Change search
ReferencesLink to record
Permanent link

Direct link
Electron-impact ionization of Be-like CIII, NIV, and OV
Show others and affiliations
2008 (English)In: Astrophysical Journal Supplement Series, ISSN 0067-0049, E-ISSN 1538-4365, Vol. 175, no 2, 543-556 p.Article in journal (Refereed) Published
Abstract [en]

We present recent measurements of absolute electron-impact ionization cross sections for Be-like C III, N IV, and O V forming Li- like C IV, N V, and O VI. The measurements were taken using the crossed-beams apparatus at Oak Ridge National Laboratory. A gas cell beam attenuation method was used to independently measure the metastable fractions present in the ion beams. The measured ionization cross sections were compared with calculations using the R-matrix with pseudostates and distorted-wave theoretical methods. Best agreement is found with the R-matrix with pseudostates cross sections results that account for the metastable fractions inferred from the gas attenuation measurements. We present a set of recommended rate coefficients for electron-impact single ionization from the ground state and metastable term of each ion.

Place, publisher, year, edition, pages
2008. Vol. 175, no 2, 543-556 p.
Keyword [en]
atomic data, atomic processes, methods : laboratory
National Category
Physical Sciences
URN: urn:nbn:se:su:diva-58522DOI: 10.1086/525256ISI: 000257759300011OAI: diva2:420677
authorCount :12Available from: 2011-06-03 Created: 2011-06-03 Last updated: 2011-06-03Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Thomas, R. D.Zhaunerchyk, Vitali
By organisation
Department of Physics
In the same journal
Astrophysical Journal Supplement Series
Physical Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 24 hits
ReferencesLink to record
Permanent link

Direct link