AstroTech: The Science and Technology behind Astronomical Discovery

开始时间: 04/22/2022 持续时间: Unknown

所在平台: CourseraArchive

课程类别: 物理与地球科学

大学或机构: The University of Edinburgh(爱丁堡大学)

授课老师: Catherine Heymans Andy Lawrence

课程主页: https://www.coursera.org/course/astrotech

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课程详情

"How do they know that?"

Modern astronomy has made some astonishing discoveries - how stars burn and how black holes form; galaxies from the edge of the universe and killer rocks right next door; where the elements come from and how the expanding universe is accelerating. But how do we know all that? The truth is that astronomy would be impossible without technology, and every advance in astronomy is really an advance in technology. But the technology by itself is not enough. We have to apply it critically with a knowledge of physics to unlock the secrets of the Universe.

Each week we will cover a different aspect of Astronomical technology, matching each piece of technology to a highlight science result.   We will explain how the technology works, how it has allowed us to collect astronomical data, and, with some basic physics, how we the interpret the data to make scientific discoveries.

课程大纲

Week-1 - Science and Technology : a marriage made in Heaven

  •   Our Knowledge of the Universe
  •   Revolutions in Astronomy
  •   Why Astronomy is hard
  •   The Horse and the Cart

 

Week-2 - Telescopes : Picturing the Universe

  •   Example story : we are stardust
  •   The technology : how telescopes work
  •   Putting it together : we are stardust part II 
  •   Big Telescopes of the future

 

Week-3 - Space : Getting above it all

  •   Example story : hunting for black holes
  •   The technology : rockets, spacecraft, and orbits
  •   Putting it together : hunting for black holes part II
  •   The future : can space missions get cheaper?

 

Week-4 - Detectors : Catching the light from the stars

  •   Example story : galaxies from the dawn of time
  •   The technology : CCDs and infra-red arrays
  •   Putting it together : galaxies from the dawn of time part II
  •   Is there another revolution in detector technology?

 

Week-5 - Computers : Crunching the data

  •   Example story : killer rocks
  •   The technology : computers, databases and the internet
  •   Putting it together : killer rocks part II
  •   The future : hitting the buffers?

 

Week-6 - Spectrographs : Taking the fingerprints of the stars

  •   Example story : the accelerating universe and dark energy
  •   The technology : how spectrographs work
  •   Putting it together : dark energy part II
  •   The perfect spectrograph?


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课程简介

How astronomy really works - an overview of the technology that astronomers use to collect and measure light from the universe, and how it is used in practice to make scientific discoveries.

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爱丁堡大学

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