课程信息

7,398 次近期查看

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.

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100% 在线

立即开始，按照自己的计划学习。

初级

完成时间大约为22 小时

英语（English）

字幕：法语（French）, （欧洲人讲的）葡萄牙语, 俄语（Russian）, 英语（English）, 西班牙语（Spanish）

可灵活调整截止日期

根据您的日程表重置截止日期。

可分享的证书

完成后获得证书

100% 在线

立即开始，按照自己的计划学习。

初级

完成时间大约为22 小时

英语（English）

字幕：法语（French）, （欧洲人讲的）葡萄牙语, 俄语（Russian）, 英语（English）, 西班牙语（Spanish）

授课教师

授课教师评分

4.73/5 （57 个评分）

Dr. Terry A. Matilsky

Professor

Physics and Astronomy

15,754 个学生

1 门课程

授课大纲 - 您将从这门课程中学到什么

内容评分98%（1,653 个评分）

周

1

周 1

完成时间为 4 小时

Light and the Nature of Images....Plus, an Introduction to DS9

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!

完成时间为 4 小时

7 个视频（总计 87 分钟）, 4 个阅读材料, 1 个测验

7 个视频

Course Overview4分钟

Lecture 1 The Nature of Images 13分钟

Lecture 2 Image Formation 14分钟

Lecture 3 Skipping Stones and X-ray Images 10分钟

Lecture 4 The Perception of Images 17分钟

Lecture 5 Introduction to DS9--Part I 6分钟

Lecture 6 Introduction to DS9--Part II 20分钟

4 个阅读材料

Introduction10分钟

Syllabus10分钟

Light and the Nature of Images. Plus, an introduction using DS910分钟

Week 1 Wiki1小时

1 个练习

Quiz 1: Week 11小时

周

2

周 2

完成时间为 4 小时

Basic Astronomical Data and a DS9 Smorgasbord

Welcome to week two of "Analyzing the Universe". This week we will be exploring some of the means we have at our disposal to find out many things about the stars. It is really quite incredible that these tiny pinpoints of light can yield so much information about their nature and about the structure of the Universe as a whole. And if this is your first visit to the course, welcome and jump right in!

完成时间为 4 小时

5 个视频（总计 109 分钟）, 2 个阅读材料, 1 个测验

周

3

周 3

完成时间为 3 小时

Stellar Evolution and White Dwarfs

This week is our first in-depth look at an x-ray source, and it involves a white dwarf in a binary system. So sharpen up your detective skills, keep your copy of DS9 at the ready, and let's get down to business. It should be an exciting week.

完成时间为 3 小时

4 个视频（总计 67 分钟）, 2 个阅读材料, 1 个测验

周

4

周 4

完成时间为 4 小时

Orbits, Gravity, and Clocks in the Sky

This week we turn our attention to another fascinating cosmic source, discovered in the infancy of x-ray astronomy: Cen X-3. In so doing, we will see how binary stars can determine and influence many of the interesting and surprising features of our observations.

完成时间为 4 小时

7 个视频（总计 113 分钟）, 2 个阅读材料, 1 个测验

7 个视频

Week 4 - Lecture 1 Orbits 23分钟

Lecture 2 A Matter of Some Gravity 16分钟

Lecture 3 Of Hummingbirds, Trains and The Doppler Shift 12分钟

Lecture 4 Clocks in the Sky-- Cen X-3, Part 1--Exosat 14分钟

Lecture 5 Clocks in the Sky-- Cen X-3, Part 2 14分钟

Lecture 6 Clocks in the Sky-- Cen X-3, Part 3 15分钟

Lecture 7 Clocks in the Sky--Cen X-3, Part 4--Chandra 15分钟

2 个阅读材料

Clocks in the Sky10分钟

Week 4 Wiki1小时

1 个练习

Quiz 4: Week 41小时

审阅

4.8

83 条评论

5 stars
85.11%
4 stars
12.09%
2 stars
0.93%
1 star
1.86%

来自宇宙分析的热门评论

由 AG 提供Jul 16, 2017

Good course. Great data given to work on. Excellent instructor.

由 NN 提供Feb 17, 2018

My first and best course for now! I am very happy to touch this topic, thank you very much!

由 OM 提供Feb 9, 2019

Amazing detail, amazing insight. Take your time with this course, and dig in. I may have to take if a few times if I have time.

由 SS 提供Apr 19, 2021

I find it helpful in my university programs. And help me to get good knowledge about universe.

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