Observations of MG 1 and MG 2 in the local ISM

Details Observations of MG 1 and MG 2 in the local ISM Observations of MG 1 and MG 2 in the local ISM

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984nascp2349..200b&link_type=abstract

In its Future of Ultraviolet Astronomy Based on Six Years of IUE Res. p 200-203 (SEE N85-20961 11-89)

Astronomy and Astrophysics

Astronomy

7

Interstellar Chemistry, Interstellar Gas, Magnesium, Ultraviolet Astronomy, Ionization, Iue, Oao 3, Signal To Noise Ratios, Spaceborne Astronomy

Scientific paper

High quality IUE data combined with that acquired by Copernicus were used to study the Mg II/MG I ionization balance in the local interstellar medium within 50 pc of the Sun. The high resolution, high signal to noise Copernicus data reveal, in three stars, weak interstellar Mg I features at 2852. High quality IUE data for interstellar Mg II near 2800 A were acquired by coadding high dispersion estimates and incorporating an observing technique that minimized the effects of camera fixed-pattern noise. The results are in agreement with the local cloud model as presented previously by Bruhweiler. The Mg I and Mg II column densities are used to place constraints on the physical conditions of the interstellar gas near the Sun.

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