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A Case Study on the Impact of Interplanetary Coronal Mass Ejection on the Martian O(1S) 557.7 nm Dayglow Emission Using ExoMars TGO/NOMAD-UVIS Observations: First Results

dc.contributor.authorSharma, A.R.
dc.contributor.authorRam, L.
dc.contributor.authorSuhaag, H.
dc.contributor.authorPatgiri, D.
dc.contributor.authorSoret, L.
dc.contributor.authorGérard, J.-C.
dc.contributor.authorThomas, I.R.
dc.contributor.authorVandaele, A.C.
dc.contributor.authorSarkhel, S.
dc.date2025
dc.date.accessioned2025-04-18T09:31:26Z
dc.date.available2025-04-18T09:31:26Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/14020
dc.descriptionWe report, for the first time, the impact of interplanetary coronal mass ejections (ICME) on the recently discovered O(1S) 557.7 nm dayglow emission in the Martian atmosphere. While there are a few studies on the seasonal variation of 557.7 nm dayglow emission available in the literature, the impact of ICME has not been investigated so far. Using the instruments aboard the ExoMars-TGO and Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft, we show that the primary emission peak (75–80 km) remains unaffected during ICME events compared to quiet-times. However, an enhancement has been observed in the brightness of the secondary emission peak (110–120 km) and the upper altitude region (140–180 km). The enhancement is attributed to the increased solar electrons, X-ray fluxes and Solar Energetic Particles, augmenting the electron-impact processes causing the enhancement in the brightness. Thus, this study has an implication to the brightness of Martian upper atmosphere during intense solar transients like ICME.
dc.languageeng
dc.titleA Case Study on the Impact of Interplanetary Coronal Mass Ejection on the Martian O(1S) 557.7 nm Dayglow Emission Using ExoMars TGO/NOMAD-UVIS Observations: First Results
dc.typeArticle
dc.subject.frascatiPhysical sciences
dc.audienceScientific
dc.subject.freeInterplanetary flight
dc.subject.freeMartian surface analysis
dc.subject.freeUpper atmosphere
dc.subject.freeAtmosphere evolution
dc.subject.freeDayglow
dc.subject.freeExoMars
dc.subject.freeExomars-TGO
dc.subject.freeInterplanetary coronal mass ejections
dc.subject.freeMars atmosphere
dc.subject.freeMars atmosphere and volatile evolution
dc.subject.freeMartian dayglow
dc.subject.freeO(1S) 557.7 nm emission
dc.subject.freeVolatiles evolution
dc.subject.freeairglow
dc.subject.freealtitude
dc.subject.freecoronal mass ejection
dc.subject.freeinterplanetary dust
dc.subject.freeMars
dc.subject.freeMartian atmosphere
dc.subject.freeseasonal variation
dc.subject.freespacecraft
dc.subject.freeupper atmosphere
dc.subject.freeSolar energy
dc.source.titleGeophysical Research Letters
dc.source.volume52
dc.source.issue5
dc.source.pagee2024GL111745
Orfeo.peerreviewedYes
dc.identifier.doi10.1029/2024GL111745
dc.identifier.url


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