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Chemistry of Protostellar Clumps in the High-mass, Star-forming Filamentary Infrared Dark Cloud G034.43+00.24
Liu, Hong-Li1; Sanhueza, Patricio2,3; Liu, Tie4; Zavagno, Annie5,6; Tang, Xin-Di7,8; Wu, Yuefang9,10; Zhang, Siju5
2020-09-01
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume901Issue:1Pages:31
Contribution Rank7
AbstractTo search for the potential chemical dependence on physical conditions, we have carried out the study of chemistry on the nine protostellar clumps of the high-mass star-forming infrared dark cloud G034.43+00.24, with observations of several similar to 1 mm lines by the Atacama Pathfinder EXperiment telescope. They include CO/(CO)-C-13/(CO)-O-18(2-1), HCO+/(HCO+)-C-13(3-2), HCN/(HCN)-C-13(3-2), HNC (3-2), CS/(CS)-S-34(5-4), SiO.(6 -5), SO(6-5), p-H2CO.(3-2), and CH3OH.(5-4). All the clumps are simply grouped into two classes: highluminosity protostellar clumps (MM1-MM4, L-bol > similar to 103 L-circle dot) and low-luminosity protostellar clumps (MM5-MM9, L-bol << 10(3) L-circle dot). Our observations indicate that (CO)-C-13 suffers either no or low depletion in the clump environment of G034.43+00.24 as characterized by a nearly constant level of the (CO)-C-13 abundance distribution. For the remaining relatively dense gas tracers, we find that their abundances tend to get enhanced in the highluminosity protostellar clumps as opposed to the low-luminosity counterparts. We suggest that for most, if not all, of the dense gas tracers the high abundance mainly arises from both the high luminosities and associated outflows of the high-luminosity protostellar clumps while the low abundance could be due to the lack of such active starforming activities in the low-luminosity protostellar clumps.
KeywordAstrochemistry Chemical abundances Interstellar medium Interstellar molecules Star formation
DOI10.3847/1538-4357/abadfe
URL查看原文
Indexed BySCI
Language英语
WOS KeywordCHEMICAL EVOLUTION ; MOLECULAR OUTFLOWS ; ABUNDANCE RATIO ; INTERSTELLAR ; EMISSION ; GAS ; FORMALDEHYDE ; POPULATION ; PRECURSORS ; REGIONS
Funding ProjectFondecyt[3190161] ; Japan Society for the Promotion of Science (JSPS)[18H01259] ; NSFC[11903070] ; NSFC[11433008] ; Heaven Lake Hundred-Talent Program of Xinjiang Uygur Autonomous Region of PR China
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000573465800001
PublisherIOP PUBLISHING LTD
Funding OrganizationFondecyt ; Japan Society for the Promotion of Science (JSPS) ; NSFC ; Heaven Lake Hundred-Talent Program of Xinjiang Uygur Autonomous Region of PR China
Citation statistics
Document Type期刊论文
Identifierhttp://ir.xao.ac.cn/handle/45760611-7/3671
Collection射电天文研究室_恒星形成与演化研究团组
Corresponding AuthorLiu, Hong-Li
Affiliation1.Univ Concepcion, Dept Astron, Av Esteban Iturra S-N,160-C, Concepcion, Chile
2.Natl Inst Nat Sci, Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan
3.SOKENDAI Grad Univ Adv Studies, Dept Astron Sci, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan
4.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
5.Aix Marseille Univ, CNRS, CNES, LAM, Marseille, France
6.Inst Univ France IUF, Paris, France
7.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
8.Chinese Acad Sci, Key Lab Radio Astron, Urumqi 830011, Peoples R China
9.Peking Univ, Sch Phys, Astron Dept, 5 Yi He Yuan Rd, Beijing 100871, Peoples R China
10.Peking Univ, Kavli Inst Astron & Astrophys, 5 Yi He Yuan Rd, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
Liu, Hong-Li,Sanhueza, Patricio,Liu, Tie,et al. Chemistry of Protostellar Clumps in the High-mass, Star-forming Filamentary Infrared Dark Cloud G034.43+00.24[J]. ASTROPHYSICAL JOURNAL,2020,901(1):31.
APA Liu, Hong-Li.,Sanhueza, Patricio.,Liu, Tie.,Zavagno, Annie.,Tang, Xin-Di.,...&Zhang, Siju.(2020).Chemistry of Protostellar Clumps in the High-mass, Star-forming Filamentary Infrared Dark Cloud G034.43+00.24.ASTROPHYSICAL JOURNAL,901(1),31.
MLA Liu, Hong-Li,et al."Chemistry of Protostellar Clumps in the High-mass, Star-forming Filamentary Infrared Dark Cloud G034.43+00.24".ASTROPHYSICAL JOURNAL 901.1(2020):31.
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