Distribution and energy spectrum of diffuse soft X-rays

Details Distribution and energy spectrum of diffuse soft X-rays Distribution and energy spectrum of diffuse soft X-rays

Jan 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978a%26a....62...21h&link_type=abstract

Astronomy and Astrophysics, vol. 62, no. 1-2, Jan. 1978, p. 21-28.

Astronomy and Astrophysics

Astronomy

51

Diffuse Radiation, Energy Spectra, Interstellar Radiation, X Ray Astronomy, X Ray Spectra, Astronomical Maps, Background Radiation, Emission Spectra, Supernova Remnants, Thermal Emission, Thermal Plasmas

Scientific paper

The diffuse component of soft X-rays was observed along galactic longitudes 150 and 330 deg. The energy spectrum obtained after subtraction of the general extragalactic component is essentially the same except in the regions inside Loop I and crossing Loop II. The spectrum is fitted with thermal emission spectra of temperatures 0.13 keV for the cosmic abundances and 0.1 keV for the abundance with depletion of metallic elements, both without appreciable interstellar absorption. The X-ray emission measure varies over the ranges from 0.006 to 0.012 and from 0.016 to 0.032 cm (to the -6th power) pc in the respective cases. The result suggests that a majority of galactic diffuse soft X-rays is emitted from a hot plasma surrounding the solar system.

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