ELECTRON-IMPACT EXCITATION OF INTERSTELLAR MOLECULES

机译：星际分子的电子冲击激发

获取原文

获取原文并翻译 | 示例

页面导航

摘要
著录项
相似文献
相关主题

摘要

Electron-molecule collisions play a crucial role in as-trophysical environments where the electron fraction is higher than about 10~(-5), e.g. in the diffuse ISM, PDRs or comets. We present here a brief review of our recent R-matrix calculations of rate coefficients for electron-impact excitation of interstellar molecules. Our major result is the prediction of emission lines from higher rotational states than previously assumed. Rate coefficients for transitions with Δj > 1 are indeed found to be significant and in some cases larger than those with Δj = 1, the only ones considered previously. This reflects the importance of short-range interactions which are ignored in the standard theories. Illustrative results are presented for CH~+, H_3~+ and H_2O.

机译：电子分子碰撞在天体环境中起着至关重要的作用，在天体环境中，电子分数高于约10〜（-5），例如在分散的ISM，PDR或彗星中。我们在这里简要回顾一下我们最近的星际分子电子碰撞激发速率系数的R矩阵计算。我们的主要结果是根据比以前假定的更高的旋转状态预测发射线。实际上，发现Δj> 1的跃迁的速率系数非常重要，并且在某些情况下比Δj= 1的跃迁系数更大，这是以前才考虑的。这反映了标准理论中忽略的短程相互作用的重要性。给出了CH〜+，H_3〜+和H_2O的示例性结果。

著录项

来源
《ESA SP-577; Conference on The Dusty and Molecular Universe: A Prelude to Herschel and ALMA(Atacama Large Millimeter Array); 20041027-29; Paris(FR)》|2004年|P.363-364|共2页
会议地点 Paris(FR)
作者
A. Faure; J. Tennyson;
展开▼
作者单位

Laboratoire d'Astrophysique, Observatoire de Grenoble, BP 53X, 38041 Grenoble Cedex 09, France;

展开▼
会议组织
原文格式 PDF
正文语种 eng
中图分类空间天体物理学;
关键词
molecular data; molecular processes; ISM;

机译：分子数据;分子过程; ISM;

相似文献

外文文献
中文文献
专利

1. Experimental scaling of plane-Born cross sections and ab initio assignments for electron-impact excitation and dissociation of XF4 (X = C, Si, and Ge) molecules [J] . Hoshino M., Duflot D., Limao-Vieira P., The Journal of Chemical Physics . 2017,第14期

机译：平面横截面的实验缩放和用于电子冲击激发和XF4（X = C，Si和Ge）分子的解离的AB初始分配
2. Calculated low-energy electron-impact vibrational excitation cross sections for CO2 molecule [J] . Laporta V., Tennyson J., Celiberto R. Plasma Sources Science & Technology . 2016,第6期

机译：计算CO2分子的低能量电子撞击振动振动截面
3. Calculated low-energy electron-impact vibrational excitation cross sections for CO2 molecule [J] . Laporta V., Tennyson J., Celiberto R. Plasma Sources Science & Technology . 2016,第6期

机译：计算CO2分子的低能量电子撞击振动振动截面
4. ELECTRON-IMPACT EXCITATION OF INTERSTELLAR MOLECULES [C] . A. Faure, J. Tennyson, lObservatoire de Paris, Conference on The Dusty and Molecular Universe: A Prelude to Herschel and ALMA . 2005

机译：Intellerellar分子的电子冲击激发
5. High level ab initio structural and spectroscopic studies of interstellar ion-molecule complexes and interstellar triatomic molecules. [D] . Cotton, C. Eric. 2013

机译：星际离子分子复合物和星际三原子分子的高级从头算结构和光谱研究。
6. Electron-Impact Cross Sections for Ground State to np Excitations of Sodium and Potassium [O] . Philip M. Stone, Yong-Ki Kim 2004

机译：基态对钠和钾的np激发的电子冲击截面
7. Experimental scaling of plane-Born cross sections for the electron-impact excitation to the b 1Πu state of N2 molecule [O] . A. Tanaka, H. Kato, M. Hoshino, 2017

机译：用于电气冲击激发的平面横截面的实验缩放到N2分子的B1πu状态
8. Deconvolution of overlapping features in electron energy-loss spectra: the determination of absolute differential cross sections for electron-impact excitation of electronic states of molecules [R] . Campbell, L. , Brunger, M. J. , Teubner, O. J. P. , 1996

机译：电子能量损失谱中重叠特征的反卷积：电子碰撞激发分子电子态的绝对微分截面的确定

ELECTRON-IMPACT EXCITATION OF INTERSTELLAR MOLECULES

摘要

著录项

相似文献

相关主题

期刊订阅