학술논문
The Lunar Environment Heliophysics X-ray Imager (LEXI) Mission
Document Type
Brief Communication
Author
Walsh, B. M.; Kuntz, K. D.; Busk, S.; Cameron, T.; Chornay, D.; Chuchra, A.; Collier, M. R.; Connor, C.; Connor, H. K.; Cravens, T. E.; Dobson, N.; Galeazzi, M.; Kim, H.; Kujawski, J.; Paw U, C. K.; Porter, F. S.; Naldoza, V.; Nutter, R.; Qudsi, R.; Sibeck, D. G.; Sembay, S.; Shoemaker, M.; Simms, K.; Thomas, N. E.; Atz, E.; Winkert, G.
Source
Space Science Reviews. 220(4)
Subject
Language
English
ISSN
0038-6308
1572-9672
1572-9672
Abstract
The Lunar Environment heliospheric X-ray Imager (LEXI) is a wide field-of-view soft X-ray telescope developed to study solar wind-magnetosphere coupling. LEXI is part of the Blue Ghost 1 mission comprised of 10 payloads to be deployed on the lunar surface. LEXI monitors the dayside magnetopause position and shape as a function of time by observing soft X-rays (0.1–2 keV) emitted from solar wind charge-exchange between exospheric neutrals and high charge-state solar wind plasma in the dayside magnetosheath. Measurements of the shape and position of the magnetopause are used to test temporal models of meso- and macro-scale magnetic reconnection. To image the boundary, LEXI employs lobster-eye optics to focus X-rays to a microchannel plate detector with a 9.1×∘9.1∘ field of view.