2020 Fiscal Year Annual Research Report
Star Formation Rates in the Galactic Center of the Milky Way
Project/Area Number |
18K13589
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Research Institution | National Astronomical Observatory of Japan |
Principal Investigator |
Lu Xing 国立天文台, アルマプロジェクト, 特任研究員 (40794425)
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Project Period (FY) |
2018-04-01 – 2021-03-31
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Keywords | Star Formation / Galactic Center |
Outline of Annual Research Achievements |
In FY2020, I published two papers based on ALMA observations of the Central Molecular Zone of our Milky Way (including one paper that was accepted in the previous fiscal year): Lu et al. 2020, ApJ Letters, 894, 14; Lu et al. 2021, ApJ, 909, 177). I found evidence of thermal Jeans fragmentation of 0.1-pc scale cores, and 43 protostellar outflows in clouds that were thought to be quiescent in terms of star formation. This is the first discovery of protostellar outflows outside of the Sgr B2 region in the Central Molecular Zone, although even taking these outflows into account, the star formation rates of these clouds are still lower than expected. These results were covered by ALMA research highlight, NAOJ news release, ALMA press release, Nature research highlight, NSF science news, etc. I also gave a remote seminar talk at Nagoya University to introduce my research to domestic researchers and establish collaborations. I remotely attended the East Asia ALMA science workshop in February 2021 to present a talk about these results.
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Remarks |
One more website: Universe Today news https://www.universetoday.com/150762/there-are-new-stars-forming-near-the-core-of-the-milky-way-despite-the-harsh-environment/
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Research Products
(12 results)
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[Journal Article] CMZoom: Survey Overview and First Data Release2020
Author(s)
Battersby Cara、Keto Eric、Walker Daniel、Barnes Ashley、Callanan Daniel、Ginsburg Adam、Hatchfield H Perry、Henshaw Jonathan、Kauffmann Jens、Kruijssen J. M. Diederik、Longmore Steven N.、Lu Xing、Mills Elisabeth A. C.、Pillai Thushara、Zhang Qizhou、et al.
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Journal Title
The Astrophysical Journal Supplement Series
Volume: 249
Pages: 35~35
DOI
Peer Reviewed / Open Access / Int'l Joint Research
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