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Chemical composition of the interstellar gas: X-ray determinations (1972)

Brown, Robert L.

Springer

Astrophysics and space science 18 (1972), S. 329-333

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ISSN: 1572-946X

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract Noting that observations of X-ray attenuation at theK-shell ionization edge for many elements provide, prospectively, the least ambiguous means for establishing the chemical composition of the interstellar gas, we have evaluated the expected spectral discontinuities for all atoms from carbon to sodium and have tabulated the results. It is shown that with X-ray detectors of reasonable energy resolution and sensitivity theK-shell edges of C, N, O, Ne, Si, S, A and Mg are potentially observable if the ‘cosmic’ abundances are representative of the general interstellar environment.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00645397

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