标题： 最遥远的星系 显示英文标题

标题： The Most Distant Galaxies

摘要： 我回顾了有关遥远星系的一些选定的当前观测以及我们对脆弱（有时矛盾）数据的解释。 位于技术与红移（z ~ 6）“当代极限”处的星系本来就很难定位。 此外，大红移可能会将某些关键的确证和/或解释性分析推向不熟悉的红外波长。 我将集中讨论观测手段和结果以探索星系的早期演化。 我们还注意到了影响遥远星系测光和光谱解释方面的偏差。 我们讨论了选择那些非常遥远系统的最佳方法；这些方法包括利用尘埃强烈的亚毫米发射、指示紫外“光谱断层”的测光以及最后强烈的Lyman alpha发射线信号。 这一特征已经使我们达到了超过z = 6.57的星系红移！ 显示英文摘要

摘要： I review selected current observations of distant galaxies and our interpretation of the fragile (and occasionally contradictory) data. Galaxies at the ``contemporary limit'' of technology and redshift (z~6) are difficult to locate in the first place. Moreover, the large redshift may push some critical confirming and/or interpretative analysis toward unfamiliar IR wavelengths. I will concentrate on observational means and results to explore the early evolution of galaxies. We also note the biases that intrude on plans for the interpretative aspects of distant galaxy photometry and spectroscopy. We discuss the best methods of selection for those very distant systems; these methods include utilizing strong sub-mm emission from dust, photometry indicating a UV "spectral break," and finally the signal of a strong Lyman alpha emission line. This feature has now carried us to a galaxy redshift in excess of z = 6.57!