YNAO OpenIR  > 丽江天文观测站(南方基地)
The MALATANG survey: dense gas and star formation from high-transition HCN and HCO+ maps of NGC 253
Jiang, Xue-Jian1; Greve, Thomas R.2,3; Gao, Yu1,4; Zhang, Zhi-Yu5; Tan, Qinghua1; de Grijs, Richard6,7,8; Ho, Luis C.9,10; Michalowski, Michal J.11; Currie, Malcolm J.12; Wilson, Christine D.13; Brinks, Elias14; Ao, Yiping1; Zhao YH(赵应和)15,16; He JH(何金华)15,17,18; Harada, Nanase19; Yang, Chentao20; Jiao, Qian1; Chung, Aeree21; Lee, Bumhyun9,21; Smith, Matthew W. L.22; Liu, Daizhong23; Matsushita, Satoki19; Shi, Yong24; Imanishi, Masatoshi25; Rawlings, Mark G.26; Zhu, Ming27; Eden, David28; Davis, Timothy A.22; Li, Xiaohu29
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2020-05-01
Volume494Issue:1Pages:1276-1296
DOI10.1093/mnras/staa794
Contribution Rank第15完成单位
Indexed BySCI
KeywordISM: molecules galaxies: individual: NGC 253 galaxies: ISM galaxies: star formation submillimetre: ISM
Abstract

To study the high-transition dense-gas tracers and their relationships to the star formation of the inner similar to 2 kpc circumnuclear region of NGC 253, we present HCN J = 4-3 and HCO+ J = 4-3 maps obtained with the James Clerk Maxwell Telescope. Using the spatially resolved data, we compute the concentration indices r(90)/r(50) for the different tracers. HCN and HCO+ 4-3 emission features tend to be centrally concentrated, which is in contrast to the shallower distribution of CO 1-0 and the stellar component. The dense-gas fraction (f(dense), traced by v the velocity-integrated-intensity ratios of HCN/CO and HCO+/CO) and the ratio R-31 (CO 3-2 / 1 -0) decline towards larger galactocentric distances, but increase with higher star formation rate surface density. The radial variation and the large scatter of f(dense )- dense and R31 imply distinct physical conditions in different regions of the galactic disc. The relationships of f(dense) versus Sigma(stellar) and SFEdense versus Sigma(stellar) are explored. SFEdense increases with higher Sigma(stellar) in this galaxy, which is inconsistent with previous work that used HCN 1-0 data. This implies that existing stellar components might have different effects on the high-J HCN and HCO+ than their low-J emission. We also find that SFE(dense )seems to be decreasing with higher f(dense) which is consistent with previous works, and it suggests that the ability of the dense gas to form stars diminishes when the average density of the gas increases. This is expected in a scenario where only the regions with high-density contrast collapse and form stars.

Funding ProjectNational Key R&D Program of China[2017YFA0402704] ; National Key R&D Program of China[2016YFA0400702] ; National Key R&D Program of China[2017YFA0402700] ; National Natural Science Foundation of China[11861131007] ; National Natural Science Foundation of China[11420101002] ; National Natural Science Foundation of China[11603075] ; National Natural Science Foundation of China[11721303] ; National Natural Science Foundation of China[U1731237] ; National Natural Science Foundation of China[11933011] ; National Natural Science Foundation of China[11673057] ; Chinese Academy of Sciences Key Research Program of Frontier Sciences[QYZDJSSW-SLH008] ; National Science Centre, Poland[2018/30/E/ST9/00208] ; Natural Sciences and Engineering Research Council of Canada ; Canada Research Chairs program ; NSFC[11873086] ; NSFC[U1631237] ; Yunnan Province of China[2017HC018] ; Ministry of Science and Technology (MOST) of Taiwan[MOST 107-2119-M-001-020] ; Chinese Academy of Sciences (CAS) ; Science and Technology Facilities Council of the United Kingdom
Funding OrganizationNational Key R&D Program of China[2017YFA0402704, 2016YFA0400702, 2017YFA0402700] ; National Natural Science Foundation of China[11861131007, 11420101002, 11603075, 11721303, U1731237, 11933011, 11673057] ; Chinese Academy of Sciences Key Research Program of Frontier Sciences[QYZDJSSW-SLH008] ; National Science Centre, Poland[2018/30/E/ST9/00208] ; Natural Sciences and Engineering Research Council of Canada ; Canada Research Chairs program ; NSFC[11873086, U1631237] ; Yunnan Province of China[2017HC018] ; Ministry of Science and Technology (MOST) of Taiwan[MOST 107-2119-M-001-020] ; Chinese Academy of Sciences (CAS) ; Science and Technology Facilities Council of the United Kingdom
Language英语
Subject Area天文学 ; 星系与宇宙学 ; 星系天文学 ; 星系形成与演化 ; 恒星与银河系 ; 恒星形成与演化
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherOXFORD UNIV PRESS
Publication PlaceGREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
ISSN0035-8711
URL查看原文
WOS IDWOS:000535885900100
