Search: onr:"swepub:oai:DiVA.org:su-75372" >
Electron-ion recomb...
Electron-ion recombination rate coefficients for C II forming C I
-
- Ali, Safdar (author)
- Stockholms universitet,Fysikum,Univ Stockholm, Dept Phys, S-10691 Stockholm, Sweden
-
- Orban, Istvan (author)
- Stockholms universitet,Fysikum,Univ Stockholm, Dept Phys, S-10691 Stockholm, Sweden
-
- Mahmood, Sultan, 1969- (author)
- Stockholms universitet,Fysikum,Univ Stockholm, Dept Phys, S-10691 Stockholm, Sweden
-
show more...
-
- Altun, Zikri (author)
- Marmara Univ, Dept Phys, TR-81040 Istanbul, Turkey
-
- Glans, Peter (author)
- Mittuniversitetet,Institutionen för tillämpad naturvetenskap och design (-2013)
-
- Schuch, Reinhold (author)
- Stockholms universitet,Fysikum,Univ Stockholm, Dept Phys, S-10691 Stockholm, Sweden
-
show less...
-
(creator_code:org_t)
- 2012
- 2012
- English.
-
In: Astrophysical Journal. - 0004-637X .- 1538-4357. ; 753:2, s. 132-
- Related links:
-
https://urn.kb.se/re...
-
show more...
-
https://doi.org/10.1...
-
https://urn.kb.se/re...
-
show less...
Abstract
Subject headings
Close
- We have determined absolute dielectronic recombination rate coefficients for C II, using the CRYRING heavy-ions storage ring. The resonances due to 2s-2p (∆n = 0) core excitations are detected in the center-of-mass energy range of 0-15 eV. The experimental results are compared with intermediate coupling AUTOSTRUCTURE calculations. Plasma rate coefficients are obtained from the DR spectrum by convoluting it with a Maxwell-Boltzmann energy distribution for temperatures in the range of 103-106 K. The derived temperature dependent plasma recombination rate coefficients are presented graphically to compare with the theoretical data available in literature and parameterized by using a fit formula for convenient use in plasma modelling codes. In the temperature range of 103-2×104 K, our experimental results show that previous calculations severely underestimate the plasma rate coefficients and also our AUTOSTRUCTURE calculation does not reproduce the experimental plasma rate coefficients well. Above 2×104 K the agreement between the experimental and theoretical rate coefficients is much better, and the deviations are smaller than the estimated uncertainties.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Keyword
- atomic data
- atomic processes
- plasmas
- Physics
- fysik
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database