VALES - IV. Exploring the transition of star formation efficiencies between normal and starburst galaxies using APEX/SEPIA Band-5 and ALMA at low redshift

doi:10.1093/mnras/stx3183

CORC > 国家天文台 > 中国科学院国家天文台

	VALES - IV. Exploring the transition of star formation efficiencies between normal and starburst galaxies using APEX/SEPIA Band-5 and ALMA at low redshift
	Cheng, C.1,2; Ibar, E.1; Hughes, T. M.1,2,3,4; Villanueva, V.1; Leiton, R.1; Orellana, G.1; Munoz Arancibia, A.1; Lu, N.2; Xu, C. K.2; Willmer, C. N. A.5
刊名	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2018-03-01
卷号	475 期号:1 页码:248-256
关键词	galaxies: ISM galaxies: starburst galaxies: star formation submillimetre: galaxies
ISSN号	0035-8711
DOI	10.1093/mnras/stx3183
英文摘要	In this work, we present new the Swedish-ESO PI receiver for the Atacama Pathfinder Experiment APEX/SEPIA Band-5 observations targeting the CO (J = 2-1) emission line of 24 Herschel-detected galaxies at z = 0.1-0.2. Combining this sample with our recent new Valparafso ALMA Line Emission Survey (VALES), we investigate the star formation efficiencies [SFEs = star formation rate (SFR)/M-H2] of galaxies at low redshift. We find the SFE of our sample bridges the gap between normal star-forming galaxies and Ultra-Luminous Infrared Galaxies (ULIRGs), which are thought to be triggered by different star formation modes. Considering the SFE' as the SFR and the L'(CO) ratio, our data show a continuous and smooth increment as a function of infrared luminosity (or star formation rate) with a scatter about 0.5 dex, instead of a steep jump with a bimodal behaviour. This result is due to the use of a sample with a much larger range of sSFR/sSFR(ms) using LIRGs, with luminosities covering the range between normal and ULIRGs. We conclude that the main parameters controlling the scatter of the SFE in star-forming galaxies are the systematic uncertainty of the alpha(CO) conversion factor, the gas fraction, and physical size.
资助项目	Chinese Academy of Sciences (CAS) through the CASSACA Postdoc Grant ; CONICYT/ALMA funding Program in Astronomy/PCI Project[31140020] ; FONDECYT[1171710] ; Chinese Academy of Sciences (CAS) ; National Commission for Scientific and Technological Research of Chile (CONICYT) through a CAS-CONICYT Joint Postdoctoral Fellowship ; Comite Mixto ESO-GOBIERNO DE CHILE ; GEMINI-CONICYT FUND[32130024] ; CONICYT (Chile) through FONDECYT postdoctoral research grant[3170942] ; CONICYT (Chile) through FONDECYT postdoctoral research grant[3160776] ; NSFC[11673028] ; National Key R&D Program of China[2017YFA0402704] ; [NSFC-11643003] ; [NSFC-11473026] ; [11421303]
WOS关键词	CO-H2 CONVERSION FACTOR ; MOLECULAR GAS ; INFRARED GALAXIES ; FORMING GALAXIES ; MODEL ; LINE
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	OXFORD UNIV PRESS
WOS记录号	WOS:000427144200020
资助机构	Chinese Academy of Sciences (CAS) through the CASSACA Postdoc Grant ; Chinese Academy of Sciences (CAS) through the CASSACA Postdoc Grant ; CONICYT/ALMA funding Program in Astronomy/PCI Project ; CONICYT/ALMA funding Program in Astronomy/PCI Project ; FONDECYT ; FONDECYT ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Commission for Scientific and Technological Research of Chile (CONICYT) through a CAS-CONICYT Joint Postdoctoral Fellowship ; National Commission for Scientific and Technological Research of Chile (CONICYT) through a CAS-CONICYT Joint Postdoctoral Fellowship ; Comite Mixto ESO-GOBIERNO DE CHILE ; Comite Mixto ESO-GOBIERNO DE CHILE ; GEMINI-CONICYT FUND ; GEMINI-CONICYT FUND ; CONICYT (Chile) through FONDECYT postdoctoral research grant ; CONICYT (Chile) through FONDECYT postdoctoral research grant ; NSFC ; NSFC ; National Key R&D Program of China ; National Key R&D Program of China ; Chinese Academy of Sciences (CAS) through the CASSACA Postdoc Grant ; Chinese Academy of Sciences (CAS) through the CASSACA Postdoc Grant ; CONICYT/ALMA funding Program in Astronomy/PCI Project ; CONICYT/ALMA funding Program in Astronomy/PCI Project ; FONDECYT ; FONDECYT ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Commission for Scientific and Technological