تقرير
Warm HCN, C2H2, and CO in the disk of GV Tau
| العنوان: | Warm HCN, C2H2, and CO in the disk of GV Tau |
|---|---|
| المؤلفون: | Gibb, E. L., Van Brunt, K. A., Brittain, S. D., Rettig, T. W. |
| المصدر: | Astrophys.J.660:1572-1579,2007 |
| سنة النشر: | 2007 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics |
| الوصف: | We present the first high-resolution, ground-based observations of HCN and C2H2 toward the T Tauri binary star system GV Tau. We detected strong absorption due to HCN nu_3 and weak C2H2 (nu_3 and nu_2 + (nu_4 + nu_5)^0_+) absorption toward the primary (GV Tau S) but not the infrared companion. We also report CO column densities and rotational temperatures, and present abundances relative to CO of HCN/CO ~0.6% and C2H2/CO ~1.2% and an upper limit for CH4/CO < 0.37% toward GV Tau S. Neither HCN nor C2H2 were detected toward the infrared companion and results suggest that abundances may differ between the two sources. Comment: 23 pages, 6 figures, accepted by ApJ |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1086/513502 |
| URL الوصول: | http://arxiv.org/abs/0704.1762 |
| رقم الأكسشن: | edsarx.0704.1762 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1086/513502 |
|---|