Opened 3 years ago

Last modified 3 years ago

#321 new enhancement

transition probabilities for noble gas first ion FS lines

Reported by: Gary J. Ferland Owned by: nobody
Priority: good to do Milestone:
Component: atomic/molecular data base Version: trunk
Keywords: Cc:

Description

Title:	
Forbidden transition properties in the ground-state configurations of singly ionized noble gas atoms for stellar and interstellar media
Authors:	
Nandy, D. K.; Sahoo, B. K.
Affiliation:	
AA(Theoretical Physics Division, Physical Research Laboratory, Navrangpura, Ahmedabad-380009, India; Indian Institute of Technology Gandhinagar, VGEC Campus, Chandkheda, Ahmedabad-382424, India dillip@prl.res.in), AB(Theoretical Physics Division, Physical Research Laboratory, Navrangpura, Ahmedabad-380009, India; Indian Institute of Technology Gandhinagar, VGEC Campus, Chandkheda, Ahmedabad-382424, India)
Publication:	
Monthly Notices of the Royal Astronomical Society, Volume 450, Issue 1, p.1012-1016 (MNRAS Homepage)
Publication Date:	
06/2015
Origin:	
OUP
Astronomy Keywords:	
atomic data, line: profiles
Abstract Copyright:	
2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society
DOI:	
10.1093/mnras/stv683
Bibliographic Code:	
2015MNRAS.450.1012N

Abstract

High-accuracy calculations of the forbidden transition amplitudes for the np 2P1/2 ? np 2P3/2 transitions with the ground-state principal quantum number n in singly charged inert gas atoms, which are of astrophysical interest, have been carried out using sophisticated relativistic many-body methods. Using these amplitudes, the line strengths, oscillator strengths and transition probabilities of the above transitions and lifetimes of the np 2P1/2 states are estimated precisely. Most of these transition wavelengths lie in the infrared region, while the corresponding Rn II line is the optical one, and they can be observed in the stellar and interstellar media, where the abundances of these ions have already been identified. The above forbidden transitions can also be very useful for astrophysical plasma diagnostics and can guide experiments to measure the lifetimes of the above np 2P1/2 states.

Change History (1)

comment:1 Changed 3 years ago by Gary J. Ferland

values generally with 10% of what we have now

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