Journal article
Spectral Implications of Atomic Uncertainties in Optically Thin Hot Plasmas
The Astrophysical journal, v 908(1), p3
01 Feb 2021
Abstract
Two new high-resolution X-ray spectroscopy missions, XRISM and Athena, will observe deeper and with higher X-ray resolution than ever before possible. Interpreting these new X-ray spectra will require understanding the impact that uncertainties on fundamental atomic quantities such as collisional cross sections, transition rates, and wavelengths have on spectral models. As millions of values are required to generate even a simple model of an optically thin hot plasma, most such rates exist only as theoretical calculations. We have developed methods to estimate the uncertainty in the final spectral calculations based on published experimental data and plausible approximations to the uncertainties in the underlying atomic data. We present an extension to the pyatomdb code which implements these methods and investigate the sensitivity of selected strong diagnostic lines in the X-ray bandpass (0.3-12 keV).
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Details
- Title
- Spectral Implications of Atomic Uncertainties in Optically Thin Hot Plasmas
- Creators
- Keri Heuer (Corresponding Author) - Drexel University, PhysicsAdam R. Foster - Center for Astrophysics Harvard & SmithsonianRandall Smith - Center for Astrophysics Harvard & Smithsonian
- Publication Details
- The Astrophysical journal, v 908(1), p3
- Publisher
- IOP Publishing Ltd
- Number of pages
- 11
- Grant note
- 80NSSC18K0409 / NASA Astrophysics Grant
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Web of Science ID
- WOS:000616114300001
- Scopus ID
- 2-s2.0-85101578709
- Other Identifier
- 991021860655804721
InCites Highlights
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Astronomy & Astrophysics