You should understand the words and concepts listed here:

• nebula
• interstellar medium
• dust
• clouds (nebulae)
• molecular cloud
• emission nebula
• 21-cm radiation
• stellar formation
• stage 1 - interstellar cloud
• stages 2 and 3 - contracting cloud
• stage 4 - protostar
• stage 5 - protostellar evolution
• stage 6 - a newborn star
• stage 7 - main sequence star
• zero-age main sequence
• brown dwarf
• star clusters
• open cluster
• globular cluster

This list covers the vocabulary added in chapter 11. It should be reviewd together with the corresponding vocabulary lists for chapters 10, 12 and 13.

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The URL for this page is http://www.atsweb.neu.edu/physics/m.vaughn/PHYU111_F07/vocabulary_11.html
posted 12 November 2007