Research of Chile (CONICYT) through a CAS-CONICYT Joint Postdoctoral Fellowship ; National Commission for Scientific and Technological Research of Chile (CONICYT) through a CAS-CONICYT Joint Postdoctoral Fellowship ; Comite Mixto ESO-GOBIERNO DE CHILE ; Comite Mixto ESO-GOBIERNO DE CHILE ; GEMINI-CONICYT FUND ; GEMINI-CONICYT FUND ; CONICYT (Chile) through FONDECYT postdoctoral research grant ; CONICYT (Chile) through FONDECYT postdoctoral research grant ; NSFC ; NSFC ; National Key R&D Program of China ; National Key R&D Program of China ; Chinese Academy of Sciences (CAS) through the CASSACA Postdoc Grant ; Chinese Academy of Sciences (CAS) through the CASSACA Postdoc Grant ; CONICYT/ALMA funding Program in Astronomy/PCI Project ; CONICYT/ALMA funding Program in Astronomy/PCI Project ; FONDECYT ; FONDECYT ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Commission for Scientific and Technological Research of Chile (CONICYT) through a CAS-CONICYT Joint Postdoctoral Fellowship ; National Commission for Scientific and Technological Research of Chile (CONICYT) through a CAS-CONICYT Joint Postdoctoral Fellowship ; Comite Mixto ESO-GOBIERNO DE CHILE ; Comite Mixto ESO-GOBIERNO DE CHILE ; GEMINI-CONICYT FUND ; GEMINI-CONICYT FUND ; CONICYT (Chile) through FONDECYT postdoctoral research grant ; CONICYT (Chile) through FONDECYT postdoctoral research grant ; NSFC ; NSFC ; National Key R&D Program of China ; National Key R&D Program of China ; Chinese Academy of Sciences (CAS) through the CASSACA Postdoc Grant ; Chinese Academy of Sciences (CAS) through the CASSACA Postdoc Grant ; CONICYT/ALMA funding Program in Astronomy/PCI Project ; CONICYT/ALMA funding Program in Astronomy/PCI Project ; FONDECYT ; FONDECYT ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Commission for Scientific and Technological Research of Chile (CONICYT) through a CAS-CONICYT Joint Postdoctoral Fellowship ; National Commission for Scientific and Technological Research of Chile (CONICYT) through a CAS-CONICYT Joint Postdoctoral Fellowship ; Comite Mixto ESO-GOBIERNO DE CHILE ; Comite Mixto ESO-GOBIERNO DE CHILE ; GEMINI-CONICYT FUND ; GEMINI-CONICYT FUND ; CONICYT (Chile) through FONDECYT postdoctoral research grant ; CONICYT (Chile) through FONDECYT postdoctoral research grant ; NSFC ; NSFC ; National Key R&D Program of China ; National Key R&D Program of China
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/37153]
专题	中国科学院国家天文台
通讯作者	Cheng, C.; Ibar, E.; Hughes, T. M.
作者单位	1.Univ Valparaiso, Inst Fis & Astron, Avda Gran Bretana 1111, Valparaiso, Chile 2.Chinese Acad Sci, South Amer Ctr Astron, China Chile Joint Ctr Astron, Natl Astron Observ, Beijing 100012, Peoples R China 3.Univ Sci & Technol China, Dept Astron, CAS Key Lab Res Galaxies & Cosmol, Hefei 230026, Anhui, Peoples R China 4.Univ Sci & Technol China, Sch Astron & Space Sci, Hefei 230026, Anhui, Peoples R China 5.Univ Arizona, Steward Observ, 933 N Cherry Ave, Tucson, AZ 85721 USA 6.European Southern Observ, Alonso Cordova 3107,Casilla 19001, Santiago 19, Chile 7.Chinese Acad Sci, Key Lab Radio Astron, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China 8.Univ Paris Saclay, Univ Paris Sud, CNRS, Inst Astrophys Spatiale, Bat 121, F-91405 Orsay, France
推荐引用方式 GB/T 7714	Cheng, C.,Ibar, E.,Hughes, T. M.,et al. VALES - IV. Exploring the transition of star formation efficiencies between normal and starburst galaxies using APEX/SEPIA Band-5 and ALMA at low redshift[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2018,475(1):248-256.
APA	Cheng, C..,Ibar, E..,Hughes, T. M..,Villanueva, V..,Leiton, R..,...&Torstensson, K..(2018).VALES - IV. Exploring the transition of star formation efficiencies between normal and starburst galaxies using APEX/SEPIA Band-5 and ALMA at low redshift.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,475(1),248-256.
MLA	Cheng, C.,et al."VALES - IV. Exploring the transition of star formation efficiencies between normal and starburst galaxies using APEX/SEPIA Band-5 and ALMA at low redshift".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 475.1(2018):248-256.