low temperature Ne 2, 3 collision strengths (trac #361)

reported by: @CloudyLex

Fine-structure electron-impact excitation of Ne+ and Ne2+ for low temperature astrophysical plasmas

Qianxia Wang, S. D. Loch, Y. Li, M. S. Pindzola, R. Cumbee, P. Stancil, B. 
McLaughlin, C. P. Ballance

(Submitted on 11 Jul 2016)

Collision strengths for electron-impact of fine-structure level excitation within the 
ground term of Ne+ and Ne2+ are calculated using the Breit-Pauli, Intermediate 
Coupling Frame Transformation, and DARC R-matrix methods. Maxwellian-
averaged effective collision strengths and excitation rate coefficient qij are 
presented for each. The application of the current calculations is to very low 
temperature astrophysical plasmas, thus we examine the sensitivity of the 
effective collision strengths down to 10 K. The use of the various theoretical 
methods allows us to place estimated uncertainties on the recommended 
effective collision strengths. We also investigate the sensitivity of the collision 
strengths to the resonance positions and underlying atomic structure. Good 
agreement is found with previous R-matrix calculations at higher temperature.

Subjects:   Atomic Physics (physics.atom-ph)

Cite as:    arXiv:1607.03158 [physics.atom-ph]
    (or arXiv:1607.03158v1 [physics.atom-ph] for this version)

Submission history
From: Qianxia Wang Qianxia Wang [view email] 
[v1] Mon, 11 Jul 2016 20:37:25 GMT (219kb,D)

these to not join continuously with our current high-T CS data

Migrated from https://www.nublado.org/ticket/361

{
    "status": "new",
    "changetime": "2019-02-04T13:02:49Z",
    "_ts": "1549285369825011",
    "description": "{{{\nFine-structure electron-impact excitation of Ne+ and Ne2+ for low temperature astrophysical plasmas\n\nQianxia Wang, S. D. Loch, Y. Li, M. S. Pindzola, R. Cumbee, P. Stancil, B. \nMcLaughlin, C. P. Ballance\n\n(Submitted on 11 Jul 2016)\n\nCollision strengths for electron-impact of fine-structure level excitation within the \nground term of Ne+ and Ne2+ are calculated using the Breit-Pauli, Intermediate \nCoupling Frame Transformation, and DARC R-matrix methods. Maxwellian-\naveraged effective collision strengths and excitation rate coefficient qij are \npresented for each. The application of the current calculations is to very low \ntemperature astrophysical plasmas, thus we examine the sensitivity of the \neffective collision strengths down to 10 K. The use of the various theoretical \nmethods allows us to place estimated uncertainties on the recommended \neffective collision strengths. We also investigate the sensitivity of the collision \nstrengths to the resonance positions and underlying atomic structure. Good \nagreement is found with previous R-matrix calculations at higher temperature.\n\nSubjects:\tAtomic Physics (physics.atom-ph)\n\nCite as:\tarXiv:1607.03158 [physics.atom-ph]\n \t(or arXiv:1607.03158v1 [physics.atom-ph] for this version)\n\nSubmission history\nFrom: Qianxia Wang Qianxia Wang [view email] \n[v1] Mon, 11 Jul 2016 20:37:25 GMT (219kb,D)\n}}}\n\nthese to not join continuously with our current high-T CS data",
    "reporter": "gary",
    "cc": "",
    "resolution": "",
    "time": "2016-07-31T18:26:33Z",
    "component": "atomic/molecular data base",
    "summary": "low temperature Ne 2, 3 collision strengths",
    "priority": "good to do",
    "keywords": "",
    "version": "trunk",
    "milestone": "no milestone",
    "owner": "nobody",
    "type": "enhancement"
}

cloudy-astrophysics / bug-tracker-migration-test

low temperature Ne 2, 3 collision strengths (trac #361) #363