2014/12/01 by Alla V. Suvorova, Suvorova, Alla V., Alexei V. Dmitriev +1
Physics and Astronomy · #FOS: Physical sciences #Space Physics (physics.space-ph) #physics.space-ph
paper · pdf · doi:10.48550/arxiv.1412.0482
17 pages,5 figures, submitted to Adv.in Astronomy. arXiv admin note: text overlap with arXiv:1410.4337
arxiv created 2014/12/01 · arxiv updated 2014/12/02
The study is devoted to a problem of electron-induced contaminant to X-ray and gamma-ray astrophysical measurements on board low-orbiting satellites. We analyzed enhancements of electron fluxes in energy range 100 - 300 keV observed at equatorial and low latitudes by a fleet of NOAA/POES low-orbiting satellites over the time period from 2003 to 2005. It was found that 100-300 keV electron fluxes in the forbidden zone below the inner radiation belt enhanced by several orders of magnitude during geomagnetic storms and/or under strong compressions of the magnetosphere. The enhancements are related to high substorm activity and occurred at any local time. Intense fluxes of the energetic electrons in the forbidden zone can be considered as an essential contaminant to X-ray and gamma-ray measurements at low-latitude and low-altitude orbits.