Stark Broadening Parameters for Neutral Oxygen Spectral Lines
Tóm tắt
Stark broadening parameters for nine neutral oxygen (O I) lines have been determined within the impact approximation and the semiclassical perturbation method. The atomic data have been taken from the TOPbase and NIST atomic databases. The electron and proton Stark widths and shifts and ion broadening parameter values for these O I lines have been calculated for electron density of 10 16 cm −3 and for 4 different electron temperatures in the range of 5000 K to 40000 K. These Stark broadening parameters are compared with our previous results (Ben Nessib, N. et al.
1996, Physica Scripta, 54, 603–613), where we calculated Stark broadening parameters for only four O I spectral lines and where Stark widths and shifts were compared with experimental and theoretical data available in the literature. In the present paper, we have also compared our results with the Griem’s book (Griem, H. R. 1974, Spectral line broadening by plasmas) and VALD (Ryabchikova, T. et al.
2015, Physica Scripta, 90, 054005) values.
Tài liệu tham khảo
Ben Nessib, N., Ben Lakhdar, Z., Sahal-Bréchot, S. 1996, Physica Scripta, 54, 608–613.
Burke, P. G., Seaton, M. J. 1971, Meth. Comput. Phys., 10, 1–80.
Burke, P. G., Hibbert, A., Robb, W. D. 1971, J. Phys. B, 4, 153–161.
Cowan, R. D. 1981, Theory of Atomic Structure and Spectra (Berkeley: Univ. California Press).
Cunto, W., Mendoza, C., Ochsenbein, F., Zeippen, C. J. 1993, Astron. Astrophys., 275, L5. Available: http://cdsweb.u-strasbg.fr/topbase/topbase.html [2015, May 24].
Dubernet, M. L., Boudon, V., Culhane, J. L. . et al. 2010, JQSRT, 111, 2151–2159. http://www.vamdc.eu.
Griem, H. R. 1974, Spectral line broadening by plasmas, Academic Press Inc., New York, USA and London, UK.
Kramida, A., Ralchenko, Yu., Reader, J., NIST ASD Team 2014, NIST Atomic Spectra Database (ver. 5.2), [Online]. Available: http://physics.nist.gov/asd [2015, May 24]. National Institute of Standards and Technology, Gaithersburg, MD.
Rixon, G., Dubernet, M. L., Piskunov, N. et al. 2011, VII International Conference on Atomic and Molecular Data and their Applications – ICAMDATA-2010 (AIP Conf. Proc. 1344, 107–115) (New York: Melville).
Ryabchikova, T., Piskunov, N., Kurucz, R. L., Stempels, H. C., Heiter, U., Pakhomov, Yu. Barklem, P. S. 2015, Physica Scripta, 90 (1–4), 054005.
Sahal-Bréchot, S. 1969, Astron. Astrophys., 1, 91–123.
Sahal-Bréchot, S. 1969, Astron. Astrophys., 2, 322–354.
Sahal-Bréchot, S. 1974, Astron. Astrophys., 35, 319–321.
Sahal-Bréchot, S., Dimitrijević, M. S. Ben Nessib, N. 2014, Atoms, 2, 225–252.
Sahal-Bréchot, S., Dimitrijević, M. S. Moreau, N. 2015, STARK-B database [online]. Available: http://stark-b.obspm.fr [May 19, 2015]. Observatory of Paris, LERMA and Astronomical Observatory of Belgrade.
Seaton, M. J. 1962, Proc. Phys. Soc., 79, 1105–1117.
Vennes, S., Kawka, A. Nemeth, P. 2011, MNRAS, 413, 2545–2553.