'Blackbody spectrum' diaporamas de présentation

Announcements

Announcements. Learn about SAIC's own Graduating Fellowship Program from Romi Crawford, Director, Visiting Artists Program and Denenge Akpem, Fellowship & VAP Coordinator Thursday, February 12 at 12:15 in 112 S. Michigan Building, Room 816. Class website.

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Chapter 7: Atoms and starlight

Chapter 7: Atoms and starlight. Not all of these light sources emit the same kind of light. Fluorescent light. The Sun!. Incandescent Bulb. Halogen bulb. Each part of the EM spectrum provides us with different information.

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The Solar Corona

The Solar Corona. Steven R. Spangler Department of Physics and Astronomy University of Iowa. Basic facts on the Sun. Distance: 149.6 million km (1 astronomical unit) Radius: 696,000 km (6378 km for Earth) Mass: 1.989E30 kg (5.97E24 kg for Earth).

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Light

Light. Radiation and Spectra Chapter 5. What is Light?. Newton Prism shows white light contains all colors Light made of particles (photons) Maxwell Theory of electricity and magnetism Light is electromagnetic waves Produced by wiggling electrons Radiation = production of light

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TEMPERATURE

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Stellar Spectroscopy

Stellar Spectroscopy. Introduction. Spectroscopy is a branch of science that is concerned with the investigation and measurement of the spectrum of light produced when matter interacts with electromagnetic radiation.

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Stellar Spectroscopy

Stellar Spectroscopy. Introduction. Spectroscopy is a branch of science that is concerned with the investigation and measurement of the spectrum of light produced when matter interacts with electromagnetic radiation.

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Active Galaxies

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Modern Physics Lecture III

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20 th century cosmology

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PHY 102: Waves & Quanta Topic 11 EM Radiation from atoms John Cockburn (j.cockburn@... Room E15)

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20 th century cosmology

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Goal: To understand how light acts like a particle

Goal: To understand how light acts like a particle. Objectives: To learn about Quantization To understand Blackbody radiation To learn more about The photon To learn about the Photoelectric Effect. Quantization. Okay this is an ugly looking word.

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Blackbody Radiation

Blackbody Radiation. A blackbody is something that absorbs all radiation that shines on it Are all blackbodies black? no!! imagine a box full of lava. A constant temperature blackbody (a.k.a. a very precise oven). Order your own blackbody online. Blackbodies and Astronomy.

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Sub-Orbital Observations for Big Bang Cosmology

Sub-Orbital Observations for Big Bang Cosmology . AJ Scaramucci. Big Bang. The Big Bang Model is a broadly accepted theory for the origin and evolution of our universe. http://www.mssl.ucl.ac.uk/www_astro/guides/bubble_anim.gif. Foundation for the Big Bang Model.

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Quick quiz 3

Quick quiz 3 . What is the typical size of an atomic nucleus?. 10 -17 m 10 -15 m 10 -13 m 10 -11 m 10 -9 m. What is the typical size of an atom (and almost exactly the O-H bond length in water). 10 -16 m 10 -14 m 10 -12 m 10 -10 m 10 -8 m.

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Two Conditions for an object to emit Blackbody Radiation:

Two Conditions for an object to emit Blackbody Radiation: It must be at a uniform temperature. (one average speed for its atoms) It must be opaque. (otherwise it would produce emission lines). Properties of Blackbody Spectra:

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