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首页> 外文期刊>The Astrophysical Journal. Supplement Series >The Large Sky Area Multi-object Fiber Spectroscopic Telescope (LAMOST) Quasar Survey: The Fourth and Fifth Data Releases
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The Large Sky Area Multi-object Fiber Spectroscopic Telescope (LAMOST) Quasar Survey: The Fourth and Fifth Data Releases

机译：大型天空区域多物体光纤光谱望远镜（拉莫斯蒂）Quasar调查：第四和第五个数据发布

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摘要

We present Data Releases 4 and 5 of the quasar catalog from the quasar survey by the Large Sky Area Multi-object Fiber Spectroscopic Telescope (LAMOST), which includes quasars observed between 2015 September and 2017 June. There are a total of 19,253 quasars identified by visual inspections of the spectra. Among them, 11,458 were independently discovered by LAMOST, in which 3296 were reported by the SDSS DR12 and DR14 quasar catalog after our survey began, while the remaining 8162 are new discoveries of LAMOST. We provide the emission line measurements for H alpha, H beta), Mg II, and/or C IV for 18,100 quasars. Since LAMOST does not have absolute flux calibration information, we obtain the monochromatic continuum luminosities by fitting the SDSS photometric data using the quasar spectra, and then estimate the black hole masses. The catalog and spectra for these quasars are available online. This is the third installment in the series of LAMOST quasar surveys that has released spectra for similar to 43,000 quasars to date. There are 24,772 independently discovered quasars, 17,128 of which are newly discovered. In addition to this great supplement to the new quasar discoveries, LAMOST has also provided a large database (overlapped with SDSS) for investigating quasar spectral variability and discovering unusual quasars, including changing-look quasars, with ongoing and upcoming large surveys.
机译：我们通过大型天空区域多物体光纤光谱望远镜（拉莫斯蒂）的标准调查提供了数据版本4和5，其中包括2015年9月和2017年6月之间观察到的Quasars。通过光谱的目视检查共鉴定了19,253个Quasars。其中，11,458由拉米骨压体独立发现，其中SDSS DR12和DR14 Quasar目录开始3296，而剩余的8162是LAMOST的新发现。我们为Hα，Hβ），Mg II和/或C IV提供的排放线测量为18,100个Quasars。由于拉莫斯蒂没有绝对磁通校准信息，因此我们通过使用正谱拟合SDSS光度数据来获得单色连续亮度，然后估计黑洞块。这些类星体的目录和光谱可在线获取。这是一系列Lamost准调查中的第三部分，该系列迄今为止已释放出类似的光谱。有24,772个独立发现的Quasars，其中17,128个是新发现的。除了新的Quasar发现的巨大补充外，Lamost还提供了一个大型数据库（重叠的SDSS），用于调查准频谱变异性，并发现不寻常的Quasars，包括更改外观的标准条件，正在进行和即将到来的大型调查。

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    Yao Su; Wu Xue-Bing; Ai Y. L.; Yang Jinyi; Yang Qian; Dong Xiaoyi; Joshi Ravi; Wang Feige; Feng Xiaotong; Fu Yuming; Hou Wen; Luo A-L; Kong Xiao; Liu Yuanqi; Zhao Y-H; Zhang Y-X; Yuan H-L; Shen Shiyin;

  • 作者单位

    Peking Univ Kavli Inst Astron &

    Astrophys Beijing 100871 Peoples R China;

    Peking Univ Kavli Inst Astron &

    Astrophys Beijing 100871 Peoples R China;

    Sun Yat Sen Univ Sch Phys &

    Astron Guangzhou 510275 Guangdong Peoples R China;

    Peking Univ Kavli Inst Astron &

    Astrophys Beijing 100871 Peoples R China;

    Peking Univ Kavli Inst Astron &

    Astrophys Beijing 100871 Peoples R China;

    Peking Univ Sch Phys Dept Astron Beijing 100871 Peoples R China;

    Peking Univ Kavli Inst Astron &

    Astrophys Beijing 100871 Peoples R China;

    Peking Univ Kavli Inst Astron &

    Astrophys Beijing 100871 Peoples R China;

    Peking Univ Kavli Inst Astron &

    Astrophys Beijing 100871 Peoples R China;

    Peking Univ Kavli Inst Astron &

    Astrophys Beijing 100871 Peoples R China;

    Chinese Acad Sci Natl Astron Observ Beijing 100012 Peoples R China;

    Chinese Acad Sci Natl Astron Observ Beijing 100012 Peoples R China;

    Chinese Acad Sci Natl Astron Observ Beijing 100012 Peoples R China;

    Peking Univ Sch Phys Dept Astron Beijing 100871 Peoples R China;

    Chinese Acad Sci Natl Astron Observ Beijing 100012 Peoples R China;

    Chinese Acad Sci Natl Astron Observ Beijing 100012 Peoples R China;

    Chinese Acad Sci Natl Astron Observ Beijing 100012 Peoples R China;

    Chinese Acad Sci Shanghai Astron Observ Key Lab Res Galaxies &

    Cosmol Shanghai 200030 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 天体物理学;天文学;
  • 关键词

    catalogs; quasars: general; surveys;

    机译：目录;Quasars：一般;调查;

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