eightnewquasarsdiscoveredbytheguoshoujingtelescopelamostinoneextragalacticfield
文献类型：期刊论文
| 作者 | Wu Xuebing5; Jia Zhendong5; Chen Zhaoyu5; Zuo Wenwen5; Zhao Yongheng4 ; Luo Ali4; Bai Zhongrui4; Chen Jianjun4; Zhang Haotong4; Yan Hongliang4
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| 刊名 | researchinastronomyandastrophysics
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| 出版日期 | 2010 |
| 卷号 | 000期号:008页码:745 |
| ISSN号 | 1674-4527 |
| 英文摘要 | We report the discovery of eight new quasars in one extragalactic field （a five-degree field centered at RA=08^h58^m08.2^s, Dec=01°32′29.7″） with the Guoshoujing Telescope （LAMOST） commissioning observations made on 2009 December 18. These quasars, with i magnitudes from 16.44 to 19.34 and redshifts from 0.898 to 2.773, were not identified in the SDSS spectroscopic survey, though six of them with redshifts less than 2.5 were selected as quasar targets in SDSS. Except for one source without near-IR Y-band data, seven of these eight new quasars satisfy a newly proposed quasar selection criterion involving both near-IR and optical colors. Two of them were found in the ＇redshift desert＇ for quasars （z from 2.2 to 3）, indicating that the new criterion is efficient for uncovering missing quasars with similar optical colors to stars. Although LAMOST encountered some problems during the commissioning observations, we were still able to identify 38 other known SDSS quasars in this field, with i magnitudes from 16.24 to 19.10 and redshifts from 0.297 to 4.512. Our identifications imply that a substantial fraction of quasars may be miss- ing in previous quasar surveys. The implication of our results to the future LAMOST quasar survey is discussed. |
| 语种 | 英语 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/42100]  |
| 专题 | 光学部_LAMOST运行和发展中心 |
| 作者单位 | 1.中国科学院上海天文台 2.Center for Astrophysics, University of Science & Technology of China 3.中国科学院 4.中国科学院国家天文台 5.北京大学 |
| 推荐引用方式 GB/T 7714 | Wu Xuebing,Jia Zhendong,Chen Zhaoyu,et al. eightnewquasarsdiscoveredbytheguoshoujingtelescopelamostinoneextragalacticfield[J]. researchinastronomyandastrophysics,2010,000(008):745. |
| APA | Wu Xuebing.,Jia Zhendong.,Chen Zhaoyu.,Zuo Wenwen.,Zhao Yongheng.,...&Shen Shiyin.(2010).eightnewquasarsdiscoveredbytheguoshoujingtelescopelamostinoneextragalacticfield.researchinastronomyandastrophysics,000(008),745. |
| MLA | Wu Xuebing,et al."eightnewquasarsdiscoveredbytheguoshoujingtelescopelamostinoneextragalacticfield".researchinastronomyandastrophysics 000.008(2010):745. |
入库方式： OAI收割
来源：国家天文台
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