On the Scarcity of Dense Cores (n > 105 cm-3) in High-latitude Planck Galactic Cold Clumps

doi:10.3847/2041-8213/ad21e6

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	On the Scarcity of Dense Cores (n > 105 cm-3) in High-latitude Planck Galactic Cold Clumps
	Xu, Fengwei 39,40; Wang, Ke 40; Liu, Tie 38; Eden, David 37; Liu, Xunchuan 38; Juvela, Mika 36; He JH(何金华)33,34,35; Johnstone, Doug 31,32; Goldsmith, Paul 30; Garay, Guido 33
刊名	ASTROPHYSICAL JOURNAL LETTERS
	2024-03-01
卷号	963 期号:1
ISSN号	2041-8205
DOI	10.3847/2041-8213/ad21e6
产权排序	第6完成单位
文献子类	Article
英文摘要	High-latitude (divided by b divided by > 30 degrees) molecular clouds have virial parameters that exceed 1, but whether these clouds can form stars has not been studied systematically. Using JCMT SCUBA-2 archival data, we surveyed 70 fields that target high-latitude Planck Galactic cold clumps (HLPCs) to find dense cores with density of 10(5)-10(6) cm(-3) and size of <0.1 pc. The sample benefits from both the representativeness of the parent sample and its coverage of the densest clumps at the high column density end (>1 x 10(21) cm(-2)). At an average rms of 15 mJy beam(-1), we detected Galactic dense cores in only one field, G6.04+36.77 (L183) while also identifying 12 extragalactic objects and two young stellar objects. Compared to the low-latitude clumps, dense cores are scarce in HLPCs. With synthetic observations, the densities of cores are constrained to be n(c) less than or similar to 10(5) cm(-3) should they exist in HLPCs. Low-latitude clumps, Taurus clumps, and HLPCs form a sequence where a higher virial parameter corresponds to a lower dense-core detection rate. If HLPCs were affected by the Local Bubble, the scarcity should favor turbulence-inhibited rather than supernova-driven star formation. Studies of the formation mechanism of the L183 molecular cloud are warranted.
学科主题	天文学
URL标识	查看原文
出版地	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
资助项目	National Key R&D Program of China[2022YFA1603102]; National Key R&D Program of China[2019YFA0405100]; National Science Foundation of China[12033005]; National Science Foundation of China[11973013]; China Manned Space Project[CMS-CSST-2021-A09]; China Manned Space Project[CMS-CSST-2021-B06]; China-Chile Joint Research Fund(CCJRF)[2211]; Chinese Academy of Sciences South America Center for Astronomy (CASSACA); National Astronomical Observatories, Chinese Academy of Sciences (NAOC); Chilean Astronomy Society (SOCHIAS); International partnership program of Chinese academy of sciences[114231KYSB20200009]; Shanghai Pujiang Program[20PJ1415500]; Ministry of Science and Technology of Taiwan[80NM0018D0004]; Jet Propulsion Laboratory; Science and Technology Facilities Council of the United Kingdom; Chinese Academy of Sciences (CAS); Canada Foundation for Innovation; NRC Canada; NSERC Discovery grant; ANID BASAL project[FB210003]; European Council, under the European Community[JP22H01271]; KAKENHI[JP23H01221]; KAKENHI[NRF-2019R1A2C1010851]; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology[348342]; Emeritus Fellowship from The Leverhulme Trust; Research Council of Finland[112-2112-M-007 -011]; NOIRLab; National Science Foundation; National Science and Technology Council (NSTC) of Taiwan
WOS关键词	ISOLATED STAR-FORMATION ; ALL-SKY SURVEY ; 3D DUST MAP ; MOLECULAR CLOUDS ; DARK CLOUDS ; INITIAL CONDITIONS ; CATALOG ; SCUBA-2 ; GAS ; DISTANCES
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:001176142300001
资助机构	National Key R&D Program of China[2022YFA1603102, 2019YFA0405100] ; National Science Foundation of China[12033005, 11973013] ; China Manned Space Project[CMS-CSST-2021-A09, CMS-CSST-2021-B06] ; China-Chile Joint Research Fund(CCJRF)[2211] ; Chinese Academy of Sciences South America Center for Astronomy (CASSACA) ; National Astronomical Observatories, Chinese Academy of Sciences (NAOC) ; Chilean Astronomy Society (SOCHIAS) ; International partnership program of Chinese academy of sciences[114231KYSB20200009] ; Shanghai Pujiang Program[20PJ1415500] ; Ministry of Science and Technology of Taiwan[80NM0018D0004] ; Jet Propulsion Laboratory ; Science and Technology Facilities Council of the United Kingdom ; Chinese Academy of Sciences (CAS) ; Canada Foundation for Innovation ; NRC Canada ; NSERC Discovery grant ; ANID BASAL project[FB210003] ; European Council, under the European Community[JP22H01271] ; KAKENHI[JP23H01221, NRF-2019R1A2C1010851] ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology[348342] ; Emeritus Fellowship from The Leverhulme Trust ; Research Council of Finland[112-2112-M-007 -011] ; NOIRLab ; National Science Foundation ; National Science and Technology Council (NSTC) of Taiwan[2017YFA0402700] ; [742719] ; [NSTC 111-2112-M-001-060]
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ynao.ac.cn/handle/114a53/26559]
专题	云南天文台_其他
作者单位	1.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, People's Republic of China; 2.Institute of Physics and Astronomy, Eötvös Lorànd University, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary 3.Indian Institute of Science Education and Research (IISER) Tirupati, Rami Reddy Nagar, Karakambadi Road, Mangalam (P.O.), Tirupati 517 507, India; 4.Jeremiah Horrocks Institute, University of Central Lancashire, Preston PR1 2HE, UK; 5.Xinjiang Key Laboratory of Radio Astrophysics, Urumqi 830011, People's Republic of China; 6.Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, Urumqi 830011, People's Republic of China; 7.XingJiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi 830011, People's Republic of China; 8.Guizhou Radio Astronomical Observatory, Guizhou University, Guiyang 550000, People's Republic of China; 9.Nobeyama Radio Observatory, National Astronomical Observatory of Japan, National Institutes of Natural Sciences, 462-2 Nobeyama, Minamimaki, Minamisaku, Nagano 384-1305, Japan; 10.University of Science and Technology, Korea (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea;
推荐引用方式 GB/T 7714	Xu, Fengwei,Wang, Ke,Liu, Tie,et al. On the Scarcity of Dense Cores (n > 105 cm-3) in High-latitude Planck Galactic Cold Clumps[J]. ASTROPHYSICAL JOURNAL LETTERS,2024,963(1).
APA	Xu, Fengwei.,Wang, Ke.,Liu, Tie.,Eden, David.,Liu, Xunchuan.,...&Tóth, L. Viktor.(2024).On the Scarcity of Dense Cores (n > 105 cm-3) in High-latitude Planck Galactic Cold Clumps.ASTROPHYSICAL JOURNAL LETTERS,963(1).
MLA	Xu, Fengwei,et al."On the Scarcity of Dense Cores (n > 105 cm-3) in High-latitude Planck Galactic Cold Clumps".ASTROPHYSICAL JOURNAL LETTERS 963.1(2024).