Solar Spectrum wavelength in Å Joseph von Fraunhofer, 1814.

Slides:



Advertisements
Similar presentations
SpectraSpectraSpectraSpectra How do we know what elements are in stars???
Advertisements

Video Field Trip: Fireball
Spectroscopy Study Guide
The Light Fantastic! Astronomy relies on messages from all kinds of light.
Spectroscopy: and finding out the elements of deep space objects.
Physics 202: Introduction to Astronomy – Lecture 5 Carsten Denker Physics Department Center for Solar–Terrestrial Research.
Taking the fingerprints of stars, galaxies, and interstellar gas clouds Absorption and emission from atoms, ions, and molecules.
Astronomy Picture of the Day. Why Can We See Each Other? Light emitted from other sources is reflected off of us. We don’t radiate in the visible part.
Radiation Curves. Continuous Radiation How bright is the continuous spectrum at different colors? How does a perfect light source emit its light? 400nm.
CHEM 4531: Physical Chemistry II Spring 2011 J. M. Weber.
Solar Spectrum. Bit of Administration …. c = 3 x 10 8 m/sec = 3 x 10 5 km/secc = 3 x 10 8 m/sec = 3 x 10 5 km/sec Reading Reading –BSNV pp
2.3 Electron Arrangement Atomic Emission Spectra &
Chapter 4 Spectroscopy Chapter 4 opener. Spectroscopy is a powerful observational technique enabling scientists to infer the nature of matter by the way.
Chapter 4 Spectroscopy.
FYNvpI. Topic 3: The Spectrocope: New Meanings in Light Science 9 - Space.
Stars and Galaxies 28.1 A Closer Look at Light Chapter 28.
Atmospheric Transparency General rule: radiation interacts with objects ~λ in size … UV and other short-λ : ozone (Freon problem) IR : CO 2 (global warming/greenhouse.
Lecture II Light spectra. The Birth of the Quantum Max Planck –The energy contained in radiation is related to the frequency of the radiation by the relationship.
Spectra  Chemistry and Doppler Effect Lecture 10.
Atoms & Light (Spectroscopy). Blackbody Radiation A. Blackbody = a hot solid, hot liquid, or hot high density gas that emits light over a range of frequencies.
Quantum Theory, Part I The Atom Day 4 Prism n White light is made up of all the colors of the visible spectrum. –Passing it through a prism separates.
Lab 5 – Emission Spectra.
What if Anything is Wrong Task – Light Emission. View the emission spectrum for Hydrogen.
Spectroscopy and Atoms
Dividing Light Into a Spectrum Astronomers separate out light into its individual components using a diffraction grating or using a prism - then they analyze.
Light, Colors & Stars Using Spectroscopy to Investigate Temperature, Motion & Composition at a Distance A Question & Story to start us off.
Cool, invisible galactic gas (60 K, f peak in low radio frequencies) Dim, young star (600K, f peak in infrared) The Sun’s surface (6000K, f peak in visible)
Light and The Electromagnetic Spectrum Why do we have to study “light”?... Because almost everything in astronomy is known because of light (or some.
Questions: What is a continuous spectrum?
Waves: Characteristics:
Studying the Sun Notes H- Study of Light Chapter 24
Newton studies the Sun’s spectrum
Bohr’s Model of the Atom
Homework #4 An asteroids closest approach to the Sun (perihelion) is 2 AU, and farthest distance from the Sun (aphelion) is 4 AU. 1) What is the semi major.
Light is the only information we get from most astronomical objects
Solar Spectrum wavelength in Å Joseph von Fraunhofer, 1814.
Spectroscopy Lecture.
Most of what is known about stars comes from spectral studies.
Spectroscopy and Atoms
3.2 Bohr’s model of the Atom
BOHR’S ATOM AND ATOMIC SPECTRA
Atomic Spectra Lab 1.
Quantum Physics Atomic spectra and atomic energy states.
Star Spectra Essential Question? How is information from what we see so informative about stars?
Why Light, why now?.
The Spectroscope: New Meanings in Light
 Spectroscopy continued 
Joel E. Tohline, Alumni Professor
Chapter 4.
Spectra.
Electromagnetic Radiation
Probing Venus with radio waves
Starlight To learn more about stars, we need more information, more data Analysis of starlight.
 Spectroscopy continued 
Optical Telescopes, Radio Telescopes and Other Technologies Advance Our Understanding of Space Unit E: Topic Three.
ATOMIC SPECTRA.
Light and The Electromagnetic Spectrum
Continuous, Emission, and Absorption
The Spectroscope: New Meanings in Light
Spectroscopy.
Light and The Electromagnetic Spectrum
3.5 Energy levels and spectra
Prepare your scantron:
Continuous, Emission, and Absorption
5.4 Learning from Light Our goals for learning
Spectra Lab.
Key Areas covered The bohr model of the atom
Electromagnetic Radiation
Electromagnetic Spectrum
Dust in the Orion nebula: Opaque to visible light, dust is created in the outer atmosphere of massive cool stars and expelled by a strong outer wind of.
Presentation transcript:

Solar Spectrum wavelength in Å Joseph von Fraunhofer, 1814

Radiation from hot objects

Emission Spectra Emission spectrum of Hydrogen

Emission Spectra Emission spectrum of Hydrogen Emission spectrum of Iron

Kirchhoff’s Three Laws of Spectroscopy: Light from a hot solid object has a continuous spectrum with no dark lines The same light, passed through a cool gas has the same spectrum, but with certain wavelengths missing  dark lines (absorption spectrum) Light emitted by a hot gas  bright lines superimposed on an otherwise black background  emission spectrum UV IR

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.