new Ni IV data set (trac #418)

[cloudy-bot]

reported by: @CloudyLex

Title:	
Spectroscopy of low-ionized iron-peak elements. Electron-impact excitation of Ni$^{3+}$ and 
photoionisation of Ni$^{2+}$
Authors:	
Fernández-Menchero, Luis; Smyth, Ryan T.; Ramsbottom, Catherine A.; Ballance, Connor P.
Publication:	
eprint arXiv:1809.05472
Publication Date:	
09/2018
Origin:	
ARXIV
Keywords:	
Astrophysics - Instrumentation and Methods for Astrophysics, Physics - Atomic Physics
Comment:	
12 pages, 7 figures, 5 tables
Bibliographic Code:	
2018arXiv180905472F
Abstract
The spectra from Fe-peak elements may be used to determine the temperature and density of various 
astrophysical objects. Determination of these quantities is underpinned by the accuracy and the 
comprehensiveness of the underlying atomic structure and collisional calculations. In the following paper, 
we shall focus specifically on Ni IV lines associated with transitions amongst several low-lying levels. We 
shall employ modified versions of the parallel Dirac R-matrix codes, considering both electron-impact 
excitation of Ni$^{3+}$ and the photoionisation of both the ground and excited states of Ni$^{2+}$. We 
produce high-quality data sets for both processes, and using these data, we calculate line ratios relevant 
for plasma diagnostics of temperature and density.

Migrated from https://www.nublado.org/ticket/418

{
    "status": "new",
    "changetime": "2019-02-04T13:02:49Z",
    "_ts": "1549285369825011",
    "description": "{{{\nTitle:\t\nSpectroscopy of low-ionized iron-peak elements. Electron-impact excitation of Ni$^{3+}$ and \nphotoionisation of Ni$^{2+}$\nAuthors:\t\nFern\u00e1ndez-Menchero, Luis; Smyth, Ryan T.; Ramsbottom, Catherine A.; Ballance, Connor P.\nPublication:\t\neprint arXiv:1809.05472\nPublication Date:\t\n09/2018\nOrigin:\t\nARXIV\nKeywords:\t\nAstrophysics - Instrumentation and Methods for Astrophysics, Physics - Atomic Physics\nComment:\t\n12 pages, 7 figures, 5 tables\nBibliographic Code:\t\n2018arXiv180905472F\nAbstract\nThe spectra from Fe-peak elements may be used to determine the temperature and density of various \nastrophysical objects. Determination of these quantities is underpinned by the accuracy and the \ncomprehensiveness of the underlying atomic structure and collisional calculations. In the following paper, \nwe shall focus specifically on Ni IV lines associated with transitions amongst several low-lying levels. We \nshall employ modified versions of the parallel Dirac R-matrix codes, considering both electron-impact \nexcitation of Ni$^{3+}$ and the photoionisation of both the ground and excited states of Ni$^{2+}$. We \nproduce high-quality data sets for both processes, and using these data, we calculate line ratios relevant \nfor plasma diagnostics of temperature and density.\n}}}",
    "reporter": "gary",
    "cc": "",
    "resolution": "",
    "time": "2018-09-17T15:37:30Z",
    "component": "atomic/molecular data base",
    "summary": "new Ni IV data set",
    "priority": "good to do",
    "keywords": "",
    "version": "",
    "milestone": "no milestone",
    "owner": "nobody",
    "type": "enhancement"
}

[cloudy-bot]

@peter-van-hoof-noaccount changed milestone from "" to "no milestone"