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Newton showed that white light is composed of all the colors of the rainbow.
This tool from the Light and Spectroscopy tutorial.
This tool from the Light and Spectroscopy tutorial.
Note that students may not be familiar with the notation concerning ions, especially
since the book does it slightly differently in the text than it does in this figure, (i.e. +2
vs. ++) so this may need to be explained.
You can use this slide as an example of real astronomical spectra made from a combination
of the idealized types. Here we have the continuous (thermal) spectrum from the solar
interior; dark absorption lines where the cooler solar atmosphere (photosphere)
absorbs specific wavelengths of light.
Remind students that the intensity is per area; larger objects can emit more total
light even if they are cooler.
Remind students that the intensity is per area; larger objects can emit more total light even if they are cooler.
Remind students that the intensity is per area; larger objects can emit more total
light even if they are cooler.
Remind students that the intensity is per area; larger objects can emit more total
light even if they are cooler.
Remind students that the intensity is per area; larger objects can emit more total light even if they are cooler.
This figure from the book can give an introduction to the Doppler effect.
This and the following slides are tools from the Doppler Effect tutorial.