位置：立项数据库 > 立项详情页
星系和类星体
  • 项目名称：星系和类星体
  • 项目类别：海外或港、澳青年学者合作研究基金
  • 批准号：10728307
  • 申请代码：A0302
  • 项目来源：国家自然科学基金
  • 研究期限：2008-01-01-2010-12-31
  • 项目负责人：樊晓晖
  • 负责人职称：副教授
  • 依托单位：中国科学院紫金山天文台
  • 批准年度：2007
中文摘要：

高红移亮类星体对超大质量黑洞和早期宇宙的星系际介质提供了直接的探测。我们已经从斯隆数字巡天（SDSS）的数据选择，建立了一个红移5.5 < z < 6.5间的50个亮类星体的样本。对这些类星体的研究出现了两个结果1.这些天体的探测展示了宇宙中第一颗恒星形成后紧紧几百兆年后，就存在了百万个太阳质量的黑洞。它们被富金属的气体和倾向于恒星形成的年轻的星系所包围，强烈地约束了超大质量黑洞的早期增长和与它们的宿主星系的共同演化。2.最高红移类星体的吸收谱线揭示了完整的 Gunn-Peterson吸收，指示出星系际介质中中性部分的快速增加，标志出了在红移 z~6的二次电离时代的结束。与微波背景偏振测量的结果，目前的数据认为在7

中文主题词： 类星体；二次电离；星系形成；活动星系核；大望远镜
结论摘要：

英文主题词Quasars - reionization - galaxy formation - AGN - Large Telescopes

成果综合统计
成果类型
数量
  • 期刊论文
  • 会议论文
  • 专利
  • 获奖
  • 著作
  • 44
  • 0
  • 0
  • 0
  • 0
期刊论文
The 0.8-14.5 μm Spectra of Mid-L to Mid-T Dwarfs: Diagnostics of Effective Temperature, Grain Sedime
LBT/LUCIFER Observations of the z ~ 2 Lensed Galaxy J0900+2234
Multiwavelength Observations of Radio-quiet Quasars with Weak Emission Lines
Herschel-PACS far-infrared photometry of two z > 4 quasars
Constraints on Black Hole Growth, Quasar Lifetimes, and Eddington Ratio Distributions from the SDSS
Binary Quasars at High Redshift. II. Sub-Mpc Clustering at z ~ 3-4
Ionization Near Zones Associated with Quasars at z ~ 6
Molecular Gas in z ~ 6 Quasar Host Galaxies
Dust-free quasars in the early Universe
The extinction law at high redshift and its implications
Weak Line Quasars at High Redshift: Extremely High Accretion Rates or Anemic Broad-line Regions?
Binary Quasars at High Redshift. I. 24 New Quasar Pairs at z ~ 3-4
The Prevalence of Narrow Optical Fe II Emission Lines in Type 1 Active Galactic Nuclei
SDSS J094604.90+183541.8: A Gravitationally Lensed Quasar at z = 4.8
Light Curve Templates and Galactic Distribution of RR Lyrae Stars from Sloan Digital Sky Survey Stri
Optically Selected BL Lacertae Candidates from the Sloan Digital Sky Survey Data Release Seven
An Observational Determination of the Proton to Electron Mass Ratio in the Early Universe
High-redshift SDSS Quasars with Weak Emission Lines.
The Seventh Data Release of the Sloan Digital Sky Survey
A Survey of z ~ 6 Quasars in the Sloan Digital Sky Survey Deep Stripe. II. Discovery of Six Quasars
A Catalog of Broad Absorption Line Quasars in Sloan Digital Sky Survey Data Release 5
Quasar Clustering from SDSS DR5: Dependences on Physical Properties
SPACE: the spectroscopic all-sky cosmic explorer
Near-Infrared Spectroscopy of SDSS J0303 - 0019: A Low-luminosity, High-Eddington-Ratio Quasar at z
X-Ray Insights into the Nature of Weak Emission-Line Quasars at High Redshift.
SHARC-II 350 μm Observations of Thermal Emission from Warm Dust in z >= 5 Quasars
Thermal Emission from Warm Dust in the Most Distant Quasars
Observations of the Gas Reservoir around a Star-Forming Galaxy in the Early Universe
Mass Functions of the Active Black Holes in Distant Quasars from the Sloan Digital Sky Survey Data R
A molecular probe of dark energy
A Survey of z ~ 6 Quasars in the Sloan Digital Sky Survey Deep Stripe. I. A Flux-Limited Sample at z
The Sixth Data Release of the Sloan Digital Sky Survey
Modeling the Dust Properties of z ~ 6 Quasars with ART 2 -All-Wavelength Radiative Transfer with Ada
Luminosity Function Constraints on the Evolution of Massive Red Galaxies since z ~ 0.9
A Flexible Method of Estimating Luminosity Functions
A Sample of Quasars with Strong Nitrogen Emission Lines from the Sloan Digital Sky Survey
Determining Quasar Black Hole Mass Functions from their Broad Emission Lines: Application to the Bri
The Sloan Digital Sky Survey Quasar Catalog. V. Seventh Data Release.
Four faint T dwarfs from the UKIRT Infrared Deep Sky Survey (UKIDSS) Southern Stripe
Go Long, Go Deep: Finding Optical Jet Breaks for Swift-Era GRBs with the LBT
Improved Cosmological Constraints from New, Old, and Combined Supernova Data Sets.
Glimpsing through the high-redshift neutral hydrogen fog
相关项目
活动星系核喷流运动与变化研究
期刊论文 1
结合SDSS及LAMOST观测资料研究相互作用“星系对”的性质
期刊论文 2
射电星系辐射性质
期刊论文 14 会议论文 4
遮掩活动星系核
期刊论文 23 会议论文 1
射电到X射线全波段类星体总光度和观测研究
期刊论文 1 会议论文 2
星系和类星体
期刊论文 20 会议论文 8
子暗晕周围气体演化的数值模拟研究
期刊论文 2
基于SPITZER红外卫星资料研究星系的红外发射
期刊论文 11 会议论文 4
基于星族合成方法的红外亮活动星系核演化研究
期刊论文 6
樊晓晖的项目