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Exospheric Neutral Hydrogen Density at the Nominal 10 R_E 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 R_E 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…