当前位置: X-MOL 学术Astrophys. J. Suppl. Ser. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Placing High-redshift Quasars in Perspective: A Catalog of Spectroscopic Properties from the Gemini Near Infrared Spectrograph–Distant Quasar Survey
The Astrophysical Journal Supplement Series ( IF 8.7 ) Pub Date : 2021-01-19 , DOI: 10.3847/1538-4365/abc705
Brandon M. Matthews 1 , Ohad Shemmer 1 , Cooper Dix 1 , Michael S. Brotherton 2 , Adam D. Myers 2 , I. Andruchow 3, 4 , W. N. Brandt 5, 6, 7 , Gabriel A. Ferrero 3, 4 , S. C. Gallagher 8 , Richard Green 9 , Paulina Lira 10 , Richard M. Plotkin 11 , Gordon T. Richards 12 , Jessie C. Runnoe 13 , Donald P. Schneider 5, 6 , Yue Shen 14, 15 , Michael A. Strauss 16 , Beverley J. Wills 17
Affiliation  

We present spectroscopic measurements for 226 sources from the Gemini Near Infrared Spectrograph–Distant Quasar Survey (GNIRS-DQS). Being the largest uniform, homogeneous survey of its kind, it represents a flux-limited sample (m i ≲19.0 mag, H≲16.5 mag) of Sloan Digital Sky Survey (SDSS) quasars at 1.5 ≲ z ≲ 3.5 with a monochromatic luminosity ($\lambda {L}_{\lambda }$) at 5100 Å in the range of 1044–1046 erg s−1. A combination of the GNIRS and SDSS spectra covers principal quasar diagnostic features, chiefly the Civλ1549, Mgiiλλ2798, 2803, Hβλ4861, and [O iii] λλ4959, 5007 emission lines, in each source. The spectral inventory will be utilized primarily to develop prescriptions for obtaining more accurate and precise redshifts, black hole masses, and accretion rates for all quasars. Additionally, the measurements will facilitate an understanding of the dependence of rest-frame ultraviolet–optical spectral properties of quasars on redshift, luminosity, and Eddington ratio, and test whether the physical properties of the quasar central engine evolve over cosmic time.



中文翻译:

在透视图中放置高红移类星体:双子座近红外光谱仪-远距离类星体光谱学的光谱性质目录

我们提供了来自双子座近红外光谱仪-遥远类星体调查(GNIRS-DQS)的226个源的光谱测量结果。是最大的均匀,其种同质调查时,它表示磁通限制样品( ≲19.0MAG,ħ ≲16.5MAG)斯隆数字巡天(SDSS)中的1.5≲类星体Ž ≲3.5单色亮度()在5100Å时,在10 44 –10 46 erg s -1的范围内。的GNIRS和SDSS光谱盖主要类星体诊断功能,主要是作为C的组合IV λ 1549,镁λλ 2798,2803,H β λ 4861,和〔O $ \ lambda {L} _ {\ lambda} $III ] λλ 4959,5007条的发射线,在每个源。频谱清单将主要用于制定处方,以获取所有类星体更准确的红移,黑洞质量和吸积率。此外,这些测量将有助于理解类星体的静止帧紫外线-光谱特性对红移,光度和爱丁顿比的依赖性,并测试类星体中央引擎的物理特性是否随宇宙时间演化。

更新日期:2021-01-19
down
wechat
bug