2010A&A...518A..60P


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.14CEST06:46:50

2010A&A...518A..60P - Astronomy and Astrophysics, volume 518, A60-60 (2010/7-2)

Stark halfwidth trends along the homologous sequence of singly ionized noble gases.

PELAEZ R.J., DJUROVIC S., CIRISAN M., APARICIO J.A. and MAR S.

Abstract (from CDS):

The aim of this work is to analyse experimental Stark halfwidths behaviour for the (3P)ns-(3P)np and (3P)np-(3P)nd transitions along the homologous sequence of single ionized noble gases. This kind of trend analysis can be useful for Stark halfwidths predictions and therefore for spectroscopic diagnostic of astrophysical plasmas. The compilation of Stark halfwidths was done taking into account the measurements developed in the last decades. The experimental results and observed Stark halfwidth trends for different multiplets of ionized noble gases were compared with the modified semiempirical formula (MSE) calculations and other theoretical estimations. The analysis shows that the halfwidths of the spectral lines in all observed multiplets belonging to the same transitions have a similar trend along the homologous sequence. Stark halfwidths of (3P)ns-(3P)np transitions are more or less constant, while those of (3P)np-(3P)nd transitions have a clear increasing slope. A qualitative explanation of the observed Stark halfwidth trends based on the energy level structure is also given.

Abstract Copyright:

Journal keyword(s): plasmas - atomic data - line: profiles

Simbad objects: 7

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Number of rows : 7

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 NGC 253 SyG 00 47 33.134 -25 17 19.68   8.03   6.94 8.1 ~ 2855 2
2 M 42 HII 05 35 17.3 -05 23 28           ~ 3657 0
3 * kap Cnc a2* 09 07 44.8101438776 +10 40 05.527005225 4.70 5.13 5.24     B8IIImnp 351 0
4 * 112 Her SB* 18 52 16.4285169231 +21 25 30.505805624 4.83 5.304 5.393     B9pHg 192 0
5 HD 175640 * 18 56 22.6598248501 -01 47 59.505133114 5.86 6.149 6.196     B9IIIpHgMnEu 132 0
6 HD 178065 SB* 19 07 09.0290270150 +00 38 27.495717066 6.31 6.584 6.538     B9III 90 0
7 * 46 Aql * 19 42 12.8124227379 +12 11 35.738183084   6.234 6.321     B9III 107 0

    Equat.    Gal    SGal    Ecl

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2019.10.14-06:46:50

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