Stark Broadening of A III and AIV Lines

Abstract

The half-widths of five A III and two A IV lines have been measured in a pulsed arc operated in an argon-nitrogen mixture. Electron densities of 3.8 to 8.0 × 10 16 cm

Stark halfwidth trends along the homologous sequence of doubly ionized noble gases

“…7b, but the dispersion of the results is within ±14%. The same dispersion appears for the two data from Platiša et al (1975) for Ar III, while the results from Djeniže et al (1996) are within ±20%. The Kr III results from Milosavljević et al (2000) are within ±13%.…”

“…To carry out an individual analysis of data of the Ne III to Xe III lines, it is more convenient to exclude the data sets showing a large difference compared to other results, and to calculated data. For Ar III, these results come from Platiša et al (1975), for Kr III from Ahmad et al (1998) and for Xe III from Seidel et al (2001). In this case, the dispersion of the experimental data from all authors is about ±22% for the Ne III lines, ±19% for the Ar III lines, ±6% for the Kr III and ±13% for the Xe III lines.…”

“…This agrees with Wiese & Konjević (1982), if we take into account the experimental errors (see Table 1). Only the data from Platiša et al (1975), for the Ar III lines show a larger variation: ±19% around the average halfwidth value. To carry out an individual analysis of data of the Ne III to Xe III lines, it is more convenient to exclude the data sets showing a large difference compared to other results, and to calculated data.…”

“…3) are taken from Platiša et al (1975), Konjević & Pittman (1987), Purić et al (1988), Kobilarov & Konjević (1990), Djeniže et al (1996), Bukvić et al (2008) and Djurović et al (2011). Results for Kr III (Fig.…”

“…Owing to these similarities, a gradual increase of the spectral line halfwidths, i.e., the systematic trend should be expected in these cases. For the analysis of (n − 1)d − np and ns−np transitions, the following references are available: Platiša et al (1975), Konjević & Pittman (1987), Purić et al (1988), Kobilarov & Konjević (1990), Uzelac et al (1993), Djeniže et al (1996), Iriarte et al (1997), Romeo y Bidegain et al (1998), Ahmad et al (1998), Blagojević et al (2000), Milosavljević et al (2000Milosavljević et al ( , 2001, Seidel et al (2001), Peláez et al (2006), Bukvić et al (2008), Peláez et al (2009Peláez et al ( ),Ćirišan et al (2011 and Djurović et al (2011).…”