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所在平台: Coursera |
课程主页: https://www.coursera.org/learn/black-holes-astro-101
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课程名称：宇宙101：黑洞 课程概述：黑洞是什么？它们真的存在吗？黑洞是如何形成的？与恒星有什么关系？如果你掉进黑洞会发生什么？黑洞如何在没有光的情况下被看到？黑洞和极暗的恒星有什么区别？粒子加速器能否创造出黑洞？黑洞是否也可以是虫洞或时间机器？ 在《宇宙101：黑洞》这门课程中，您将探索黑洞的相关概念。通过黑洞这个主题，您将学习天文学、相对论和量子物理的基本概念。 完成此课程后，您将能够： - 描述黑洞的基本特性。 - 用通俗易懂的语言和适当的比喻解释最新的黑洞研究。 - 比较网络文化中的黑洞和现代物理，区分科学事实和科幻。 - 描述重力、狭义和广义相对论及量子力学等基本物理概念在科学观察中的应用。 - 识别不同类型的恒星，并区分出潜在会变成黑洞的恒星。 - 区分不同类型的黑洞，并将每种类型归类为观察到的或理论上的。 - 阐述与每种类型黑洞相关的形成理论。 - 识别不同的黑洞探测方法及与每种探测方法相关的技术。 - 总结现代科学中黑洞研究面临的难题。 课程大纲： 1. 黑洞简介：了解黑洞的基本结构、术语及黑洞物理的历史。 2. 恒星的生与死：学习恒星的生命周期、能量产生与辐射，以及恒星死亡所产生的各种物质。 3. 时空结构：探讨在接近光速旅行时的情况和黑洞附近时间的变化。 4. 黑洞的大小：探索各种黑洞的尺寸和可测量特性，包括主要的四种类型及其形成理论。 5. 接近黑洞：探讨从伴星转移到黑洞的物质过程，以及黑洞如何撕裂周围的物质。 6. 穿越事件视界：深入黑洞内部的基本结构及其旋转现象，探讨奇点和虫洞的概念。 7. 黑洞内部：探索黑洞的理论侧面，了解量子力学和热力学的相关主题。 8. 黑洞的探寻：学习天文学家如何观察黑洞，包括对吸积盘和喷流的研究。 9. 天空中的眼睛：了解黑洞如何随时间变化及其检测方法。 10. 引力波的研究：探讨如何研究没有可见伴星的黑洞，引入引力辐射的概念。 通过这门课程，您将深入了解黑洞的诸多方面，从基本概念到最新研究，为您提供一个全面的理解。
Name:Introduction to Black Holes
Description:Hello and welcome to the first module of Astro 101! In this module, you will become familiar with the basic structure of a black hole, learn the terminology used to describe them, and explore the history of black hole physics.
Name:Life and Death of a Star
Description:Stars are the progenitors of black holes. In this module the student will learn about the lifecycle of stars, how stars produce energy, and how they radiate away energy. We will explore the death of stars, and what is produced by the death of stars, on all scales ; from the building blocks of life (carbon) to black holes.
Name:The Structure of Spacetime
Description:What happens if you travel close to the speed of light? What happens to the passage of time as you fall towards a black hole? This module will explore relativity. We look at the many ways black holes affect the universe around them from discussions of reference frames through to the change in the passage of time as you approach a black hole.
Name:Sizing Up Black Holes
Description:So far discussion has focussed on either the general case for black holes, of the stellar mass variety (endpoint of a star's life). In this module students will explore the various sizes of black holes and their measurable properties. Students will learn that there are four major types of astrophysical black holes (primordial/mini black hole’s, stellar mass, intermediate mass and supermassive black holes), and discover current theories on their formation, and what might feed them. Students will also gain an knowledge of ‘no-hair’ theorem and gravitational lensing. We will also explore the formation of supermassive black holes, intermediate mass black holes, and mini black holes in particle accelerators.
Name:Approaching a Black Hole
Description:What would you see as you approached a black hole, using a black hole binary as a vehicle to explore black holes? In this module students will follow material as it is transferred from a companion star to a black hole via Roche lobe overflow or wind fed accretion. They will then follow that material down through the accretion disc to explore tidal forces to learn about the ways in which black holes can rip apart surrounding material. This material will then pass through the innermost stable orbit of the disc, before falling in. Students will also get the opportunity to look at jets - the outflow of material from the innermost regions of this structure. Module Objective: Introduce properties of black holes from the outside in, through the context of a journey into the event horizon of a black hole. What would we see as we are far away? What will we see and experience as we get closer? What is a disc? What is a jet?
Name:Crossing the Event Horizon
Description:Module Description: What would happen if you fell into a black hole? In this module students continue on their journey through a black hole binary system, from the innermost stable orbit of the accretion disc to the singularity itself. Students will learn about the structure of a basic black hole, as well as rotating black holes. Students will explore the concept of wormholes and singularities. Module Objectives: Students will learn about the innermost region around a black hole, about its lack of surface and about the presence and definition of an event horizon. Students will also explore the impact that spin can have on this region, and how it is measured. Finally they will look inside the event horizon to discover the basic concepts of singularities and wormholes.
Name:Inside a Black Hole
Description:What is in a black hole? This module will start to explore the theoretical side of black hole physics. You will receive a basic introduction to relevant topics of Quantum Mechanics and thermodynamics with the aim of understanding current black hole debates among the giants of the field.
Name:Hunting for Black Holes
Description:If black holes absorb all light, how do we see them? In this module, you will explore how astronomers observe real black holes, from studies of accretion discs and jets to the study of material orbiting a black hole.
Name:Our Eyes in the Skies
Description:Black holes change over time. This module will focus on how and why black holes change as well as how we look for these changes.
Name: Riding the Gravity Wave
Description:How do you study a black hole that has no visible companion? In this module the student will be introduced to gravitational radiation. With the 2016 LIGO discovery of gravitational waves, a whole new branch of astronomy has been opened.
What is a black hole? Do they really exist? How do they form? How are they related to stars? What would happen if you fell into one? How do you see a black hole if they emit no light? What’s the difference between a black hole and a really dark star? Could a particle accelerator create a black hole? Can a black hole also be a worm hole or a time machine? In Astro 101: Black Holes, you will explore the concepts behind black holes. Using the theme of black holes, you will learn the basic ideas of astronomy, relativity, and quantum physics. After completing this course, you will be able to: • Describe the essential properties of black holes. • Explain recent black hole research using plain language and appropriate analogies. • Compare black holes in popular culture to modern physics to distinguish science fact from science fiction. • Describe the application of fundamental physical concepts including gravity, special and general relativity, and quantum mechanics to reported scientific observations. • Recognize different types of stars and distinguish which stars can potentially become black holes. • Differentiate types of black holes and classify each type as observed or theoretical. • Characterize formation theories associated with each type of black hole. • Identify different ways of detecting black holes, and appropriate technologies associated with each detection method. • Summarize the puzzles facing black hole researchers in modern science.
