The local interstellar medium

Details The local interstellar medium The local interstellar medium

Mar 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...254...82c&link_type=abstract

Astrophysical Journal, Part 1, vol. 254, Mar. 1, 1982, p. 82-87. NSF-NASA-supported research.

Astronomy and Astrophysics

Astrophysics

133

Astronomical Spectroscopy, H Alpha Line, Interstellar Gas, Lyman Alpha Radiation, Solar Spectra, Wind Velocity, B Stars, Gas Density, Gas Temperature, Helium, O Stars, Stellar Winds, Supernovae

Scientific paper

Analysis of the velocities of optical interstellar lines shows that the sun is immersed in a coherently moving local interstellar medium whose velocity vector agrees with that of the interstellar wind observed through backscatter of solar H Ly-alpha and He lambda 584 photons. The local interstellar medium consists of both cool clouds and warm intercloud medium gas, has a mass of perhaps approximately 30 solar masses, does not have severe depletion of trace elements from the gas phase, and appears to be material which has been shocked and accelerated by stellar winds and supernovae associated with the Sco-Oph OB association.

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