E ect of Optical Depth on Study of Chemical Properties of Massive Star Forming Clumps

作     者：Jian-jun Zhou Run-xia Li Donghui Quan Jarken Esimbek Yu-xin He Da-lei Li Xin-di Tang Gang Wu Wei-guang Ji Zheng-xue Chang Xia Zhang Jian-jun Zhou;Run-xia Li;Donghui Quan;Jarken Esimbek;Yu-xin He;Da-lei Li;Xin-di Tang;Gang WU;Wei-guarng Ji;Zheng-xue Chang;Xia Zhang

作者机构：Xinjiang Astronomical ObservatoryChinese Academy of SciencesUrumqi 830011China University of the Chinese Academy of SciencesBeijing 100080China Key Laboratory of Radio AstronomyChinese Academy of SciencesUrumqi 830011China Department of ChemistryEastern Kentucky UniversityRichmond KY 40475USA 

出 版 物：《Chinese Journal of Chemical Physics》 (化学物理学报（英文）)

年 卷 期：2020年第33卷第1期

页      面：114-118页

核心收录：

学科分类：07[理学] 070401[理学-天体物理] 0704[理学-天文学] 

基　　金：the Open Program of the Key Laboratory of Xinjiang Uygur Autonomous Region(No.2019D04023) the National Natural Science foundation of China(No.11973076) the National Natural Science foundation of China(No.11433008,No.11603063,No.11703074 and No.11703073) the CAS"Light of West China"Program(No.2018-XBQNXZ-B-024,No.2016-QNXZB-23,and No.2016-QNXZ-B-22) 

主　　题：Stars formation Clumps Molecules Radio lines 

摘      要：Here we present the study on chemical properties of massive star forming clumps using N2H^+(1-0),H^13CO+(1-0),HCN(1-0)and HN^13C(1-0)data from the literature[***.563,A97(2014)].We found that abundances of H^13CO+ and HN^13C are a ected by H2 column *** the median values of these two abundances increase by nearly 10 times from stages A to B,H^13CO+and HN^13C are suitable for tracing the evolution of massive star forming *** order of rapidity in growth of abundances of all the four studied molecules from stages A to B,is H^13CO^+,HCN,HN^13C,and N2H^+,from the highest to the *** results suggest that the observing optically thin molecular lines with high angular resolution are necessary to study the chemical evolution of massive star forming clumps.