the charge exchange between highly charged solar wind ions and exospheric hydrogen atoms. The Lunar Environment Heliospheric X-ray Imager and Solar wind Magnetosphere Ionosphere Link Explorer missions are scheduled to image the Earth's dayside magnetosphere system in soft X-rays to invest…
Temporal and Spectral Studies by XMM-Newton of Jupiter's X-ray Auroras During a Compression Event
Coates, A. J.; Jackman, C. M.; Branduardi-Raymont, G. +16 more
We report the temporal and spectral results of the first XMM-Newton observation of Jupiter's X-ray auroras during a clear magnetospheric compression event on June 2017 as confirmed by data from the Jovian Auroral Distributions Experiment (JADE) instrument onboard Juno. The northern and southern auroras were visible twice and thrice respectively as…
Jovian Auroral Ion Precipitation: X-Ray Production From Oxygen and Sulfur Precipitation
Cravens, T. E.; Mauk, B. H.; Dunn, W. R. +6 more
Many attempts have been made to model X-ray emission from both bremsstrahlung and ion precipitation into Jupiter's polar caps. Electron bremsstrahlung modeling has fallen short of producing the total overall power output observed by Earth-orbit-based X-ray observatories. Heavy ion precipitation was able to reproduce strong X-ray fluxes, but the pr…
Exospheric Neutral Hydrogen Density at the Nominal 10 RE Subsolar Point Deduced From XMM-Newton X-Ray Observations
Connor, Hyunju K.; Carter, Jennifer A.
We investigate the exospheric neutral density near the subsolar magnetopause, assuming Xgse = 10 RE as its typical location, to support the upcoming Solar wind-Magnetosphere-Ionosphere Link Explorer that will visualize the Earth's magnetosheath and cusps in soft X-rays. Neutral hydrogen density is a key parameter that controls soft X-ra…
Jupiter's X-ray and EUV auroras monitored by Chandra, XMM-Newton, and Hisaki satellite
Hasegawa, H.; Fujimoto, M.; Masters, A. +17 more
Jupiter's X-ray auroral emission in the polar cap region results from particles which have undergone strong field-aligned acceleration into the ionosphere. The origin of precipitating ions and electrons and the time variability in the X-ray emission are essential to uncover the driving mechanism for the high-energy acceleration. The magnetospheric…
Modeling the magnetospheric X-ray emission from solar wind charge exchange with verification from XMM-Newton observations
Palmroth, Minna; Milan, Steve E.; Carter, Jennifer A. +3 more
An MHD-based model of terrestrial solar wind charge exchange (SWCX) is created and compared to 19 case study observations in the 0.5-0.7 keV emission band taken from the European Photon Imaging Cameras on board XMM-Newton. This model incorporates the Global Unified Magnetosphere-Ionosphere Coupling Simulation-4 MHD code and produces an X-ray emiss…
Comparative analysis and variability of the Jovian X-ray spectra detected by the Chandra and XMM-Newton observatories
Bhardwaj, Anil; Branduardi-Raymont, Graziella; Lisse, Carey M. +6 more
Expanding upon recent work, a more comprehensive spectral model based on charge exchange induced X-ray emission by ions precipitating into the Jovian atmosphere is used to provide new understanding of the polar auroras. In conjunction with the Xspec spectral fitting software, the model is applied to analyze observations from both Chandra and XMM-N…