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Inhomogeneity in the Local ISM and Its Relation to the Heliosphere
Redfield, Seth; Linsky, Jeffrey; Ryder, Diana +1 more
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 heliosphere outside of the heliopause are determined by the surrounding environment - now the outer region of the Local Interstellar Cloud (LIC). The temperat…
Backscattered Solar Lyman-α Emission as a Tool for the Heliospheric Boundary Exploration
Bertaux, Jean-Loup; Lallement, Rosine; Quémerais, Eric +4 more
This review summarizes our current understanding of the outer heliosphere and local interstellar medium (LISM) inferred from observations and modeling of interplanetary Lyman-α emission. The emission is produced by solar Lyman-α photons (121.567 nm) backscattered by interstellar H atoms inflowing to the heliosphere from the LISM. Studies of Lyman-…