AS101hw9 - the planet observes much of blue light The...

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J.I. AS101 Reading Question Chapter 5 #17 17. Describe each of the key features of the spectrum in Figure 5.20 and explain what it tells us about the object. Working from the higher frequency across through the visible frequency to the infrared we see various spikes and dips in intensity. Using these changes in frequency many things can be figured from them. In the Ultra Violet range there are emission lines that tell us that the planet has a hot upper atmosphere. The visible spectrum shows how the light emitted by the sun is reflected back. There is a dip in the blue range showing that
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Unformatted text preview: the planet observes much of blue light. The higher intensity of the red range means that the planet reflects much of the red light and would appear as a red planet. There are two portions in the infrared range that show where CO2 would also affect on its own. This reaction can mean there is a presence of carbon dioxide in the atmosphere. The infrared then peaks to show where thermal emissions from the surface would be giving an estimate of the temperature of the surface....
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This document was uploaded on 04/06/2008.

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