Nowhere Left to Hide: Closing in on Dusty Galaxies at High Redshift

AST-0708653BakerDr.罗格斯大学的安德鲁·贝克将利用他的特权使用Z光谱仪，这是西弗吉尼亚州绿色银行100米射电望远镜的一种创新性新仪器，以及已经批准用于同类中最敏感的三个毫米波射电望远镜的300多个小时的观测。 他将在新墨西哥州的甚大阵列所绘制的最深区域内，以高角分辨率绘制一个大的天空区域，并将尘埃高红移星系与它们最近的本地类似物进行详细的比较。 这一全面观测计划的目标是识别、定位和表征长波长的尘埃遥远星系的广泛样本，这些星系的辐射热光度的最大部分出现在长波长处。 这种直接的方法在将广泛但模糊的光学数据的解释锚定到更大，更有代表性的一组充分理解的目标方面是有价值的。 早期宇宙中明亮的尘埃星系仍然难以详细研究。 新的数据将有助于了解这些隐藏的星系在宇宙历史中的作用，星星的形成，吸积，和mass assembly.The项目包括贝克博士的支持社区科学观测与Zpectrometer仪器由其他团体在前一年过渡到设施仪器状态，从而扩大培训，使更广泛的各种早期宇宙科学。这项工作将提高绿色银行望远镜，（扩大）甚大阵列，大学射电天文台和（未来）阿塔卡马大型毫米阵列观测计划的重点和效率。该计划涉及罗格斯大学研究生的培训，可能是一个代表性不足的群体。

AST-0708653BakerDr. Andrew Baker of Rutgers University will exploit his privileged access to the Zpectrometer, an innovative new instrument at the 100-m radio telescope in Green Bank, West Virginia, and over 300 hours of observations already approved for three of the most sensitive millimeter-wave radio telescopes in their classes. He will carry out a program to map a large sky region at high angular resolution, within the deepest field ever mapped by the Very Large Array in New Mexico, and make a detailed comparison of dusty high-redshift galaxies with their closest local analogs. The goals of this comprehensive observational program are to identify, localize, and characterize broad samples of dusty, distant galaxies at the long wavelengths where the greatest fractions of their bolometric luminosities emerge. Such a direct approach is valuable in anchoring the interpretation of extensive but ambiguous optical data to a larger, more representative set of well-understood targets. Luminous, dusty galaxies in the early Universe have remained stubbornly difficult to study in detail. The new data will help to understand the role of these hidden galaxies in the cosmic histories of star formation, accretion, and mass assembly.The project includes Dr Baker's support of community science observations with the Zpectrometer instrument by other groups in the year preceding its transition to facility instrument status, thereby broadening training and enabling an even wider variety of early Universe science. The work will improve the focus and efficiency of observing programs at the Green Bank Telescope, the (Expanded) Very Large Array, the University Radio Observatories, and the (future) Atacama Large Millimeter Array. The program involves the training of a Rutgers graduate student, probably one from an under-represented group.