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DOI: 10.1051/aas:1998330

Astron. Astrophys. Suppl. Ser. 133, 403-409

Ionization balance for optically thin plasmas: Rate coefficients for all atoms and ions of the elements H to Ni

P. Mazzotta ¹ - G. Mazzitelli ² - S. Colafrancesco ³ - N. Vittorio ¹

Send offprint request: P. Mazzotta

1 - Dipartimento di Fisica, Università di Roma "Tor Vergata'', via della Ricerca Scientifica 1, I-00133 Roma, Italy
2 - Associazione EURATOM-ENEA sulla Fusione, C.R. Frascati, CP 65-00044 Frascati Roma, Italy
3 - Osservatorio Astronomico di Roma, via dell'Osservatorio, I-00040 Monteporzio, Italy

Received February 5; accepted June 22, 1998

Abstract:

We present in this paper new and updated calculations of the ionization equilibrium for all the elements from H to Ni. We collected for these elements all the data available in the literature for the ionization and radiative plus dielectronic recombination rates. In particular, the dielectronic rates have been fitted with a single formula and the related coefficients are tabulated. Our results are compared with previous works.

Key words: atomic data -- plasmas -- radiation mechanisms: thermal -- X-rays: general

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