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Physical Environments of the Luminosity Outburst Source NGC 6334I Traced by Thermal and Maser Lines of Multiple Molecules . / Wu, Jiong-heng; Chen, Xi; Zhang, Yan-kun et al.
In: Astrophysical Journal, Supplement Series, Vol. 265, No. 2, 49, 2023.

Research output: Contribution to journal › Article › peer-review

Harvard

Wu, J, Chen, X, Zhang, Y, Ellingsen, SP, Sobolev, AM, Zhao, Z, Song, S, Shen, Z, Li, B, Xia, B, Zhao, R, Wang, J & Wu, Y 2023, 'Physical Environments of the Luminosity Outburst Source NGC 6334I Traced by Thermal and Maser Lines of Multiple Molecules ', Astrophysical Journal, Supplement Series, vol. 265, no. 2, 49. https://doi.org/10.3847/1538-4365/acbd46

APA

Wu, J., Chen, X., Zhang, Y., Ellingsen, S. P., Sobolev, A. M., Zhao, Z., Song, S., Shen, Z., Li, B., Xia, B., Zhao, R., Wang, J., & Wu, Y. (2023). Physical Environments of the Luminosity Outburst Source NGC 6334I Traced by Thermal and Maser Lines of Multiple Molecules . Astrophysical Journal, Supplement Series, 265(2), [49]. https://doi.org/10.3847/1538-4365/acbd46

Vancouver

Wu J, Chen X, Zhang Y, Ellingsen SP, Sobolev AM, Zhao Z et al. Physical Environments of the Luminosity Outburst Source NGC 6334I Traced by Thermal and Maser Lines of Multiple Molecules . Astrophysical Journal, Supplement Series. 2023;265(2):49. doi: 10.3847/1538-4365/acbd46

Author

Wu, Jiong-heng ; Chen, Xi ; Zhang, Yan-kun et al. / Physical Environments of the Luminosity Outburst Source NGC 6334I Traced by Thermal and Maser Lines of Multiple Molecules . In: Astrophysical Journal, Supplement Series. 2023 ; Vol. 265, No. 2.

BibTeX

@article{7b6816b2b69d452a90e4e0b6a4cb43ef,
title = "Physical Environments of the Luminosity Outburst Source NGC 6334I Traced by Thermal and Maser Lines of Multiple Molecules ",
abstract = "We have conducted a systematic line survey, primarily focused on transitions of the methanol and ammonia molecules, and monitoring observations of masers toward the high-mass star-forming region NGC 6334I. These observations were undertaken between 2019 and 2022 in the C, K, Ka, and Q bands with the Tianma Radio Telescope. In total, 63 CH3OH (including 11 class I and nine class II maser or maser candidate), 18 13CH3OH, and 34 NH3 (including seven maser or maser candidate) transitions were detected. The emission is likely associated with the luminosity outburst source MM1. Rotation diagram analysis of multiple ammonia transitions shows that the gas temperature in the molecular core was a factor of 2 higher than that measured in previous observations in the pre-burst stage. This suggests that the molecular core has likely been heated by radiation originating from the luminosity outburst. Maser variability in the methanol and excited-state OH masers shows a general trend that the maser components associated with the luminosity outburst have decreased in their intensity since 2020. The decay in the maser luminosity indicates that the outburst is possibly declining, and as a result, the duration of the MM1 luminosity outburst may be shorter than the predicted 40 yr duration. Compared to the masers detected toward another luminosity outburst source, G358.93-0.03, abundant class I methanol masers and strong water maser flares were also detected toward NGC 633I, but masers from rare class II methanol transitions and new molecules were absent toward NGC 6334I. The large number of detections of maser transitions toward the two burst sources provided a database for further maser modeling to explore the physical environments associated with accretion burst events. {\textcopyright} 2023. The Author(s). Published by the American Astronomical Society.",
author = "Jiong-heng Wu and Xi Chen and Yan-kun Zhang and Ellingsen, {Simon P.} and Sobolev, {Andrej M.} and Zhang Zhao and Shi-ming Song and Zhi-qiang Shen and Bin Li and Bo Xia and Rong-bin Zhao and Jing-qing Wang and Ya-jun Wu",
note = "This work is supported by the National Key R&D program of China (2022YFA1603102), the National Natural Science Foundation of China (11873002, 12011530065, 11590781). X.C. thanks Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (2019). This work is also supported by the Great Bay Center, National Astronomical Data Center. A.M.S. was supported by the Ministry of Science and Higher Education of the Russian Federation (state contract FEUZ-2023-0019).",
year = "2023",
doi = "10.3847/1538-4365/acbd46",
language = "English",
volume = "265",
journal = "Astrophysical Journal, Supplement Series",
issn = "0067-0049",
publisher = "Institute of Physics Publishing (IOP)",
number = "2",

}

RIS

TY - JOUR

T1 - Physical Environments of the Luminosity Outburst Source NGC 6334I Traced by Thermal and Maser Lines of Multiple Molecules 

AU - Wu, Jiong-heng

AU - Chen, Xi

AU - Zhang, Yan-kun

AU - Ellingsen, Simon P.

