Alpha Particle Content in the Solar Wind as Observed by the SPAN-Ion Instrument on Parker Solar Probe

Michael McManus1, Davin E Larson2, Roberto Livi1, Ali Rahmati3, Phyllis L Whittlesey1, Jennifer L Verniero3, Trevor A Bowen1, Kristopher G. Klein4, Benjamin D G Chandran5, Justin Christophe Kasper6, Anthony W Case7, Kelly E Korreck8, Michael Louis Stevens9, Stuart D Bale10, Marc Pulupa10, David Malaspina11, John W Bonnell10, Peter Harvey12, Keith Goetz13, Thierry Dudok de Wit14 and Robert J. MacDowall15, (1)University of California Berkeley, Berkeley, CA, United States, (2)Space Sciences Laboratory, Berkeley, CA, United States, (3)University of California Berkeley, Space Sciences Laboratory, Berkeley, CA, United States, (4)University of Arizona, Lunar and Planetary Laboratory, Tucson, AZ, United States, (5)University of New Hampshire, Durham, NH, United States, (6)University of Michigan, Ann Arbor, MI, United States, (7)Smithsonian Astrophysical Observatory, Cambridge, MA, United States, (8)Smithsonian Observatory, Cambridge, MA, United States, (9)Smithsonian Astrophysics Observatory, Cambridge, MA, United States, (10)University of California, Berkeley, Space Sciences Laboratory, Berkeley, CA, United States, (11)University of Colorado, Boulder, Laboratory for Atmospheric and Space Physics, Boulder, CO, United States, (12)Space Sciences Laboratory, Berkeley, United States, (13)University of Minnesota, Minneapolis, MN, United States, (14)LPC2E, CNRS and University of Orléans, Orléans, France, (15)NASA Goddard SFC, Greenbelt, MD, United States