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An H alpha Imaging Survey of the Low-surface-brightness Galaxies Selected from the Fall Sky Region of the 40% ALFALFA HI Survey

文献类型：期刊论文

作者Lei, Feng-Jie1,2,3; Wu, Hong1,2,3; Du, Wei1,3; Zhu, Yi-Nan1,3; Lam, Man-I4; Zhou, Zhi-Min1,3; He, Min1,2,3; Jin, Jun-Jie1,2,3; Cao, Tian-Wen1,2,3; Zhao, Pin-Song1,2,3
刊名ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
出版日期2018-03-01
卷号235期号:1页码:17
关键词galaxies: evolution galaxies: star formation
ISSN号0067-0049
DOI10.3847/1538-4365/aaa7ec
英文摘要We present the observed H alpha flux and derived star formation rates (SFRs) for a fall sample of low-surface-brightness galaxies (LSBGs). The sample is selected from the fall sky region of the 40% ALFALFA HI Survey-SDSS DR7 photometric data, and all the H alpha images were obtained using the 2.16 m telescope, operated by the National Astronomy Observatories, Chinese Academy of Sciences. A total of 111 LSBGs were observed and H alpha flux was measured in 92 of them. Though almost all the LSBGs in our sample are HI-rich, their SFRs, derived from the extinction and filter-transmission-corrected H alpha flux, are less than 1M(circle dot) yr(-1). LSBGs and star-forming galaxies have similar HI surface densities, but LSBGs have much lower SFRs and SFR surface densities than starforming galaxies. Our results show that LSBGs deviate from the Kennicutt-Schmidt law significantly, which indicates that they have low star formation efficiency. The SFRs of LSBGs are close to average SFRs in Hubble time and support previous arguments that most of the LSBGs are stable systems and they tend to seldom contain strong interactions or major mergers in their star formation histories.
资助项目National Key R&D Program of China[2017YFA0402704] ; National Natural Science Foundation of China[11733006] ; National Natural Science Foundation of China[11403037] ; National Natural Science Foundation of China[11225316] ; National Natural Science Foundation of China[11173030] ; National Natural Science Foundation of China[11303038] ; National Natural Science Foundation of China[11403061] ; National Natural Science Foundation of China[U1531245] ; China Ministry of Science and Technology under the State Key Development Program for Basic Research[2014CB845705] ; Strategic Priority Research Program, The Emergence of Cosmological Structures of the Chinese Academy of Sciences[XDB09000000] ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; NSF[AST-0607007] ; NSF[AST-1107390] ; Brinson Foundation ; Alfred P. Sloan Foundation ; U.S. Department of Energy ; National Aeronautics and Space Administration ; Japanese Monbukagakusho ; Max Planck Society ; Higher Education Fund Council for England ; National Science Foundation
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000456572400001
出版者IOP PUBLISHING LTD
源URL[http://119.78.226.72/handle/331011/31997]  
专题中国科学院上海天文台
通讯作者Lei, Feng-Jie
作者单位1.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China
2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Key Lab Opt Astron, Natl Astron Observ, Beijing 100012, Peoples R China
4.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
推荐引用方式
GB/T 7714		 Lei, Feng-Jie,Wu, Hong,Du, Wei,et al. An H alpha Imaging Survey of the Low-surface-brightness Galaxies Selected from the Fall Sky Region of the 40% ALFALFA HI Survey[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2018,235(1):17.
APA Lei, Feng-Jie.,Wu, Hong.,Du, Wei.,Zhu, Yi-Nan.,Lam, Man-I.,...&Ren, Juan-Juan.(2018).An H alpha Imaging Survey of the Low-surface-brightness Galaxies Selected from the Fall Sky Region of the 40% ALFALFA HI Survey.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,235(1),17.
MLA Lei, Feng-Jie,et al."An H alpha Imaging Survey of the Low-surface-brightness Galaxies Selected from the Fall Sky Region of the 40% ALFALFA HI Survey".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 235.1(2018):17.

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