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The Determination of Electron Abundances in Interstellar Clouds

descriptionPublicationkeyboard_double_arrow_right Part of book or chapter of book , Article , Other literature type 01 Dec 1979 English Publisher:Springer NetherlandsJournal:Symposium - International Astronomical Union, volume 87, pages 339-340 (issn: 0074-1809,

Authors: Alfred E. Glassgold; Ronald L. Snell; Alwyn Wootten;

doi: 10.1007/978-94-009-9097-5_80 , 10.1017/s0074180900072843 , 10.1086/157569

The Determination of Electron Abundances in Interstellar Clouds

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Abstract

A new method for estimating electron fractions in shielded molecular clouds is proposed on the basis of gas phase ion-molecule reactions which involves measuring the quantity . Applied to existing data, it yields upper limits to Xe in the range from 10−8 to 10−7 for a variety of clouds, warm as well as cool. An upper bound to the cosmic ray ionization rate is also obtained.

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