Tiptopbase: the Iron Project and the Opacity Project Atomic Database

Details Tiptopbase: the Iron Project and the Opacity Project Atomic Database Tiptopbase: the Iron Project and the Opacity Project Atomic Database

May 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aps..dmp.j6054m&link_type=abstract

American Physical Society, 2002 Division of Atomic, Molecular and Optical , abstract #J6.054

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The aims of the international collaborations, Opacity Project (OP), the IRON Project (IP), and the RmaX Network (The Opacity Project Team, Vol.1,2), IOPP, Bristol (1995,1996); Hummer et al., Astron. Astrophys. 279, 298 (1993) are to obtain accurate atomic data for radiative and collisional processes, and plasma opacities for astrophysical applications. A new, considerably enlarged, version of the existing electronic database TOPbase (http://heasarc.gsfc.nasa.gov OR http://vizier.u-strasbg.fr/OP.html) is under development. It is called TIPTOPBASE and will contain (i) photoionization cross sections (σ_PI), energy levels and oscillator strengths (f-values), and monochromatic and Rosseland mean opacities of atoms and ions with Z = 1 - 14, 16, 18, 20, 26, as well as new data for P, Cl, K, Ni II-III, (ii) collisional data for iron and iron peak elements, (iv) σ_PI at high energies including inner-shell ionization, (v) total and level specific unified recombination rate coefficients, (vi) f-values for inner-shell excitations in Fe VIII - XIII, (vi) relativistic fine structure σ_PI and f-values for selected ions, (vii) on-line computational facilities for 'customized' opacities and radiative forces for user-specified mixture of elements. Partial support from NASA is acknowledged.

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