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Table · dataset · 2020

Plasma environment effects on Fe IX-XVI K lines

Listed in IVOA Registry (Virtual Observatory)

In the context of black-hole accretion disks, we have computed plasma environment effects on the atomic parameters used to model the decay of K-vacancy states in moderately charged iron ions, namely FeIX-FeXVI.

Description

We use the fully relativistic multiconfiguration Dirac-Fock (MCDF) method approximating the plasma electron-nucleus and electron-electron screenings with a time-averaged Debye-Huckel potential. Modified ionization potentials, K thresholds, wavelengths, radiative emission rates and Auger widths are reported for astrophysical plasmas characterized by electron temperatures and densities respectively in the ranges 10^5^-10^7^K and 10^18^-10^22^cm^-3^.

This study confirms that the high-resolution X-ray spectrometers onboard the future XRISM and ATHENA space missions could detect the lowering of the K edges of these ions due to the extreme plasma conditions occurring in accretion disks around compact objects.

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Catalogue records · 2

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Inferred from text
Space sciences 68%
Provenance · 1 source records, 8 field assertions
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IVOA Registry (Virtual Observatory)ivo://cds.vizier/j/a+a/635/a7010 d agoJSON v1
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concepts[field].anzsrc:group:5109enrichment · IVOA Registrytaxonomy-embedding@1.1.0title+keywords+description (68%)
concepts[field].local:field:astronomymapping · IVOA Registryconnector:ivoa_registry@1.0.0
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