Analyzing the Universe

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课程主页: https://www.coursera.org/archive/analyze

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Rutgers the State University of New Jersey

课程大纲

Welcome to Week 1 of "Analyzing the Universe!" This week we explore the nature of light, and how we get astronomical information from the images we obtain. The lectures and "wiki" material address these themes: light, image formation, and DS9. Dive right in!

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Using publicly available data from NASA of actual satellite observations of astronomical x-ray sources, we explore some of the mysteries of the cosmos, including neutron stars, black holes, quasars and supernovae. We will analyze energy spectra and time series data to understand how these incredible objects work. We utilize an imaging tool called DS9 to explore the amazing diversity of astronomical observations that have made x-ray astronomy one of the most active and exciting fields of scientific investigation in the past 50 years. Each week we will explore a different facet of x-ray astronomy. Beginning with an introduction to the nature of image formation, we then move on to examples of how our imaging program, DS9, can aid our understanding of real satellite data. You will using the actual data that scientists use when doing their work. Nothing is "canned". You will be able to appreciate the excitement that astronomers felt when they made their important discoveries concerning periodic binary x-ray sources, supernovae and their remnants, and extragalactic sources that have shaped our understanding of cosmology.

分析宇宙:使用来自NASA的公开的有关天文学X射线源实际卫星观测数据,我们探索了宇宙的一些奥秘,包括中子星,黑洞,类星体和超新星。我们将分析能谱和时间序列数据,以了解这些不可思议的物体是如何工作的。我们使用一种称为DS9的成像工具来探索令人惊奇的天文观测多样性,这使X射线天文学成为过去50年来最活跃,最令人兴奋的科学研究领域之一。 每周我们将探索X射线天文学的不同方面。从介绍图像形成的本质开始,然后我们继续介绍一些示例,说明我们的成像程序DS9如何帮助我们理解真实的卫星数据。您将使用科学家在进行工作时使用的实际数据。没有什么是“罐头的”。您将能够欣赏到天文学家在进行有关周期性二元X射线源,超新星及其残留物以及河外源的重要发现时所感受到的兴奋,这些影响塑造了我们对宇宙学的理解。

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