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The Vimos-VLT Deep Survey: Results from the First-Epoch Observations

机译:Vimos-VLT深度调查:第一个时代观测结果结果

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The Vimos-VLT Deep Survey is a spectroscopic survey aiming at collecting more than 50 000 spectra down to a limiting magnitude /AB = 24, and 100 000 down to JAB = 22.5, on a total of about 16 deg2 without any color or morphology preselection We present the N(z) distribution up to z ~ 5, obtained from a purely magnitude-limited sample down to /AB = 24, which is an important input to weak-lensing studies. We discuss the evolution of the galaxy luminosity function up to 2 ~ 2, which exhibits a very strong increase in the typical galaxy luminosity AM* ~ -2 5 in the U band compared to the local value. Surveys like the VVDS also allow to study the galaxy bias as a function of redshift without assumption about its linearity, an assumption that we find to be violated in some cases, A low bias is found, and the lineal bias is shown to increase with redshift
机译:ViMOS-VLT深度调查是一种光谱测量,其旨在将大于50 000光谱收集到限制幅度/ ab = 24,并且在100 000到jab = 22.5的情况下,总共约16个DEG2,没有任何颜色或形态预先选择我们将N(Z)分布呈现为Z〜5的Z〜5,从纯度限制的样品下降到/ ab = 24,这是对弱镜头研究的重要输入。我们讨论了Galaxy亮度函数高达2〜2的演变,与局部值相比,U频带中典型的星系亮度AM *〜-2 5的典型星系亮度呈非常强烈增加。像VVDS这样的调查也允许在没有假设其线性的情况下作为红移的函数研究Galaxy偏见,发现我们发现在某些情况下被侵犯的假设,发现了低偏差,并且线路偏置显示随着红移增加

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