Abstract
The distribution, kinematics and physical properties of the interstellar matter surrounding the Sun can be inferred from ground-based and UV spectroscopic observations. On a 200 pc scale the local interstellar matter appears inhomogeneous and asymmetric. Although it generally flows towards the lower density region, it is composed of numerous small components a few parsecs in size with slightly different velocities. On a smaller scale the extent and the nature of the Local Cloud which flows over the Sun are discussed based on HST-GHRS observations of nearby stars.
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Gry, C. Local clouds: Distribution, density and kinematics through ground-based and HST spectroscopy. Space Sci Rev 78, 239–246 (1996). https://doi.org/10.1007/BF00170810
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DOI: https://doi.org/10.1007/BF00170810