The Fe XXII I(11.92 A)/I(11.77 A) Density Diagnostic
| dc.creator | Mauche, Christopher W. | |
| dc.creator | Liedahl, Duane A. | |
| dc.creator | Fournier, Kevin B. | |
| dc.date | 2003-01-31 | |
| dc.date.accessioned | 2026-07-07T02:07:24Z | |
| dc.date.available | 2026-07-07T02:07:24Z | |
| dc.description | Using the Livermore X-ray Spectral Synthesizer, which calculates spectral models of highly charged ions based on HULLAC atomic data, we investigate the temperature, density, and photoexcitation dependence of the I(11.92 A)/I(11.77 A) line ratio of Fe XXII. Applied to the Chandra HETG spectrum of the intermediate polar EX Hya, we find that the electron density of its T_e ~ 12 MK plasma is log n_e (cm^-3) = 14.3^{+0.7}_{-0.5}, orders of magnitude greater than that observed in the Sun or other late-type stars. | |
| dc.description | 4 pages including 3 encapsulated postscript figures; LaTeX format, uses newpasp.sty; to appear in the ASP Conference Series "IAU Colloquium No. 190--Magnetic Cataclysmic Variables" | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0301633 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0301633 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/5685 | |
| dc.subject | Astrophysics | |
| dc.title | The Fe XXII I(11.92 A)/I(11.77 A) Density Diagnostic | |
| dc.type | text |