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arXiv 1803.03063astro-ph.GA
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大天区多目标光纤光谱望远镜(LAMOST)类星体巡天:来自数据发布2和3的类星体特性

The Large Sky Area Multi-Object Fibre Spectroscopic Telescope (LAMOST) Quasar Survey: Quasar Properties from Data Release Two and Three

X. Y. Dong, Xue-Bing Wu, Y. L. Ai, J. Y. Yang, Q. Yang, F. Wang, Y. X. Zhang, A. L. Lou, H. Xu, H. L. Yuan, J. N. Zhang, M. X. Wang, L. L. Wang, Y. B. Li, F. Zu… 展开作者

X. Y. Dong, Xue-Bing Wu, Y. L. Ai, J. Y. Yang, Q. Yang, F. Wang, Y. X. Zhang, A. L. Lou, H. Xu, H. L. Yuan, J. N. Zhang, M. X. Wang, L. L. Wang, Y. B. Li, F. Zuo, W. Hou, Y. X. Guo, X. Kong, X. Y. Chen, Y. Wu, H. F. Yang, M. Yang

摘要:

这是大天区多目标光纤光谱望远镜(LAMOST)类星体调查的第二部分,其中包括2013年9月至2015年6月观察到的类星体。DR 2中有9024个类星体,DR 3中有10911个。经与SDSS星表和NED交叉比对,共发现12126个独立的类星体。其中2225个类星体是在2014年SDSS DR 12类星体目录中公布的。SDSS DR 14共识别出1801个类星体。其余8100个类星体被认为是新发现的,其中6887个类星体可以给出可靠的发射线测量和估计的黑洞质量。LAMOST发现的类星体大多位于低到中等的红移,平均值为1.5。在DR 2和DR 3中观察到的最高红移为5。我们对H $α$、H $β$、Mg{ \sc ii}和C{ \sc iv}进行了发射谱线测量。利用测光数据推导了类星体的单色连续光谱光度,并对新发现的类星体的维里黑洞质量进行了估算。结果被汇编成一个类星体目录,将在网上提供。

英文摘要:

This is the second installment for the Large Sky Area Multi-Object Fibre Spectroscopic Telescope (LAMOST) Quasar Survey, which includes quasars observed from September 2013 to June 2015. There are 9024 confirmed quasars in DR2 and 10911 in DR3. After cross-match with the SDSS quasar catalogs and NED, 12126 quasars are discovered independently. Among them 2225 quasars were released by SDSS DR12 QSO catalogue in 2014 after we finalised the survey candidates. 1801 sources were identified by SDSS DR14 as QSOs. The remaining 8100 quasars are considered as newly founded, and among them 6887 quasars can be given reliable emission line measurements and the estimated black hole masses. Quasars found in LAMOST are mostly located at low-to-moderate redshifts, with a mean value of 1.5. The highest redshift observed in DR2 and DR3 is 5. We applied emission line measurements to H$α$, H$β$, Mg{\sc ii} and C{\sc iv}. We deduced the monochromatic continuum luminosities using photometry data, and estimated the virial black hole masses for the newly discovered quasars. Results are compiled into a quasar catalog, which will be available online.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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