X-ray powerful diagnostics for highly-ionized plasmas: He-like ions
| dc.creator | Porquet, D. | |
| dc.creator | Mewe, R. | |
| dc.creator | Kaastra, J. S. | |
| dc.creator | Dubau, J. | |
| dc.creator | Raassen, A. J. J. | |
| dc.date | 2002-04-08 | |
| dc.date.accessioned | 2026-07-07T02:03:22Z | |
| dc.date.available | 2026-07-07T02:03:22Z | |
| dc.description | The calculations of the ratios of the Helium-like ion X-ray lines from C V to Si XIII are revisited in order to apply the results to density, temperature and ionization process diagnostics of data from high-resolution spectroscopy of the new generation of X-ray satellites: Chandra and XMM-Newton. Comparing to earlier computations, Porquet & Dubau (2000), the best experimental values are used for radiative transition probabilities. The influence of an external radiation field (photo-excitation), the contribution from unresolved dielectronic satellite lines and the optical depth are taken into account. These diagnostics could be applied to collision-dominated plasmas (e.g., stellar coronae), photo-ionized plasmas (e.g., ``Warm Absorber'' in AGNs), and transient plasmas (e.g., SNRs). | |
| dc.description | 4 pages, 3 figures, proceedings of the symposium 'New Visions of the X-ray Universe in the XMM-Newton and Chandra Era', 26-30 November 2001, ESTEC, The Netherlands, in press | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0204119 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0204119 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/4361 | |
| dc.subject | Astrophysics | |
| dc.title | X-ray powerful diagnostics for highly-ionized plasmas: He-like ions | |
| dc.type | text |