straggling function

Qin, M., Hudson, M., Kress, B., Selesnick, R., Engel, M., Li, Z., & Shen, X. (2019). Investigation of Solar Proton Access into the inner magnetosphere on 11 September 2017. Journal Of Geophysical Research: Space Physics. http://doi.org/10.1029/2018JA026380 (Original work published April 2019)