TY - JOUR
T1 - One Solar Cycle of Heliosphere Observations with the Interstellar Boundary Explorer
T2 - Energetic Neutral Hydrogen Atoms Observed with IBEX-Lo from 10 eV to 2 keV
AU - Galli, A.
AU - Wurz, P.
AU - Schwadron, N. A.
AU - Fairchild, K.
AU - Heirtzler, D.
AU - Möbius, E.
AU - Kucharek, H.
AU - Winslow, R.
AU - Bzowski, M.
AU - Kubiak, M. A.
AU - Kowalska-Leszczyńska, I.
AU - Fuselier, S. A.
AU - Sokół, J. M.
AU - Swaczyna, P.
AU - McComas, D. J.
N1 - Publisher Copyright:
© 2022. The Author(s). Published by the American Astronomical Society.
PY - 2022/8/1
Y1 - 2022/8/1
N2 - The Interstellar Boundary Explorer (IBEX) is a NASA satellite in Earth orbit, dedicated to observing both interstellar neutral atoms entering the heliosphere and energetic neutral atoms (ENAs) from the interstellar boundaries from roughly 10 eV to 6 keV. This work presents the averaged maps, energy spectra, and temporal variability of heliospheric ENA intensities measured with the IBEX-Lo instrument at 1 au at energies between 10 eV and 2 keV, covering one entire solar cycle from 2009 through 2019. These results expand the range in time and energy for studying the globally distributed ENA flux and the IBEX Ribbon. The observed ENA intensities exceed model predictions, in particular below 500 eV. Moreover, the ENA intensities between 50-200 eV energy show an unexpected rise and fall around the year 2015 in most sky regions.
AB - The Interstellar Boundary Explorer (IBEX) is a NASA satellite in Earth orbit, dedicated to observing both interstellar neutral atoms entering the heliosphere and energetic neutral atoms (ENAs) from the interstellar boundaries from roughly 10 eV to 6 keV. This work presents the averaged maps, energy spectra, and temporal variability of heliospheric ENA intensities measured with the IBEX-Lo instrument at 1 au at energies between 10 eV and 2 keV, covering one entire solar cycle from 2009 through 2019. These results expand the range in time and energy for studying the globally distributed ENA flux and the IBEX Ribbon. The observed ENA intensities exceed model predictions, in particular below 500 eV. Moreover, the ENA intensities between 50-200 eV energy show an unexpected rise and fall around the year 2015 in most sky regions.
UR - http://www.scopus.com/inward/record.url?scp=85135106220&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85135106220&partnerID=8YFLogxK
U2 - 10.3847/1538-4365/ac69c9
DO - 10.3847/1538-4365/ac69c9
M3 - Article
AN - SCOPUS:85135106220
SN - 0067-0049
VL - 261
JO - Astrophysical Journal, Supplement Series
JF - Astrophysical Journal, Supplement Series
IS - 2
M1 - 18
ER -