Limits on the local fluff from IUE MG I data

Details Limits on the local fluff from IUE MG I data Limits on the local fluff from IUE MG I data

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.263..491f&link_type=abstract

In ESA Proceedings of an International Symposium on New Insights in Astrophysics. Eight Years of UV Astronomy with IUE p 491-49

Astronomy and Astrophysics

Astrophysics

1

Interstellar Chemistry, Interstellar Matter, Iue, Magnesium, Ultraviolet Spectroscopy, Electron Density Profiles, Interstellar Space, Line Spectra

Scientific paper

The known properties of the local fluff are combined with sensitive IUE observations of the λ2852 line of Mg I to show that nearby gas has an electron density ne ⪉ 0.003 cm-3. If no other cloud is present, the geometry of the fluff in the direction of a background target star showing an equivalent width, W(mÅ), for the Mg I λ2852 line can be estimated from the relation W(λ2852)/L ⪉ ne×350 where L(pc) is the cloud extent and ne(cm-3) is the electron density in the cloud.

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