NAOC Open IR
Edge-on H i-bearing Ultra-diffuse Galaxy Candidates in the 40% ALFALFA Catalog
He,Min1,2; Wu,Hong1,2; Du,Wei1; Wicker,James3; Zhao,Pingsong1,2; Lei,Fengjie1,2; Liu,Jifeng1,2
2019-07-22
Source PublicationThe Astrophysical Journal
ISSN0004-637X
Volume880Issue:1
AbstractAbstract Ultra-diffuse galaxies are objects that have very extended morphology and faint central surface brightness. Most UDGs are discovered in galaxy clusters and groups, but some are also found in low-density environments. The diffuse morphology and faint surface brightness make them difficult to distinguish from the sky background. Several previous works have suggested that at least some UDGs are consistent with exponential surface brightness profiles). The surface brightness of exponential disks is enhanced in edge-on systems, so searching for edge-on systems may be an efficient way to select UDGs. In this paper, we focus on searching for edge-on H i-bearing ultra-diffuse sources (HUDS) from the 40% Arecibo Legacy Fast ALFA (ALFALFA) catalog, based on Sloan Digital Sky Survey g- and r-band images. After correcting the observed central surface brightness to a face-on perspective, we discover 11 edge-on HUDS candidates. All these newly discovered HUDS candidates are blue and H i-bearing, similar to other HUDS in 70% ALFALFA catalog, and different from UDGs in clusters.
Keywordgalaxies: evolution galaxies: formation radio lines: galaxies
DOI10.3847/1538-4357/ab2710
Language英语
WOS IDIOP:0004-637X-880-1-ab2710
PublisherThe American Astronomical Society
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/28781
Collection中国科学院国家天文台
Affiliation1.Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100101, People’s Republic of China; hemin13@live.com, hwu@bao.ac.cn, wdu@bao.ac.cn
2.School of Astronomy and Space Science, University of Chinese Academy of Sciences, 19A Yuquan Road, Shijingshan District, Beijing, 100049, People’s Republic of China
3.Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100101, People’s Republic of China
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
He,Min,Wu,Hong,Du,Wei,et al. Edge-on H i-bearing Ultra-diffuse Galaxy Candidates in the 40% ALFALFA Catalog[J]. The Astrophysical Journal,2019,880(1).
APA He,Min.,Wu,Hong.,Du,Wei.,Wicker,James.,Zhao,Pingsong.,...&Liu,Jifeng.(2019).Edge-on H i-bearing Ultra-diffuse Galaxy Candidates in the 40% ALFALFA Catalog.The Astrophysical Journal,880(1).
MLA He,Min,et al."Edge-on H i-bearing Ultra-diffuse Galaxy Candidates in the 40% ALFALFA Catalog".The Astrophysical Journal 880.1(2019).
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
[He,Min]'s Articles
[Wu,Hong]'s Articles
[Du,Wei]'s Articles
Baidu academic
Similar articles in Baidu academic
[He,Min]'s Articles
[Wu,Hong]'s Articles
[Du,Wei]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[He,Min]'s Articles
[Wu,Hong]'s Articles
[Du,Wei]'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.