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Astron. Astrophys. 357, 1137-1142 (2000)

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Experimental transition probabilities of several NeI lines

J.A. del Val, J.A. Aparicio, V. González and S. Mar

Departamento de Optica, Facultad de Ciencias, Universidad de Valladolid, 47071 Valladolid, Spain

Received 8 November 1999 / Accepted 28 February 2000


This work reports a collection of 28 transition probabilities of lines in the spectral region 590-815 nm, corresponding to the most intense Ne I transitions (3p-3s, 3d-3p), all measured in an emission experiment. Relative intensity measurements have been made on a pulsed discharge lamp and the absolute [FORMULA] values have been obtained by using an extensive set of data taken from the literature. The electron density has been determined by one-wavelength interferometry and ranges from 0.1 to [FORMULA] in the plasma. The NeI excitation temperature [FORMULA] has been determined from the Boltzmann-plot of the lines and also estimated by the Saha law.

Key words: atomic data – line: profiles – methods: laboratory

Present address: Departamento de Física Aplicada, Universidad de Salamanca, E. Politécnica Superior 05071 Avila, Spain

Send offprint requests to: J.A. Aparicio

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© European Southern Observatory (ESO) 2000

Online publication: June 5, 2000