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Record Details

Record 64 of 9712
Dielectronic recombination as a function of electric field strength
External Online Source: doi:10.1086/171863
Author and Affiliation:
Reisenfeld, Daniel B.(Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, United States)
Abstract: Dielectronic recombination (DR) is the dominant recombination mechanism at coronal temperatures and densities. We present a procedure for calculating DR rate coefficients as a function of electric field strength and apply this method to carbon ions. We focus on the competing effects of enhancement by plasma microfields and rate decrease through collisional excitation and ionization. We find that, in the case of C(3+), a significant rate enhancement results, leading to a reinterpretation of C IV emission-line intensities in the sun and late-type stars. We further consider how macroscopic electric fields, in particular motional electric fields, can affect DR rate coefficients, demonstrating dramatic rate increases for a number of the carbon ions.
Publication Date: Oct 10, 1992
Document ID:
19930026612
(Acquired Dec 28, 1995)
Accession Number: 93A10609
Subject Category: SOLAR PHYSICS
Document Type: Journal Article
Publication Information: Astrophysical Journal, Part 1 (ISSN 0004-637X); 398; 1; p. 386-393.
Publisher Information: United States
Contract/Grant/Task Num: NAGW-1687; NAGW-528
Financial Sponsor: NASA; United States
Organization Source: NASA; Washington, DC, United States
Description: 8p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: ELECTRIC FIELDS; ELECTRON RECOMBINATION; FIELD STRENGTH; SOLAR CORONA; SOLAR MAGNETIC FIELD; CARBON; ELECTRON SCATTERING; MOLECULAR IONS; SOLAR TEMPERATURE; STARK EFFECT
Imprint And Other Notes: Astrophysical Journal, Part 1 vol. 398, no. 1 p. 386-393. Oct. 10, 1992
Availability Source: Other Sources
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