Atomic and Molecular Data for Opacity Calculations

Details Atomic and Molecular Data for Opacity Calculations Atomic and Molecular Data for Opacity Calculations

Mar 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992rmxaa..23...45k&link_type=abstract

Revista Mexicana de Astronomia y Astrofisica, 23, 45

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186

Scientific paper

RESUMEN. Se intenta producir listas de lfneas espectrales de todos los atomos y mol6culas que son importantes en las estrellas. Se recolectan todos los datos publicados sobre analisis espectral y valores gf. Se caiculan los niveles de energfa, las longitudes de onda, los valores gf y las constantes de amortiguamiento no disponibles en la literatura. Se han calculado listas de lfneas para las mol6culas diat6micas H2, CII, NH, OH, MgH, SiH, CN, C2, CO, SiO y TiO y para los atomos Ca 1-IX a Ni 1-IX del grupo del hierro. En total, las listas cuentan con 58 millones de lfneas. Estos calculos se revisan a medida que se dispone de nuevos datos de laboratorio. Este trabajo se esta' extendiendo a otras mol6culas diat6micas, a elementos ma's y menos pesados, asi como a. especies de mayor nivel (Ic ionizaci6n. ABSTRACT. I am attempting to produce line lists for all atoms and diatomic molecules that are important in stars. I collect all published data on spectrum analysis and oscillator strengths. I compute the energy levels, wavelengths, gf values, and damping constants that are not available from the literature. Line lists have been computed for diatomic molecules H2, CII, NH, OH, MgH, SiH, CN, C2, CO, SiO, and TiO, and for the iron group atoms Ca 1-IX to Ni 1-IX. These lists total 58 million lines. These calculations are being revised as new laboratory data become available. The work is being extended to other diatomic molecules, to lighter and heavier elements, and to higher stages of ionization. Key words: ATOMIC PROCESSES - MOLECULAR PROCESSES - TRANSITION PROBABILITIES

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