Title: Interstellar neutral helium in the heliosphere from IBEX observations. VI. The He+ density and the ionization state in the Very Local Interstellar Matter
Authors: Bzowski, M., Czechowski, A., Frisch, P.C., Fuselier, S.A., Galli, A., Grygorczuk, J., Heerikhuisen, J., Kubiak, M.A., Kucharek, H., McComas, D.J., Möbius, E., Schwadron, N.A., Slavin, J., Sokół, J.M., Swaczyna, P., Wurz, P., Zirnstein, E.J.
Journal: The Astrophysical Journal
Publication type: article
DOI: 10.3847/1538-4357/ab3462