Об этом курсе: 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.
Автор: Ратгерский университет штата Нью-Джерси
Преподаватели: Dr. Terry A. Matilsky, Professor
Physics and Astronomy
| Уровень | Beginner |
| Выполнение | 6 weeks of study, 5 hours per week |
| Язык | English |
| Как пройти курс | Чтобы пройти курс, выполните все оцениваемые задания. |
| Оценки пользователей |
Программа курса
НЕДЕЛЯ 1
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!
7 видео, 4 материалов для самостоятельного изучения
- Видео: Course Overview
- Leyendo: Introduction
- Leyendo: Syllabus
- Leyendo: Light and the Nature of Images. Plus, an introduction using DS9
- Видео: Lecture 1 The Nature of Images
- Видео: Lecture 2 Image Formation
- Видео: Lecture 3 Skipping Stones and X-ray Images
- Видео: Lecture 4 The Perception of Images
- Видео: Lecture 5 Introduction to DS9--Part I
- Видео: Lecture 6 Introduction to DS9--Part II
- Leyendo: Week 1 Wiki
Оцениваемый: Quiz 1: Week 1
НЕДЕЛЯ 2
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!
5 видео, 2 материалов для самостоятельного изучения
- Leyendo: DS9 and Astronomical Data
- Видео: Week 2 - Lecture 1 The DS9 Smorgasbord--Part I
- Видео: Lecture 2 The DS9 Smorgasbord--Part II
- Видео: Lecture 3 "Lies, Damned Lies, and Statistics"
- Видео: Lecture 4 Atomic Spectra, the Fingerprints of the Stars
- Видео: Lecture 5 The Cosmic Distance Scale -- Part I
- Leyendo: Week 2 Wiki
Оцениваемый: Quiz 2: Week 2
НЕДЕЛЯ 3
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.
4 видео, 2 материалов для самостоятельного изучения
- Leyendo: GK Per -- An in depth analysis
- Видео: Week 3- Lecture 1 Putting It All Together-- The HR Diagram
- Видео: Lecture 2 Of GK-Per and White Dwarfs, Part 1
- Видео: Lecture 3 Of GK-Per and White Dwarfs, Part 2
- Видео: Lecture 4 Of GK-Per and White Dwarfs, Part 3
- Leyendo: Week 3 Wiki
Оцениваемый: Quiz 3: Week 3
НЕДЕЛЯ 4
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.
7 видео, 2 материалов для самостоятельного изучения
- Leyendo: Clocks in the Sky
- Видео: Week 4 - Lecture 1 Orbits
- Видео: Lecture 2 A Matter of Some Gravity
- Видео: Lecture 3 Of Hummingbirds, Trains and The Doppler Shift
- Видео: Lecture 4 Clocks in the Sky-- Cen X-3, Part 1--Exosat
- Видео: Lecture 5 Clocks in the Sky-- Cen X-3, Part 2
- Видео: Lecture 6 Clocks in the Sky-- Cen X-3, Part 3
- Видео: Lecture 7 Clocks in the Sky--Cen X-3, Part 4--Chandra
- Leyendo: Week 4 Wiki
Оцениваемый: Quiz 4: Week 4
НЕДЕЛЯ 5
Supernovae, Our Cosmic Recycling Centers
This week, we will be examining supernovae, and their remnants. These fascinating objects are the breeding grounds for future stars, and were the sources of virtually all the atoms that make up our solar neighborhood. Every atom of calcium in every bone in your body, for example, was once shot out of a supernova, billions of years ago.
2 видео, 2 материалов для самостоятельного изучения
- Leyendo: Cosmic Recycling Centers
- Видео: Week 5 - Lecture 1 Cosmic Recycling Centers and Cas-A, Part 1
- Видео: Lecture 2 Cosmic Recycling Centers and Cas-A, Part 2: "Color it X-ray"
- Leyendo: Week 5 Wiki
Оцениваемый: Quiz 5: Week 5
НЕДЕЛЯ 6
To the Ends of the Universe; Quasars, 3C273, and beyond
This week we wrap things up with trips to galaxies and exotic objects, seen long ago and far away. The mysterious quasars provide clues about the way our Universe is evolving in time. They are incredible objects (actually, come to think of it, what isn't incredible in the x-ray sky?) discovered almost exactly a half century ago, quite by accident. We will explore the astonishingly prodigious x-ray output of 3C 273, one of the nearest ones, at a mere 2.5 billion light years away.
5 видео, 3 материалов для самостоятельного изучения
- Leyendo: Coming into the home stretch
- Видео: Week 6 - Lecture 1 The Time Machine, Part 1
- Видео: Lecture 2 The Time Machine, Part 2
- Видео: Lecture 3 The Time Machine, Part 3
- Видео: Lecture 4 The Time Machine, Part 4
- Видео: Lecture 5 To the Ends of the Universe: The Cosmic Distance Scale -- Part II
- Leyendo: Week 6 Wiki
- Leyendo: Wrapping it all up
Оцениваемый: Quiz 6: Week 6
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Авторы
Ратгерский университет штата Нью-Джерси
Рейтинги и отзывы
best
My first and best course for now! I am very happy to touch this topic, thank you very much!
Great Course for first steps in analyzing the universe
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This course has been a pleasure to follow. The lectures are great, the quirky humour is refreshing and the material is very interesting. The quizzes are on the difficult side, but nothing impossible if you know how to handle and transform equations. The access to actual data from Chandra and other sources is what makes this course amazingly captivating. A huge thank you to Dr. Terry A. Matilsky and his team. I hope you'll make other courses like this in the future. Raphaël Rockus.