中国科学院紫金山天文台机构知识库
Advanced  
PMO OpenIR  > 期刊(老文献)  > 期刊论文
题名: CH3CN J=8-7 AND CS J=3-2 EMISSION IN ORION KL
作者: ZENG, Q ; PEI, CC
刊名: ASTROPHYSICS AND SPACE SCIENCE
出版日期: 1995
卷号: 229, 期号:2, 页码:301—310
学科分类: 天文和天体物理
英文摘要: The data of the line series CH3CN 8(K) - 7(K) K = 0 - 7 and line CS J = 3 - 2 were taken simultaneously. At beam size of 16 '' the emissions of CH3CN and CS have a common center position located near 1Rc2 with deviations Delta alpha similar to -8 '' and Delta delta similar to 5 ''. The observed data show that in Orion KL core the integrated intensities of the two species have double peaks separated by a space of 14 ''. The 2-dimension Gaussian fitting plots (FWHM) are ellipses of D-maj = 26 '' and D-min = 22 '' for CH3CN 8(K) - 7(K) K = 3 - 6 and D'(maj) = 39 '' D'(min) = 31 '' for CS J = 3 - 2 at a distance about 450 pc. Towards the multiple line emission region of CH3CN 8(K) - 7(K) K = 3 - 6, using a simplified very large velocity gradient model to solve the statistical equilibrium and radiative transfer equations, we find to fit the observed results, the optimum physical parameters and kinetic temperature T-k similar to 120 K, density n(H-a) similar to 1.2 x 10(5) cm(-3), velocity gradient V-gr similar to 92 km s(-1) pc(-1) and the local abundance of CH3CN F-ab similar to 3 x 10(-8). However towards the region of single line emission of CS J = 3 - 2 we have to use LTE and the optical thin approximation on the assumption of T-k = 120 K to obtain the lower limits of column density and then, an averaged abundance of CS of 6 x 10(-8).
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/8486
Appears in Collections:期刊(老文献)_期刊论文

Files in This Item:
File Name/ File Size Content Type Version Access License
1995016CH3CN J=8-7 AND CS J=3-2 EMISSION IN ORION KL.pdf(499KB)----限制开放View 联系获取全文

Recommended Citation:
ZENG, Q; PEI, CC.CH3CN J=8-7 AND CS J=3-2 EMISSION IN ORION KL,ASTROPHYSICS AND SPACE SCIENCE,1995,229(2):301—310
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[ZENG, Q]'s Articles
[PEI, CC]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[ZENG, Q]‘s Articles
[PEI, CC]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: 1995016CH3CN J=8-7 AND CS J=3-2 EMISSION IN ORION KL.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2018  中国科学院紫金山天文台 - Feedback
Powered by CSpace