Influence of ion dynamics on the width and shift of isolated He i lines in plasmas. II

Ion contribution to the astrophysical important 388.86, 471.32 and 501.56 nm He I spectral lines broadening

“…2-4 one can conclude that the Griem (1974) W t values lie above all experimental and theoretical data except the results from experiments reported by Purić et al (1970), Mijatović et al (1995) and Kelleher (1981). This is clear in the case of the 667.82 nm line at higher electron temperatures (see Fig.…”

“…Theoretical W t values presented by Bassalo et al (1982) in pm within ±12% accuracy), static ion broadening parameter (A exp , dimensionless within ±15% accuracy) and ion dynamic coefficient (D exp , dimensionless within ±20% accuracy) at a given electron temperature (T in 10 3 K) and electron density (N in 10 22 m −3 ). Ref presents the values given in this work (Tw) and those used from other authors: K, Kelleher (1981); B, Berg et al (1962); KK, Kobilarov et al (1989); RS, Roder & Stampa (1964); PL, Purić et al (1970); BG, Büscher et al (1995); P, Pérez et al (1991); M, Mijatović et al (1995); Ga, Gauthier et al (1981); VK, Vujičić & Kobilarov (1988). The index G, BCW and DSB denote theoretical data taken from Griem (1974), Bassalo et al (1982) and Dimitrijević & Sahal-Bréchot (1990), respectively at a given T and N. 3%-18% with the best agreement for the 447.15 nm line (see Fig.…”

“…Ratios of the experimental total Stark FWHM (W exp t ) to the various theoretical (W th t ) predictions vs. electron temperature for λ = 667.82 nm. , ♦, ∇, , and represent our experimental data and those from Gauthier et al (1981), Mijatović et al (1995), Pérez et al (1991), Kelleher (1981), and Vujičić & Kobilarov (1988), respectively. Filled, empty and half divided symbols represent the ratios related to the theories taken from Griem (1974), Bassalo et al (1982) and Dimitrijević & Sahal-Bréchot (1990), respectively.…”

Stark broadening of lines from transition between statesn = 3 ton = 2 in neutral helium

“…The other two broadening mechanisms are negligible (see Table 5). From this analysis we A135, page 8 of 13 He I 3889 He I 7065 (b) Wulff 1958Berg et al 1962Bötticher et al 1963Lincke 1964Greig & Jones 1970Morris and Cooper 1973Einfeld & Sauerbrey 1975Chiang et al 1977Soltwisch & Kusch 1979Kelleher 1981Pérez et al 1991Mijatović et al 1995Djeniže 1995Milosavljević & Djeniže 2002b Griem 1974 (at T = 20000K) Bassalo et al 1982Sahal-Bréchot et al 2013 This …”

“…For the comparison, we used theoretical (Griem 1974;Bassalo et al 1982;Sahal-Bréchot et al 2013) and experimental data (Wulff 1958;Berg et al 1962;Bötticher et al 1963;Lincke 1964;Greig & Jones 1970;Kusch 1971; Vujičić et al 1989;Kobilarov et al 1989;Pérez et al 1991Pérez et al , 1995Büscher et al 1995;Djeniže et al 1995;Mijatović et al 1995;Milosavljević & Djeniže 2002a,b, 2003Pérez et al 2003;Gao et al 2008). The experimental data were obtained form various plasma sources with different plasma conditions and with different plasma diagnostic methods.…”