20. CSI Galaxies - Unlocking a Galaxys Evolutionary Path...

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Universe: Unlocking a Galaxy’s Evolutionary Path
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Universe: Unlocking a Galaxy’s Evolutionary Path Crime: Violence between galaxies
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Image Credits, L-R, T-B: Bill Schoening, Vanessa Harvey/REU program/NOAO/AURA/NSF; T.A. Rector/University of Alaska Anchorage, H. Schweiker/WIYN and NOAO/AURA/NSF; T.A.Rector and Monica Ramirez/NOAO/AURA/NSF; NOAO/AURA/NSF; NOAO/AURA/NSF ; NOAO/AURA/NSF Galaxies around us appear fully formed. ..
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All images from ESO But, we do see evidence of change
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ESO Centaurus A (NGC 5128)
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ESO credit: E. Peng and H. Ford (JHU), K. Freeman (ANU), R. White (STScI), CTIO, NOAO, NSF Centaurus A (NGC 5128)
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ESO credit: E. Peng and H. Ford (JHU), K. Freeman (ANU), R. White (STScI), CTIO, NOAO, NSF X-ray - NASA , CXC , R.Kraft (CfA ), et al. Centaurus A (NGC 5128)
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So, how *do* galaxies form? Monolithic Collapse Hierarchical Merging Some combination? Image Credit: Paul MortFeld and Dietmar Kupke/NOAO
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Monolithic collapse explosive star forming episode Voila! NOAO/AURA/NSF
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Hierarchical Merging Scenario Top 6 from HUDF, Hubble; Bottom from NOAO/AURA/NSF Voi. ..la?
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How can we tell the difference? vs. ?
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So, how can we probe galactic history? Images 1, 2, & 3 from Hubblesite.org
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So, how can we probe galactic history? Images 1, 2, & 3 from Hubblesite.org
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So, how can we probe galactic history? Images 1, 2, & 3 from Hubblesite.org
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Look into the furthest reaches of space - distant galaxies appear in younger forms So, how can we probe galactic history? Images 1, 2, & 3 from Hubblesite.org
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This note was uploaded on 03/01/2011 for the course ASTRO 1a03 taught by Professor Samantha during the Spring '11 term at McMaster University.

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20. CSI Galaxies - Unlocking a Galaxys Evolutionary Path...

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