Neon Abundances from a Spitzer/IRS Survey of Wolf-Rayet Stars
| dc.creator | Ignace, R | |
| dc.creator | Cassinelli, J P | |
| dc.creator | Tracy, G | |
| dc.creator | Churchwell, E B | |
| dc.creator | Lamers, H J G L M | |
| dc.date | 2007-07-18 | |
| dc.date.accessioned | 2026-07-07T12:41:11Z | |
| dc.date.available | 2026-07-07T12:41:11Z | |
| dc.description | We report on neon abundances derived from {\it Spitzer} high resolution spectral data of eight Wolf-Rayet (WR) stars using the forbidden line of [\ion{Ne}{3}] 15.56 microns. Our targets include four WN stars of subtypes 4--7, and four WC stars of subtypes 4--7. We derive ion fraction abundances $γ$ of Ne^{2+} for the winds of each star. The ion fraction abundance is a product of the ionization fraction $Q_{\rm i}$ in stage i and the abundance by number ${\cal A}_E$ of element E relative to all nuclei. Values generally consistent with solar are obtained for the WN stars, and values in excess of solar are obtained for the WC stars. | |
| dc.description | to appear in Astrophysical Journal | |
| dc.identifier | https://arxiv.org/abs/0707.2770 | |
| dc.identifier | http://arxiv.org/abs/0707.2770 | |
| dc.identifier | Astrophys.J.669:600-605,2007 | |
| dc.identifier | doi:10.1086/521718 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/219685 | |
| dc.subject | Astrophysics | |
| dc.title | Neon Abundances from a Spitzer/IRS Survey of Wolf-Rayet Stars | |
| dc.type | text |