Integrated fluxes for emission lines in the ultraviolet spectra of several planetary nebulae
Autor: | S. J. Czyzak, Kenneth George Carpenter |
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Rok vydání: | 1982 |
Předmět: |
Physics
Astrophysics::High Energy Astrophysical Phenomena Near-infrared spectroscopy Astronomy Astronomy and Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics medicine.disease_cause Planetary nebula Spectral line Ion Space and Planetary Science Ultraviolet astronomy Observatory Physics::Space Physics medicine Astrophysics::Solar and Stellar Astrophysics Emission spectrum Astrophysics::Galaxy Astrophysics Ultraviolet |
Zdroj: | Astrophysics and Space Science. 84:495-503 |
ISSN: | 1572-946X 0004-640X |
DOI: | 10.1007/bf00651328 |
Popis: | The IUE satellite observatory was used to obtain absolutely-calibrated emission line fluxes for diagnostic lines of multiply-ionized C, N, O, Si, Ne, and Ar which occur in the ultraviolet spectral region of planetary nebulae. These data, when combined with data from the blue, visual, and near infrared, provide improved estimates of ionic concentrations, plasma temperatures and densities, and elemental abundances. |
Databáze: | OpenAIRE |
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