Abstract
AN attempt is first made to estimate the density, temperature and state of ionisation of gaseous matter diffused through the stellar system. It is concluded that the density is about 10-24 gm./cm.3, temperature 10,000°-20,000°, and that atoms are ionised down to 15–20 volts.
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Diffuse Matter in Interstellar Space1. Nature 117, 770–771 (1926). https://doi.org/10.1038/117770b0
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DOI: https://doi.org/10.1038/117770b0