Very Local Interstellar Medium Revealed by a Complete Solar Cycle of Interstellar Neutral Helium Observations with IBEX

  title={Very Local Interstellar Medium Revealed by a Complete Solar Cycle of Interstellar Neutral Helium Observations with IBEX},
  author={Paweł Swaczyna and Marzena A. Kubiak and Maciej Bzowski and J. Bower and Stephen Anthony Fuselier and A. Galli and David Heirtzler and D. J. Mccomas and Eberhard M{\"o}bius and Fatemeh Rahmanifard and Nathan A. Schwadron},
  journal={The Astrophysical Journal Supplement Series},
The IBEX-Lo instrument on board the Interstellar Boundary Explorer (IBEX) mission samples interstellar neutral (ISN) helium atoms penetrating the heliosphere from the very local interstellar medium (VLISM). In this study, we analyze the IBEX-Lo ISN helium observations covering a complete solar cycle, from 2009 through 2020 using a comprehensive uncertainty analysis including statistical and systematic sources. We employ the Warsaw Test Particle Model to simulate ISN helium fluxes at IBEX, which… 

One Solar Cycle of Heliosphere Observations with the Interstellar Boundary Explorer: Energetic Neutral Hydrogen Atoms Observed with IBEX-Lo from 10 eV to 2 keV

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 Heliosphere and Local Interstellar Medium from Neutral Atom Observations at Energies Below 10 keV

As the heliosphere moves through the surrounding interstellar medium, a fraction of the interstellar neutral helium, hydrogen, and heavier species crossing the heliopause make it to the inner

Inhomogeneity in the Local ISM and Its Relation to the Heliosphere

This paper reviews past research and new studies underway of the local interstellar environment and its changing influence on the heliosphere. The size, shape, and physical properties of the

Absolute beam monitor: A novel laboratory device for neutral beam calibration.

Instruments recording Energetic Neutral Atoms (ENAs) for space applications require thorough laboratory calibration in a dedicated test facility providing a neutral atom beam. Accurate knowledge of

Mixing Interstellar Clouds Surrounding the Sun

On its journey through the Galaxy, the Sun passes through diverse regions of the interstellar medium. High-resolution spectroscopic measurements of interstellar absorption lines in spectra of nearby



Cross-Calibration of Far UV Spectra of Solar System Objects and the Heliosphere

Distribution of interstellar H atoms in the heliosphere and backscattered solar Lyman-alpha.- Solar parameters for modeling interplanetary background.- 30 Years of Interplanetary Background Data: A

Collisions of Carbon and

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Fuselier https:/ /orcid

    These files include the HB data from IBEX-Lo in all 60 spin bins separated into 512 spin blocks. The begin and end times of each block are provided

    • dat-culled ISN data collected on orbit or arc XXXXx in ESA step e

    dat-orbit-accumulated IBEX-Lo ISN helium data. The files include all corrections and background estimation used in this study

      dat-list of periods during the ISN seasons that are not affected by the loss of the spin pulse synchronization

        dat-list of IBEX-Lo spin axis pointing for each orbit/arc