NAOC Open IR  > 光学天文研究部
Spectroscopic Observation and Analysis of HII Regions in M33 with MMT: Temperatures and Oxygen Abundances
Lin, Zesen1,2; Hu, Ning1,2; Kong, Xu1,2; Gao, Yulong1,2; Zou, Hu3; Wang, Enci1,2; Cheng, Fuzhen1,2; Fang, Guanwen4; Lin, Lin5; Wang, Jing6
2017-06-20
Source PublicationASTROPHYSICAL JOURNAL
Volume842Issue:2
AbstractThe spectra of 413 star-forming (or H II) regions in M33 (NGC 598) were observed using the multifiber spectrograph of Hectospec at the 6.5 m Multiple Mirror Telescope. Using this homogeneous spectra sample, we measured the intensities of emission lines and some physical parameters, such as electron temperatures, electron densities, and metallicities. Oxygen abundances were derived via the direct method (when available) and two empirical strong-line methods, namely, O3N2 and N2. At the high-metallicity end, oxygen abundances derived from the O3N2 calibration were higher than those derived from the N2 index, indicating an inconsistency between O3N2 and N2 calibrations. We present a detailed analysis of the spatial distribution of gas-phase oxygen abundances in M33 and confirm the existence of the axisymmetric global metallicity distribution that is widely assumed in the literature. Local variations were also observed and subsequently associated with spiral structures to provide evidence of radial migration driven by arms. Our O/H gradient fitted out to 1.1 R-25 resulted in slopes of -0.17 +/- 0.03, -0.19 +/- 0.01, and -0.16 +/- 0.17 dex R-25(-1), utilizing abundances from O3N2, N2 diagnostics, and a direct method, respectively.
SubtypeArticle
KeywordGalaxies: Abundances Galaxies: Evolution Galaxies: Individual (M33) Galaxies: Ism Galaxies: Spiral h Ii Regions
WOS HeadingsScience & Technology ; Physical Sciences
Funding OrganizationNational Astronomical Observatories of China ; National Astronomical Observatories of China ; Chinese Academy of Sciences (Strategic Priority Research Program, "The Emergence of Cosmological Structures")(XDB09000000) ; Chinese Academy of Sciences (Strategic Priority Research Program, "The Emergence of Cosmological Structures")(XDB09000000) ; Special Fund for Astronomy from the Ministry of Finance ; Special Fund for Astronomy from the Ministry of Finance ; National Basic Research Program of China (973 Program)(2015CB857004) ; National Basic Research Program of China (973 Program)(2015CB857004) ; National Natural Science Foundation of China (NSFC)(1320101002 ; National Natural Science Foundation of China (NSFC)(1320101002 ; Yunnan Applied Basic Research Projects(2014FB155) ; Yunnan Applied Basic Research Projects(2014FB155) ; Youth Innovation Fund by the University of Science and Technology of China(WK2030220019) ; Youth Innovation Fund by the University of Science and Technology of China(WK2030220019) ; 11433005 ; 11433005 ; 11421303 ; 11421303 ; 11673004) ; 11673004) ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; Chinese Academy of Sciences (Strategic Priority Research Program, "The Emergence of Cosmological Structures")(XDB09000000) ; Chinese Academy of Sciences (Strategic Priority Research Program, "The Emergence of Cosmological Structures")(XDB09000000) ; Special Fund for Astronomy from the Ministry of Finance ; Special Fund for Astronomy from the Ministry of Finance ; National Basic Research Program of China (973 Program)(2015CB857004) ; National Basic Research Program of China (973 Program)(2015CB857004) ; National Natural Science Foundation of China (NSFC)(1320101002 ; National Natural Science Foundation of China (NSFC)(1320101002 ; Yunnan Applied Basic Research Projects(2014FB155) ; Yunnan Applied Basic Research Projects(2014FB155) ; Youth Innovation Fund by the University of Science and Technology of China(WK2030220019) ; Youth Innovation Fund by the University of Science and Technology of China(WK2030220019) ; 11433005 ; 11433005 ; 11421303 ; 11421303 ; 11673004) ; 11673004)
DOI10.3847/1538-4357/aa6f14
