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WFPC2 Observations of the Hubble Deep Field-South

机译:WFpC2对哈勃深海南方的观测

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摘要

The Hubble Deep Field-South observations targeted a high-galactic-latitudefield near QSO J2233-606. We present WFPC2 observations of the field in fourwide bandpasses centered at roughly 300, 450, 606, and 814 nm. Observations,data reduction procedures, and noise properties of the final images arediscussed in detail. A catalog of sources is presented, and the number countsand color distributions of the galaxies are compared to a new catalog of theHDF-N that has been constructed in an identical manner. The two fields arequalitatively similar, with the galaxy number counts for the two fieldsagreeing to within 20%. The HDF-S has more candidate Lyman-break galaxies at z> 2 than the HDF-N. The star-formation rate per unit volume computed from theHDF-S, based on the UV luminosity of high-redshift candidates, is a factor of1.9 higher than from the HDF-N at z ~ 2.7, and a factor of 1.3 higher at z ~ 4.
机译:哈勃南深场观测的目标是QSO J2233-606附近的高银纬度场。我们在以大约300、450、606和814 nm为中心的四宽带通中呈现该场的WFPC2观测值。详细讨论了最终图像的观测,数据缩减程序和噪声特性。列出了源目录,并将星系的数量计数和颜色分布与以相同方式构造的HDF-N新目录进行比较。这两个场在质上相似,两个场的星系数一致在20%以内。与HDF-N相比,HDF-S在z> 2时具有更多的候选莱曼破裂星系。根据高红移候选者的UV光度,从HDF-S计算得出的每单位体积的恒星形成率,比z〜2.7的HDF-N高1.9倍,在高的红移候选者的紫外线下,高1.3倍。 z〜4。

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