An Hα Imaging Survey of the Low Surface Brightness Galaxies Selected from the Spring Sky Region of the 40% ALFALFA H i Survey
文献类型：期刊论文
| 作者 | Lei,Feng-Jie2,3,4; Wu,Hong2,3,4 ; Zhu,Yi-Nan1; Du,Wei3,4; He,Min2,3,4; Jin,Jun-Jie2,3,4; Zhao,Pin-Song2,3,4; Zhang,Bing-Qing2,3,4
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| 刊名 | The Astrophysical Journal Supplement Series
 |
| 出版日期 | 2019-05-21 |
| 卷号 | 242期号:1 |
| 关键词 | catalogs galaxies: star formation techniques: image processing |
| ISSN号 | 0067-0049 |
| DOI | 10.3847/1538-4365/ab16ee |
| 英文摘要 | Abstract We present a narrow Hα-band imaging survey of 357 low surface brightness galaxies (LSBGs) that are selected from the spring sky region of the 40% Arecibo Legacy Fast Arecibo L-band Feed Array (ALFALFA) H i Survey. All the Hα images are obtained from the 2.16 m telescope, operated by the Xinglong Observatory of the National Astronomical Observatories, Chinese Academy of Sciences. We provide the Hα fluxes and derive the global star formation rates (SFRs) of LSBGs after the Galactic extinction, internal extinction, and [N ii] contamination correction. Compared to normal star-forming galaxies, LSBGs have a similar distribution in the H i surface density (ΣH i), but their SFRs and star formation surface density (ΣSFR) are much lower. Our results show that the gas-rich LSBGs selected from the ALFALFA survey obviously deviate from the Kennicutt–Schmidt law, in the relation between the star formation surface density (ΣSFR) and the gas surface density (Σgas). However, they follow the extended Schmidt law well when taking the stellar mass of the galaxy into consideration. |
| 语种 | 英语 |
| WOS记录号 | IOP:0067-0049-242-1-AB16EE |
| 出版者 | The American Astronomical Society |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/28897]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.Schools of Physics and Astronomy, Sun Yat-sen University, Zhuhai 519082, People's Republic of China 2.School of Astronomy and Space Science University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China 3.National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100101, People's Republic of China 4.Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, People's Republic of China hwu@bao.ac.cn |
| 推荐引用方式 GB/T 7714 | Lei,Feng-Jie,Wu,Hong,Zhu,Yi-Nan,et al. An Hα Imaging Survey of the Low Surface Brightness Galaxies Selected from the Spring Sky Region of the 40% ALFALFA H i Survey[J]. The Astrophysical Journal Supplement Series,2019,242(1). |
| APA | Lei,Feng-Jie.,Wu,Hong.,Zhu,Yi-Nan.,Du,Wei.,He,Min.,...&Zhang,Bing-Qing.(2019).An Hα Imaging Survey of the Low Surface Brightness Galaxies Selected from the Spring Sky Region of the 40% ALFALFA H i Survey.The Astrophysical Journal Supplement Series,242(1). |
| MLA | Lei,Feng-Jie,et al."An Hα Imaging Survey of the Low Surface Brightness Galaxies Selected from the Spring Sky Region of the 40% ALFALFA H i Survey".The Astrophysical Journal Supplement Series 242.1(2019). |
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