arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0705.2414astro-ph
收藏

2006年蛇夫座RS喷发的斯皮策和地基红外观测

Spitzer and ground-based infrared observations of the 2006 eruption of RS Ophiuchi

A. Evans, C. E. Woodward, L. A. Helton, R. D. Gehrz, D. K. Lynch, R. J. Rudy, R. W. Russell, T. Kerr, M. F. Bode, M. J. Darnley, S. P. S. Eyres, T. R. Geballe, … 展开作者

A. Evans, C. E. Woodward, L. A. Helton, R. D. Gehrz, D. K. Lynch, R. J. Rudy, R. W. Russell, T. Kerr, M. F. Bode, M. J. Darnley, S. P. S. Eyres, T. R. Geballe, T. J. O'Brien, R. J. Davis, S. Starrfield, J. -U. Ness, J. Drake, J. P. Osborne, K. L. Page, G. Schwarz, J. Krautter

摘要:

我们提出了斯皮策太空望远镜和补充地面红外观测的周期性新星RS蛇夫座,在64-111天期间获得的2006年爆发后。斯皮策IRS的数据显示了一个丰富的发射线光谱叠加在一个自由的连续。精细结构和日冕红外线的存在导致我们推断,至少有两个温度(1.5e5K和9 e5 K)的喷出物/风环境,并在“冷却器”区域的电子密度为2.2e5厘米-3。元素丰度的测定并不简单,但假设Ne和O的精细结构线出现在相同体积的喷出物中,O/Ne比值按数量计>~0.6。

英文摘要:

We present Spitzer Space Telescope and complementary ground-based infrared observations of the recurrent nova RS Ophiuchi, obtained over the period 64-111 days after the 2006 eruption. The Spitzer IRS data show a rich emission line spectrum superimposed on a free-free continuum. The presence of fine structure and coronal infrared lines lead us to deduce that there are at least two temperatures (1.5e5K and 9e5K) in the ejecta/wind environment, and that the electron density in the `cooler' region is 2.2e5 cm-3. The determination of elemental abundances is not straightforward but on the assumption that the Ne and O fine structure lines arise in the same volume of the ejecta, the O/Ne ratio is >~0.6 by number.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