Assignment - Galaxies May 2021.pdf - Name: _ Date: _...

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Name: _____________________________Date: ____________________________Galaxies AssignmentKnowledgeCommunicationApplicationThinking/ 15/ 5/ 10/ 61.Complete the following chart describing the properties of the different galaxies. (15K)Spiral/Barred SpiralS, BSEllipticalEIrregularIrrShape and StructuralPropertiesSpiral-central bulgesurrounded by aflat disk of stars-stars in the bulgeare typically older-it is thought thatthere is asupermassiveblack hole in thecenter of thebulge-arms and bulgesurrounded byfaint halo of starsBarred Spiral-the samestructure as aspiral galaxy-there’s a bar thatruns through thebulge, consistingof stars-stars affect themotion of starsand interstellargas, and can alsoaffect the arms ofthe spiral-no spiral arms-shapes rangingfrom highlyflattened toalmost spherical-random starmotion-faint halo of stars-dense nucleus-no identifiableshape or structure-chaoticappearance-- some have an“exploding” lookto them
Name: _____________________________Date: ____________________________Stellar Content-consists of youngand old stars-halos only haveold stars-

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