Fine-Structure Line Emission from the Outflows of Young Stellar Objects
| Autor: | Shang, Hsien, Glassgold, Alfred, Lin, Wei-Chieh, Liu, Chun-Fan J. |
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| Rok vydání: | 2010 |
| Předmět: | |
| Zdroj: | Astrophysical Journal 714 (2010) 1733-1739 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1088/0004-637X/714/2/1733 |
| Popis: | The flux and line shape of the fine-structure transitions of \NeII\ and \NeIII\ at 12.8 and 15.55\,$\mu$m and of the forbidden transitions of \OI\ $\lambda6300$ are calculated for young stellar objects with a range of mass-loss rates and X-ray luminosities using the X-wind model of jets and the associated wide-angle winds. For moderate and high accretion rates, the calculated \NeII\ line luminosity is comparable to or much larger than produced in X-ray irradiated disk models. All of the line luminosities correlate well with the main parameter in the X-wind model, the mass-loss rate, and also with the assumed X-ray luminosity --- and with one another. The line shapes of an approaching jet are broad and have strong blue-shifted peaks near the effective terminal velocity of the jet. They serve as a characteristic and testable aspect of jet production of the neon fine-structure lines and the \OI\ forbidden transitions. Comment: 8 pages, 5 figures, published in ApJ |
| Databáze: | arXiv |
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