Local intersteller medium

Details Local intersteller medium Local intersteller medium

Nov 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987ap%26ss.138..229b&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 138, no. 2, Nov. 1987, p. 229-302.

Astronomy and Astrophysics

Astronomy

51

Abundance, Astronomical Spectroscopy, Interstellar Matter, Local Group (Astronomy), Spectrum Analysis, Molecular Clouds, Radio Spectra, Solar Neighborhood, Ultraviolet Spectra, Visible Spectrum, X Ray Spectra

Scientific paper

This paper reviews and analyses various observational data about the local interstellar medium (LISM) - a volume with a radius of about 200 pc near the Sun. There are collected radio, IR, optical, UV, and X-ray observations of the ISM and data on the Sco-Cen association. All available information confirms Weaver's (1979) conclusions that the Sun is located near an edge of a giant cavern with a radius of about 180 pc and the cavern center coincides with the Sco-Cen associated center. Several arguments are given to show that the bright spots of soft X-rays (130 - 284 eV) near the galactic poles are produced by an interaction of stellar winds with outer edge of the local cloud near the ends of `the patch of polarization'. Lyman continuum radiation from Sco-Cen stars was shown to be probably the main source of ionization of extended H II regions of low density in the LISM.

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