'Spectral lines' presentation slideshows

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Stars

Stars. Edward Murphy RARE CATS Summer 2001. Stellar Luminosity. The luminosity of a star is the rate at which it is giving off energy. Not all stars have the same luminosity. They range from 1/20 to 700,000 times the luminosity of the Sun. Luminosity varies with temperature.

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How to classify a star and to place it on the H-R diagram correctly??

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Unit 9, Chapter 28

Unit 9, Chapter 28. CPO Science Foundations of Physics. Unit 9: The Atom. Chapter 28 Inside the Atom. 28.1 The Nucleus and Structure of the Atom 28.2 Electrons and Quantum States 28.3 The Quantum Theory. Chapter 28 Objectives. Describe the structure of an atom.

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Spectroscopy

Spectroscopy. Astronomers can learn an immense amount from the details of lines in the spectrum of light coming from planets and stars. This tool is used by chemists, biologists, physicists and all of the other natural sciences. It is based on the quantum or particle (photon) nature of light.

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The Big Bang Theory:

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Does Science have Limits?

Does Science have Limits?. Dr. Ard Louis Department of Physics University of Oxford. Biological self-assembly. http://www.npn.jst.go.jp/ Keiichi Namba, Osaka Biological systems self-assemble (they make themselves) Can we understand? Can we emulate? (Nanotechnology). Virus self-assembly.

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Introduction To Modern Astronomy II

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Chapter 25 Instruments for Optical Spectroscopy

Chapter 25 Instruments for Optical Spectroscopy. INSTRUMENT COMPONENTS

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Light and the Electromagnetic Spectrum

Light and the Electromagnetic Spectrum. Light Phenomenon. Isaac Newton (1642-1727) believed light consisted of particles By 1900 most scientists believed that light behaved as a wave. The Electromagnetic Spectrum.

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Light and the Electromagnetic Spectrum

Light and the Electromagnetic Spectrum. Light Phenomenon. Isaac Newton (1642-1727) believed light consisted of particles By 1900 most scientists believed that light behaved as a wave. . The Electromagnetic Spectrum.

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STAR BIRTH

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Classical vs Quantum Mechanics

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NOTES FOR THE DAY: Waves: Characteristics: wavelength, ? --distance of repetition (crest to crest).

NOTES FOR THE DAY: Waves: Characteristics: wavelength, ? --distance of repetition (crest to crest). frequency, f --no. of complete cycles passing a point in a given time (cycles/sec = Hertz or Hz). wave velocity, v --the speed of a crest (m/s).

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Fluorescent Lamps

Fluorescent Lamps. Question:. A fluorescent lamp tube is coated with a white powder on its inside surface. If that powder were not there, would the lamp appear brighter, dimmer, or about the same overall brightness, but with an unpleasantly bright white line near its center?.

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Lecture 38

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The Composition of the Universe

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Measuring the Hubble Constant

Measuring the Hubble Constant. The Scale of the Universe I: The Solar System. Pluto is 5.913 billion km (39.53 AU) from the Sun. The Oort cloud extends much further than this: out to around 100,000 AU or about 2 ly . The next closest star, Alpha Centauri, is 4.2ly away. 1ly=9.46 x 10 12 km.

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Multiwavelength Milky Way

Multiwavelength Milky Way Nine frames of Multiwavelength Milky Way credit: Dave Leisawitz Aitoff projections of Night Sky at Different Wavelengths, including 408 MHz, 240 mm, 3.5 mm, 2.5 eV, 2-10 keV, 511 keV, 1.809 MeV, > 100 MeV, and mulitwavelength mural

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