NAOC Open IR
New maser species tracing spiral-arm accretion flows in a high-mass young stellar object
Chen, Xi1,2,3; Sobolev, Andrej M.4; Ren, Zhi-Yuan5; Parfenov, Sergey4; Breen, Shari L.6; Ellingsen, Simon P.7; Shen, Zhi-Qiang2,3; Li, Bin2,3; MacLeod, Gordon C.8,9; Baan, Willem10; Brogan, Crystal11; Hirota, Tomoya12,13; Hunter, Todd R.11; Linz, Hendrik14; Menten, Karl15; Sugiyama, Koichiro13,16; Stecklum, Bringfried17; Gong, Yan15; Zheng, Xingwu18
2020-07-13
Source PublicationNATURE ASTRONOMY
ISSN2397-3366
Pages8
AbstractNumerical simulations have predicted that substructures such as spiral arms can be produced through a gravitationally unstable disk around high-mass young stellar objects (HMYSOs)(1-5). Recent high-resolution observations from the Atacama Large Millimeter/submillimeter Array have investigated these substructures at a spatial resolution of similar to 100 au (refs.(6-10)). An accretion burst, which is a manifestation of an increase in the accretion rate caused by a gravitational instability in the disk(1,11,12), can result in luminosity outbursting phenomena-as has been seen in several HMYSOs13,14. However, no clear relationship between the accretion bursts and disk substructures has been established. Here we report the detections of three new molecular maser species, HDO, HNCO and (CH3OH)-C-13, from the direction of the HMYSO G358.93-0.03 during a 6.7GHz methanol maser flaring event(15). High-quality imaging of the three new maser species exhibits consistent observational evidence that these masers closely trace the spiral-arm substructures around this HMYSO. The rapid decay of the spectral lines emitted from these molecules suggests that these are transient phenomena (for only similar to 1month), probably associated with rapid changes in radiation field due to an accretion burst. Therefore, these new maser species provide evidence linking the spiral-arm substructure with an accretion burst, both expected from massive disk instabilities.
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (2019) ; Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (2019) ; Astronomy Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Astronomy Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; Russian Science Foundation ; Russian Science Foundation ; ARC Discovery Project ; ARC Discovery Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (2019) ; Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (2019) ; Astronomy Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Astronomy Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; Russian Science Foundation ; Russian Science Foundation ; ARC Discovery Project ; ARC Discovery Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (2019) ; Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (2019) ; Astronomy Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Astronomy Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; Russian Science Foundation ; Russian Science Foundation ; ARC Discovery Project ; ARC Discovery Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (2019) ; Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (2019) ; Astronomy Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Astronomy Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; Russian Science Foundation ; Russian Science Foundation ; ARC Discovery Project ; ARC Discovery Project
DOI10.1038/s41550-020-1144-x
WOS KeywordII METHANOL MASERS ; MOLECULAR-SPECTROSCOPY ; RADIATION PRESSURE ; COLOGNE DATABASE ; SUBMILLIMETER ; PROTOSTARS ; EVOLUTION ; SYSTEMS ; STARS ; BURST
Language英语
Funding ProjectNational Natural Science Foundation of China[11590781] ; National Natural Science Foundation of China[11873002] ; National Natural Science Foundation of China[12011530065] ; National Natural Science Foundation of China[11590780] ; Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (2019) ; Astronomy Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; Russian Science Foundation[18-12-00193] ; ARC Discovery Project[DP180101061]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (2019) ; Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (2019) ; Astronomy Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Astronomy Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; Russian Science Foundation ; Russian Science Foundation ; ARC Discovery Project ; ARC Discovery Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (2019) ; Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (2019) ; Astronomy Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Astronomy Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; Russian Science Foundation ; Russian Science Foundation ; ARC Discovery Project ; ARC Discovery Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (2019) ; Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (2019) ; Astronomy Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Astronomy Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; Russian Science Foundation ; Russian Science Foundation ; ARC Discovery Project ; ARC Discovery Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (2019) ; Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (2019) ; Astronomy Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Astronomy Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; Russian Science Foundation ; Russian Science Foundation ; ARC Discovery Project ; ARC Discovery Project
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000548178300001
PublisherNATURE PUBLISHING GROUP
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/82672
Collection中国科学院国家天文台
Corresponding AuthorChen, Xi; Sobolev, Andrej M.
Affiliation1.GuangZhou Univ, Ctr Astrophys, Guangzhou, Peoples R China
2.Chinese Acad Sci, Shanghai Astron Observ, Shanghai, Peoples R China
3.Chinese Acad Sci, Key Lab Radio Astron, Beijing, Peoples R China
4.Ural Fed Univ, Ekaterinburg, Russia
5.Chinese Acad Sci, Natl Astron Observ, Beijing, Peoples R China
6.SKA Org, Jodrell Bank Observ, Macclesfield, Cheshire, England
7.Univ Tasmania, Sch Nat Sci, Hobart, Tas, Australia
8.Hartebeesthoek Radio Astron Observ, Krugersdorp, South Africa
9.Univ Western Ontario, London, ON, Canada
10.Netherlands Inst Radio Astron, Dwingeloo, Netherlands
11.Natl Radio Astron Observ, Charlottesville, VA USA
12.SOKENDAI Grad Univ Adv Studies, Dept Astron Sci, Tokyo, Japan
13.Natl Astron Observ Japan NAOJ, Mizusawa VLBI Observ, Tokyo, Japan
14.Max Planck Inst Astron, Heidelberg, Germany
15.Max Planck Inst Radio Astron, Bonn, Germany
16.Natl Astron Res Inst Thailand Publ Org, Chiang Mai, Thailand
17.Thuringer Landessternwarte, Tautenburg, Germany
18.Nanjing Univ, Sch Astron & Space Sci, Nanjing, Peoples R China
Recommended Citation
GB/T 7714
Chen, Xi,Sobolev, Andrej M.,Ren, Zhi-Yuan,et al. New maser species tracing spiral-arm accretion flows in a high-mass young stellar object[J]. NATURE ASTRONOMY,2020:8.
APA Chen, Xi.,Sobolev, Andrej M..,Ren, Zhi-Yuan.,Parfenov, Sergey.,Breen, Shari L..,...&Zheng, Xingwu.(2020).New maser species tracing spiral-arm accretion flows in a high-mass young stellar object.NATURE ASTRONOMY,8.
MLA Chen, Xi,et al."New maser species tracing spiral-arm accretion flows in a high-mass young stellar object".NATURE ASTRONOMY (2020):8.
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