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The ALMA Survey of 70 mu m Dark High-mass Clumps in Early Stages (ASHES). III. A Young Molecular Outflow Driven by a Decelerating Jet
Tafoya, Daniel1; Sanhueza, Patricio2,3; Zhang, Qizhou4; Li, Shanghuo4,5,6; Guzman, Andres E.2; Silva, Andrea2; de la Fuente, Eduardo7,8; Lu, Xing2; Morii, Kaho2,9; Tatematsu, Ken'ichi2; Contreras, Yanett10; Izumi, Natsuko2,11; Jackson, James M.12; Nakamura, Fumitaka2,3; Sakai, Takeshi13
2021-06-01
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume913Issue:2Pages:11
AbstractWe present a spatio-kinematical analysis of the CO (J = 2 -> 1) line emission, observed with the Atacama Large Millimeter/submillimeter Array (ALMA), of the outflow associated with the most massive core, ALMA1, in the 70 mu m dark clump G010.991-00.082. The position-velocity (PV) diagram of the molecular outflow exhibits a peculiar S-shaped morphology that has not been seen in any other star-forming region. We propose a spatio-kinematical model for the bipolar molecular outflow that consists of a decelerating high-velocity component surrounded by a slower component whose velocity increases with distance from the central source. The physical interpretation of the model is in terms of a jet that decelerates as it entrains material from the ambient medium, which has been predicted by calculations and numerical simulations of molecular outflows in the past. One side of the outflow is shorter and shows a stronger deceleration, suggesting that the medium through which the jet moves is significantly inhomogeneous. The age of the outflow is estimated to be tau approximate to 1300 yr, after correction for a mean inclination of the system of approximate to 57 degrees.
Funding OrganizationJapan Society for the Promotion of Science (JSPS) ; Japan Society for the Promotion of Science (JSPS) ; NAOJ Visiting Fellow Program ; NAOJ Visiting Fellow Program ; CUCEI ; CUCEI ; CUCEA ; CUCEA ; Japan Society for the Promotion of Science (JSPS) ; Japan Society for the Promotion of Science (JSPS) ; NAOJ Visiting Fellow Program ; NAOJ Visiting Fellow Program ; CUCEI ; CUCEI ; CUCEA ; CUCEA ; Japan Society for the Promotion of Science (JSPS) ; Japan Society for the Promotion of Science (JSPS) ; NAOJ Visiting Fellow Program ; NAOJ Visiting Fellow Program ; CUCEI ; CUCEI ; CUCEA ; CUCEA ; Japan Society for the Promotion of Science (JSPS) ; Japan Society for the Promotion of Science (JSPS) ; NAOJ Visiting Fellow Program ; NAOJ Visiting Fellow Program ; CUCEI ; CUCEI ; CUCEA ; CUCEA
DOI10.3847/1538-4357/abf5da
WOS KeywordCO LINE FORMATION ; STAR-FORMATION ; GALACTIC PLANE ; HIGH-VELOCITY ; BIPOLAR OUTFLOW ; FRAGMENTATION ; PROTOSTARS ; ATLASGAL ; REGIONS ; MODELS
Language英语
Funding ProjectJapan Society for the Promotion of Science (JSPS)[18H01259] ; NAOJ Visiting Fellow Program ; CUCEI ; CUCEA
Funding OrganizationJapan Society for the Promotion of Science (JSPS) ; Japan Society for the Promotion of Science (JSPS) ; NAOJ Visiting Fellow Program ; NAOJ Visiting Fellow Program ; CUCEI ; CUCEI ; CUCEA ; CUCEA ; Japan Society for the Promotion of Science (JSPS) ; Japan Society for the Promotion of Science (JSPS) ; NAOJ Visiting Fellow Program ; NAOJ Visiting Fellow Program ; CUCEI ; CUCEI ; CUCEA ; CUCEA ; Japan Society for the Promotion of Science (JSPS) ; Japan Society for the Promotion of Science (JSPS) ; NAOJ Visiting Fellow Program ; NAOJ Visiting Fellow Program ; CUCEI ; CUCEI ; CUCEA ; CUCEA ; Japan Society for the Promotion of Science (JSPS) ; Japan Society for the Promotion of Science (JSPS) ; NAOJ Visiting Fellow Program ; NAOJ Visiting Fellow Program ; CUCEI ; CUCEI ; CUCEA ; CUCEA
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000657491000001
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/77100
Collection中国科学院国家天文台
Corresponding AuthorTafoya, Daniel
Affiliation1.Chalmers Univ Technol, Dept Space Earth & Environm, Onsala Space Observ, SE-43992 Onsala, Sweden
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.Harvard & Smithsonian, Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA
5.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
6.Univ Chinese Acad Sci, 19A Yuquanlu, Beijing 100049, Peoples R China
7.Univ Guadalajara, CUCEI, Dept Fis, Blvd Gral Marcelino Garcia Barragan 1421, Guadalajara 44430, Jalisco, Mexico
8.Univ Guadalajara, CUCEA, Informat Technol Ph, NUcleo Univ Los Belenes, Perifer Norte 799, Zapopan 45100, Jalisco, Mexico
9.Univ Tokyo, Grad Sch Sci, Dept Astron, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan
10.Leiden Univ, Leiden Observ, POB 9513, Leiden, Netherlands
11.Ibaraki Univ, Coll Sci, 2-1-1 Bunkyo, Mito, Ibaraki 3108512, Japan
12.NASA, SOFIA Sci Ctr, USRA, Ames Res Ctr, Moffett Field, CA 94045 USA
13.Univ Electrocommun, Grad Sch Informat & Engn, Chofu, Tokyo 1828585, Japan
Recommended Citation
GB/T 7714
Tafoya, Daniel,Sanhueza, Patricio,Zhang, Qizhou,et al. The ALMA Survey of 70 mu m Dark High-mass Clumps in Early Stages (ASHES). III. A Young Molecular Outflow Driven by a Decelerating Jet[J]. ASTROPHYSICAL JOURNAL,2021,913(2):11.
APA Tafoya, Daniel.,Sanhueza, Patricio.,Zhang, Qizhou.,Li, Shanghuo.,Guzman, Andres E..,...&Sakai, Takeshi.(2021).The ALMA Survey of 70 mu m Dark High-mass Clumps in Early Stages (ASHES). III. A Young Molecular Outflow Driven by a Decelerating Jet.ASTROPHYSICAL JOURNAL,913(2),11.
MLA Tafoya, Daniel,et al."The ALMA Survey of 70 mu m Dark High-mass Clumps in Early Stages (ASHES). III. A Young Molecular Outflow Driven by a Decelerating Jet".ASTROPHYSICAL JOURNAL 913.2(2021):11.
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