广域巡天与天文发现空间
Wide Field Surveys and Astronomical Discovery Space
摘要:
我通过广泛的实地调查来回顾科学的现状。几十年来,巡天一直是天文学的支柱,也是发现的主要引擎,因为我们已经在每一个可能的波长上绘制了天空。调查是对资源的有效利用。它们是重要的基本资源;映射固有的大结构;获得必要的统计数据来解决一些问题;并找到非常罕见的对象。我总结了最近的主要宽场调查-2 MASS,SDSS,2dfGRS和UKIDSS -并看看他们所产生的令人兴奋的科学的例子,包括银河系的结构,宇宙学参数的测量,创建一个新的领域研究亚恒星物体,和宇宙的电离历史。然后,我简要介绍了光学红外测量领域即将到来的项目- VISTA,PanSTARRS,WISE和LSST。最后我问,现在我们基本上已经打开了所有的波长窗口,勘测发现空间的探索是否已经结束。我研究了发现空间的其他可能的轴,发现它们大多太昂贵而无法探索,或者没有成果,只有两个例外:第一个是时间轴,我们刚刚开始正确探索;第二个是中微子天体物理学的可能性。
英文摘要:
I review the status of science with wide field surveys. For many decades surveys have been the backbone of astronomy, and the main engine of discovery, as we have mapped the sky at every possible wavelength. Surveys are an efficient use of resources. They are important as a fundamental resource; to map intrinsically large structures; to gain the necessary statistics to address some problems; and to find very rare objects. I summarise major recent wide field surveys - 2MASS, SDSS, 2dfGRS, and UKIDSS - and look at examples of the exciting science they have produced, covering the structure of the Milky Way, the measurement of cosmological parameters, the creation of a new field studying substellar objects, and the ionisation history of the Universe. I then look briefly at upcoming projects in the optical-IR survey arena - VISTA, PanSTARRS, WISE, and LSST. Finally I ask, now we have opened up essentially all wavelength windows, whether the exploration of survey discovery space is ended. I examine other possible axes of discovery space, and find them mostly to be too expensive to explore or otherwise unfruitful, with two exceptions : the first is the time axis, which we have only just begun to explore properly; and the second is the possibility of neutrino astrophysics.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。