NAOC Open IR  > 星系宇宙学研究部
Long-slit Spectroscopy of Edge-on Low Surface Brightness Galaxies
Du, Wei1; Wu, Hong1; Zhu, Yinan1; Zheng, WeiKang2; Filippenko, Alexei V.2
2017-03-10
Source PublicationASTROPHYSICAL JOURNAL
Volume837Issue:2
AbstractWe present long-slit optical spectra of 12 edge-on low surface brightness galaxies (LSBGs) positioned along their major axes. After performing reddening corrections for the emission-line fluxes measured from the extracted integrated spectra, we measured the gas-phase metallicities of our LSBG sample using both the [N II]/ Ha and the R-23 diagnostics. Both sets of oxygen abundances show good agreement with each other, giving a median value of 12. +. log(O/H). =. 8.26 dex. In the luminosity-metallicity plot, our LSBG sample is consistent with the behavior of normal galaxies. In the mass-metallicity diagram, our LSBG sample has lower metallicities for lower stellar mass, similar to normal galaxies. The stellar masses estimated from z-band luminosities are comparable to those of prominent spirals. In a plot of the gas mass fraction versus metallicity, our LSBG sample generally agrees with other samples in the high gas mass fraction space. Additionally, we have studied stellar populations of three LSBGs, which have relatively reliable spectral continua and high signal-to-noise ratios, and qualitatively conclude that they have a potential dearth of stars with ages < 1 Gyr instead of being dominated by stellar populations with ages > 1 Gyr. Regarding the chemical evolution of our sample, the LSBG data appear to allow for up to 30% metal loss, but we cannot completely rule out the closed-box model. Additionally, we find evidence that our galaxies retain up to about three times as much of their metals compared with dwarfs, consistent with metal retention being related to galaxy mass. In conclusion, our data support the view that LSBGs are probably just normal disk galaxies continuously extending to the low end of surface brightness.
SubtypeArticle
KeywordGalaxies: Abundances Galaxies: Evolution Galaxies: Star Formation Galaxies: Stellar Content Methods: Observational Techniques: Imaging Spectroscopy
WOS HeadingsScience & Technology ; Physical Sciences
Funding OrganizationNational Astronomical Observatories of China ; National Astronomical Observatories of China ; Chinese Academy of Sciences(XDB09000000) ; Chinese Academy of Sciences(XDB09000000) ; Special Fund for Astronomy from Ministry of Finance ; Special Fund for Astronomy from Ministry of Finance ; National Natural Science Foundation of China(11403037 ; National Natural Science Foundation of China(11403037 ; Strategic Priority Research Program "The Emergence of Cosmological Structures" of the Chinese Academy of Sciences(XDB09000000) ; Strategic Priority Research Program "The Emergence of Cosmological Structures" of the Chinese Academy of Sciences(XDB09000000) ; Key Laboratory of Optical Astronomy, NAOC ; Key Laboratory of Optical Astronomy, NAOC ; Christopher R. Redlich Fund ; Christopher R. Redlich Fund ; TABASGO Foundation ; TABASGO Foundation ; NSF(AST-1211916) ; NSF(AST-1211916) ; 11225316 ; 11225316 ; 11173030) ; 11173030) ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; Chinese Academy of Sciences(XDB09000000) ; Chinese Academy of Sciences(XDB09000000) ; Special Fund for Astronomy from Ministry of Finance ; Special Fund for Astronomy from Ministry of Finance ; National Natural Science Foundation of China(11403037 ; National Natural Science Foundation of China(11403037 ; Strategic Priority Research Program "The Emergence of Cosmological Structures" of the Chinese Academy of Sciences(XDB09000000) ; Strategic Priority Research Program "The Emergence of Cosmological Structures" of the Chinese Academy of Sciences(XDB09000000) ; Key Laboratory of Optical Astronomy, NAOC ; Key Laboratory of Optical Astronomy, NAOC ; Christopher R. Redlich Fund ; Christopher R. Redlich Fund ; TABASGO Foundation ; TABASGO Foundation ; NSF(AST-1211916) ; NSF(AST-1211916) ; 11225316 ; 11225316 ; 11173030) ; 11173030)
DOI10.3847/1538-4357/aa6194
WOS KeywordDIGITAL SKY SURVEY ; H-II REGIONS ; DWARF IRREGULAR GALAXIES ; STAR-FORMATION HISTORIES ; GAS MASS FRACTIONS ; SPIRAL GALAXIES ; DISK GALAXIES ; CHEMICAL EVOLUTION ; OXYGEN ABUNDANCES ; LOCAL UNIVERSE
Indexed BySCI
Language英语
Funding OrganizationNational Astronomical Observatories of China ; National Astronomical Observatories of China ; Chinese Academy of Sciences(XDB09000000) ; Chinese Academy of Sciences(XDB09000000) ; Special Fund for Astronomy from Ministry of Finance ; Special Fund for Astronomy from Ministry of Finance ; National Natural Science Foundation of China(11403037 ; National Natural Science Foundation of China(11403037 ; Strategic Priority Research Program "The Emergence of Cosmological Structures" of the Chinese Academy of Sciences(XDB09000000) ; Strategic Priority Research Program "The Emergence of Cosmological Structures" of the Chinese Academy of Sciences(XDB09000000) ; Key Laboratory of Optical Astronomy, NAOC ; Key Laboratory of Optical Astronomy, NAOC ; Christopher R. Redlich Fund ; Christopher R. Redlich Fund ; TABASGO Foundation ; TABASGO Foundation ; NSF(AST-1211916) ; NSF(AST-1211916) ; 11225316 ; 11225316 ; 11173030) ; 11173030) ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; Chinese Academy of Sciences(XDB09000000) ; Chinese Academy of Sciences(XDB09000000) ; Special Fund for Astronomy from Ministry of Finance ; Special Fund for Astronomy from Ministry of Finance ; National Natural Science Foundation of China(11403037 ; National Natural Science Foundation of China(11403037 ; Strategic Priority Research Program "The Emergence of Cosmological Structures" of the Chinese Academy of Sciences(XDB09000000) ; Strategic Priority Research Program "The Emergence of Cosmological Structures" of the Chinese Academy of Sciences(XDB09000000) ; Key Laboratory of Optical Astronomy, NAOC ; Key Laboratory of Optical Astronomy, NAOC ; Christopher R. Redlich Fund ; Christopher R. Redlich Fund ; TABASGO Foundation ; TABASGO Foundation ; NSF(AST-1211916) ; NSF(AST-1211916) ; 11225316 ; 11225316 ; 11173030) ; 11173030)
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000398745600007
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/8225
Collection星系宇宙学研究部
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, 20A Datun Rd, Beijing 100012, Peoples R China
2.Univ Calif Berkeley, Dept Astron, 601 Campbell Hall, Berkeley, CA 94720 USA
Recommended Citation
GB/T 7714
Du, Wei,Wu, Hong,Zhu, Yinan,et al. Long-slit Spectroscopy of Edge-on Low Surface Brightness Galaxies[J]. ASTROPHYSICAL JOURNAL,2017,837(2).
APA Du, Wei,Wu, Hong,Zhu, Yinan,Zheng, WeiKang,&Filippenko, Alexei V..(2017).Long-slit Spectroscopy of Edge-on Low Surface Brightness Galaxies.ASTROPHYSICAL JOURNAL,837(2).
MLA Du, Wei,et al."Long-slit Spectroscopy of Edge-on Low Surface Brightness Galaxies".ASTROPHYSICAL JOURNAL 837.2(2017).
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