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Title: University of Oregon Physics Applets: Equivalent Width
Url: http://jersey.uoregon.edu/vlab/EW2/EW.html
Creator: Bothun, Greg
Publisher: University of Oregon
Description: This applet will provide students with a database of real stellar and galaxy spectra and a tool from which the equivalent width of a spectral feature can be measured. The tool allows the wavelength range of the spectral feature to be marked and a reference continuum point can be chosen. From this, the integrated spectral flux of the feature is converted into its equivalent width and reported. This applet can be used for instance to show how the strength of hydrogen lines changes as a function of temperature of a stellar atmosphere, or how the strengths of some metal lines (Calcium) depend on this, or how the shape of the continuum changes with temperature.
LC Classification: Education -- Theory and practice of education -- Teaching (Principles and practice) -- Instructional systems -- Computers in education. Electronic data processing -- Computer assisted instruction. Programmed instruction -- Interactive multimedia. Hypermedia
Science -- Astronomy -- Descriptive astronomy -- Stars -- Stellar spectroscopy -- Study of special types of spectra
Science -- Astronomy -- Study and teaching. Research
GEM Subject: Science -- Technology
Science -- Physics
Science -- Instructional issues
Key Concept: Astronomy -- Spectra
Astronomy -- Stars
Resource Type: Demonstrations
Instructional Materials
InteractiveResource (DCMI Type Vocabulary)
Laboratory Modules
Science Materials
Format: html
java
Audience: College/University Instructors
Higher Education
Secondary Education
Teachers
Technical School First Cycle
University First Cycle
Language: English
Access Rights: Free access
Subject: Astronomy
Stars
Date Of Record Release: 2011-06-15 03:00:02 (W3C-DTF)
Date Last Modified: 2010-03-24 13:06:34 (W3C-DTF)
Source: comPADRE  comPADRE
Full Record Views: 46
Resource URL Clicks: 4
Cumulative Rating: NOT YET RATED
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