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordMOLECULAR GAS ; NEARBY GALAXIES ; SPIRAL GALAXIES ; STARBURST ; TRACERS ; LUMINOSITY ; NUCLEUS ; NGC-253
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/23367
Collection丽江天文观测站(南方基地)
中国科学院天体结构与演化重点实验室
Corresponding AuthorJiang, Xue-Jian
Affiliation1.Purple Mountain Observatory & Key Laboratory for Radio Astronomy, Chinese Academy of Sciences, 10 Yuanhua Road, Nanjing 210033, People’s Republic of China
2.Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK
3.Cosmic Dawn Center (DAWN), Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
4.Department of Astronomy, Xiamen University, Xiamen, Fujian 361005, People’s Republic of China
5.European Southern Observatory, Karl-Schwarzschild-Str 2, D-85748 Garching, Germany
6.Department of Physics & Astronomy, Macquarie University, Balaclava Road, Sydney, NSW 2109, Australia
7.Centre for Astronomy, Astrophysics and Astrophotonics, Macquarie University, Balaclava Road, Sydney, NSW 2109, Australia
8.International Space Science Institute–Beijing, Nanertiao, Zhongguancun, Hai Dian District, Beijing 100190, People’s Republic of China
9.Int Space Sci Inst Beijing, Beijing 100190, Peoples R China
10.Department of Astronomy, School of Physics, Peking University, Beijing 100871, People’s Republic of China
11.Astronomical Observatory Institute, Faculty of Physics, Adam Mickiewicz University, ul. Słoneczna 36, PL-60-286 Poznan, Poland
12.RAL Space, Rutherford Appleton Laboratory, Harwell Campus, Didcot, Oxfordshire OX11 0QX, UK
13.Department of Physics and Astronomy, McMaster University, Hamilton, ON L8S 4M1, Canada
14.Centre for Astrophysics Research, University of Hertfordshire, College Lane, Hatfield AL10 9AB, UK
15.Yunnan Observatories & Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, People’s Republic of China
16.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, People’s Republic of China
17.Chinese Academy of Sciences South America Center for Astronomy, National Astronomical Observatories, CAS, Beijing 100101, People’s Republic of China
18.Departamento de Astronom´ıa, Universidad de Chile, Casilla 36-D, Santiago, Chile
19.Institute of Astronomy and Astrophysics, Academia Sinica, 11F of Astronomy-Mathematics Building, AS/NTU, No.1, Section 4, Roosevelt Rd, Taipei 10617, Taiwan, R.O.C.
20.European Southern Observatory, Alonso de Cordova 3107, Vitacura, ´ Casilla 19001, Santiago de Chile, Chile
21.Department of Astronomy, Yonsei University, 50 Yonsei-ro, Seodaemungu, Seoul 03722, Republic of Korea
22.School of Physics and Astronomy, Cardiff University, The Parade, Cardiff CF24 3AA, UK
23.Max-Planck-Institut fur Astronomie, K ¨ onigstuhl 17, D-69117 Heidelberg, ¨ Germany
24.School of Astronomy and Space Science, Nanjing University, Nanjing 210093, People’s Republic of China
25.National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
26.East Asian Observatory, 660 N. A’ohok¯ o Place, Hilo, HI 96720-2700, ¯ USA
27.National Astronomical Observatories & Key Lab of Radio Astronomy, Chinese Academy of Sciences, Beijing 100012, People’s Republic of China
28.Astrophysics Research Institute, Liverpool John Moores University, IC2, Liverpool Science Park, 146 Brownlow Hill, Liverpool L3 5RF, UK
29.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, People’s Republic of China
Recommended Citation
GB/T 7714
Jiang, Xue-Jian,Greve, Thomas R.,Gao, Yu,et al. The MALATANG survey: dense gas and star formation from high-transition HCN and HCO+ maps of NGC 253[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2020,494(1):1276-1296.
APA Jiang, Xue-Jian.,Greve, Thomas R..,Gao, Yu.,Zhang, Zhi-Yu.,Tan, Qinghua.,...&Li, Xiaohu.(2020).The MALATANG survey: dense gas and star formation from high-transition HCN and HCO+ maps of NGC 253.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,494(1),1276-1296.
MLA Jiang, Xue-Jian,et al."The MALATANG survey: dense gas and star formation from high-transition HCN and HCO+ maps of NGC 253".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 494.1(2020):1276-1296.
Files in This Item:
File Name/Size DocType Version Access License
The MALATANG survey_(9338KB)期刊论文出版稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Jiang, Xue-Jian]'s Articles
[Greve, Thomas R.]'s Articles
[Gao, Yu]'s Articles
Baidu academic
Similar articles in Baidu academic
[Jiang, Xue-Jian]'s Articles
[Greve, Thomas R.]'s Articles
[Gao, Yu]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Jiang, Xue-Jian]'s Articles
[Greve, Thomas R.]'s Articles
[Gao, Yu]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: The MALATANG survey_ dense gas and star formation from high-transition HCN and HCO+ maps of NGC 253.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.