AU - Sobolev, Andrej M.

AU - Zhao, Zhang

AU - Song, Shi-ming

AU - Shen, Zhi-qiang

AU - Li, Bin

AU - Xia, Bo

AU - Zhao, Rong-bin

AU - Wang, Jing-qing

AU - Wu, Ya-jun

N1 - This work is supported by the National Key R&D program of China (2022YFA1603102), the National Natural Science Foundation of China (11873002, 12011530065, 11590781). X.C. thanks Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (2019). This work is also supported by the Great Bay Center, National Astronomical Data Center. A.M.S. was supported by the Ministry of Science and Higher Education of the Russian Federation (state contract FEUZ-2023-0019).

PY - 2023

Y1 - 2023

N2 - We have conducted a systematic line survey, primarily focused on transitions of the methanol and ammonia molecules, and monitoring observations of masers toward the high-mass star-forming region NGC 6334I. These observations were undertaken between 2019 and 2022 in the C, K, Ka, and Q bands with the Tianma Radio Telescope. In total, 63 CH3OH (including 11 class I and nine class II maser or maser candidate), 18 13CH3OH, and 34 NH3 (including seven maser or maser candidate) transitions were detected. The emission is likely associated with the luminosity outburst source MM1. Rotation diagram analysis of multiple ammonia transitions shows that the gas temperature in the molecular core was a factor of 2 higher than that measured in previous observations in the pre-burst stage. This suggests that the molecular core has likely been heated by radiation originating from the luminosity outburst. Maser variability in the methanol and excited-state OH masers shows a general trend that the maser components associated with the luminosity outburst have decreased in their intensity since 2020. The decay in the maser luminosity indicates that the outburst is possibly declining, and as a result, the duration of the MM1 luminosity outburst may be shorter than the predicted 40 yr duration. Compared to the masers detected toward another luminosity outburst source, G358.93-0.03, abundant class I methanol masers and strong water maser flares were also detected toward NGC 633I, but masers from rare class II methanol transitions and new molecules were absent toward NGC 6334I. The large number of detections of maser transitions toward the two burst sources provided a database for further maser modeling to explore the physical environments associated with accretion burst events. © 2023. The Author(s). Published by the American Astronomical Society.

AB - We have conducted a systematic line survey, primarily focused on transitions of the methanol and ammonia molecules, and monitoring observations of masers toward the high-mass star-forming region NGC 6334I. These observations were undertaken between 2019 and 2022 in the C, K, Ka, and Q bands with the Tianma Radio Telescope. In total, 63 CH3OH (including 11 class I and nine class II maser or maser candidate), 18 13CH3OH, and 34 NH3 (including seven maser or maser candidate) transitions were detected. The emission is likely associated with the luminosity outburst source MM1. Rotation diagram analysis of multiple ammonia transitions shows that the gas temperature in the molecular core was a factor of 2 higher than that measured in previous observations in the pre-burst stage. This suggests that the molecular core has likely been heated by radiation originating from the luminosity outburst. Maser variability in the methanol and excited-state OH masers shows a general trend that the maser components associated with the luminosity outburst have decreased in their intensity since 2020. The decay in the maser luminosity indicates that the outburst is possibly declining, and as a result, the duration of the MM1 luminosity outburst may be shorter than the predicted 40 yr duration. Compared to the masers detected toward another luminosity outburst source, G358.93-0.03, abundant class I methanol masers and strong water maser flares were also detected toward NGC 633I, but masers from rare class II methanol transitions and new molecules were absent toward NGC 6334I. The large number of detections of maser transitions toward the two burst sources provided a database for further maser modeling to explore the physical environments associated with accretion burst events. © 2023. The Author(s). Published by the American Astronomical Society.

UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85152358424

UR - https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=tsmetrics&SrcApp=tsm_test&DestApp=WOS_CPL&DestLinkType=FullRecord&KeyUT=000963024400001

U2 - 10.3847/1538-4365/acbd46

DO - 10.3847/1538-4365/acbd46

M3 - Article

VL - 265

JO - Astrophysical Journal, Supplement Series

JF - Astrophysical Journal, Supplement Series

SN - 0067-0049

IS - 2

M1 - 49

ER -

ID: 37492788