WOS KeywordH-II REGIONS ; EXCITATION COLLISION STRENGTHS ; NEARBY SPIRAL GALAXIES ; STAR-FORMING GALAXIES ; STELLAR POPULATION ; TRANSITION-PROBABILITIES ; AZIMUTHAL VARIATIONS ; COMPOSITION GRADIENT ; CHEMICAL ABUNDANCES ; STARBURST GALAXIES
Indexed BySCI
Language英语
Funding OrganizationNational Astronomical Observatories of China ; National Astronomical Observatories of China ; Chinese Academy of Sciences (Strategic Priority Research Program, "The Emergence of Cosmological Structures")(XDB09000000) ; Chinese Academy of Sciences (Strategic Priority Research Program, "The Emergence of Cosmological Structures")(XDB09000000) ; Special Fund for Astronomy from the Ministry of Finance ; Special Fund for Astronomy from the Ministry of Finance ; National Basic Research Program of China (973 Program)(2015CB857004) ; National Basic Research Program of China (973 Program)(2015CB857004) ; National Natural Science Foundation of China (NSFC)(1320101002 ; National Natural Science Foundation of China (NSFC)(1320101002 ; Yunnan Applied Basic Research Projects(2014FB155) ; Yunnan Applied Basic Research Projects(2014FB155) ; Youth Innovation Fund by the University of Science and Technology of China(WK2030220019) ; Youth Innovation Fund by the University of Science and Technology of China(WK2030220019) ; 11433005 ; 11433005 ; 11421303 ; 11421303 ; 11673004) ; 11673004) ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; Chinese Academy of Sciences (Strategic Priority Research Program, "The Emergence of Cosmological Structures")(XDB09000000) ; Chinese Academy of Sciences (Strategic Priority Research Program, "The Emergence of Cosmological Structures")(XDB09000000) ; Special Fund for Astronomy from the Ministry of Finance ; Special Fund for Astronomy from the Ministry of Finance ; National Basic Research Program of China (973 Program)(2015CB857004) ; National Basic Research Program of China (973 Program)(2015CB857004) ; National Natural Science Foundation of China (NSFC)(1320101002 ; National Natural Science Foundation of China (NSFC)(1320101002 ; Yunnan Applied Basic Research Projects(2014FB155) ; Yunnan Applied Basic Research Projects(2014FB155) ; Youth Innovation Fund by the University of Science and Technology of China(WK2030220019) ; Youth Innovation Fund by the University of Science and Technology of China(WK2030220019) ; 11433005 ; 11433005 ; 11421303 ; 11421303 ; 11673004) ; 11673004)
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000403655500004
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/8813
Collection光学天文研究部
Affiliation1.Univ Sci & Technol China, Dept Astron, CAS Key Lab Res Galaxies & Cosmol, Hefei 230026, Peoples R China
2.Univ Sci & Technol China, Sch Astron & Space Sci, Hefei 230026, Peoples R China
3.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
4.Dali Univ, Inst Astron & Hist Sci & Technol, Dali 671003, Peoples R China
5.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
6.CSIRO Astron & Space Sci, Australia Telescope Natl Facil, POB 76, Epping, NSW 1710, Australia
Recommended Citation
GB/T 7714
Lin, Zesen,Hu, Ning,Kong, Xu,et al. Spectroscopic Observation and Analysis of HII Regions in M33 with MMT: Temperatures and Oxygen Abundances[J]. ASTROPHYSICAL JOURNAL,2017,842(2).
APA Lin, Zesen.,Hu, Ning.,Kong, Xu.,Gao, Yulong.,Zou, Hu.,...&Wang, Jing.(2017).Spectroscopic Observation and Analysis of HII Regions in M33 with MMT: Temperatures and Oxygen Abundances.ASTROPHYSICAL JOURNAL,842(2).
MLA Lin, Zesen,et al."Spectroscopic Observation and Analysis of HII Regions in M33 with MMT: Temperatures and Oxygen Abundances".ASTROPHYSICAL JOURNAL 842.2(2017).
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Lin, Zesen]'s Articles
[Hu, Ning]'s Articles
[Kong, Xu]'s Articles
Baidu academic
Similar articles in Baidu academic
[Lin, Zesen]'s Articles
[Hu, Ning]'s Articles
[Kong, Xu]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Lin, Zesen]'s Articles
[Hu, Ning]'s Articles
[Kong, Xu]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

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