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C Ms Intro C Ms Intro Presentation Transcript

  • Star Formation Rates in High Redshift Galaxy Clusters By CM
  • High Redshift Galaxy Clusters
    • Clusters are areas that are highly dense within galaxies
    • Ancient galaxies
    • Earliest star-forming galaxies
    • Formed around the time of the Big Bang
    • High Redshift Galaxies are very far away
  • How do we study these clusters?
    • Spitzer Space Telescope
      • Launched on August 25, 2003
      • Takes images of objects and far-off galaxies
      • Uses infrared light
      • Cryogenically-cooled
  • Image taken by the Spitzer Space Telescope
  •  
  • Hubble Telescope
    • Uses mirrors to focus on objects
    • Advanced camera for surveys
    • Near-Infrared Camera and Multi-Object Spectrometer
    • Space Telescope Imaging Spectrometer
  • Image taken by the Hubble Telescope
  •  
  • Star Formation Rates
    • Rate at which stars form in galaxies
    • Many different types of star formation
    • Stars cannot form everywhere. There are certain requirements and standards that must be met in the surrounding environment for stars to form.
    • Because there are so many different ways that stars can form, there are a lot of equations that scientists use to determine specific star formation rates.
  • How to Find Star Formation Rates
    • Add up the light from the newly-formed stars
    • Add up light from the most massive stars and relate them to the total amount of stars being formed
    • IMF N=f(M)
  • Why should we study High Redshift Galaxies and SFR?
    • Look into the past
      • “ For the first time, we at last have real data to address the final frontier—but we need more observations. We must push even deeper into the universe, unveiling what happened during the initial 5 percent remaining distance back to the big bang.”
        • – Richard Ellis, California Institute of Technology
    • After studying what has already happened in the universe, scientists will be better suited to predict what will be happening in our galaxy in the future.
  • The End
  • Bibliography
    • &quot;High-Redshift Galaxies.&quot; 1999. 22 Aug. 2007 <http://astronomy.sussex.ac.uk/~iw21/highz>.
    • &quot;Hubble Approaches the Final Frontier: the Dawn of Galaxies.&quot; Hubble Site . 22 Aug. 2007 <http://hubblesite.org/newscenter/archive/releases/2004/28/text/>.
    • Keel, Bill. &quot;Star Formation in Galaxies.&quot; Sept. 2000. 26 Aug. 2007 <http://www.astr.ua.edu/keel/galaxies/sfr.html>.
    • &quot;Spitzer Space Telescope Research Program for Teachers and Students: Star Formation in High Redshift Clusters with Spitzer.&quot; Spitzer Space Telescope . 26 Aug. 2007 <http://coolcosmos.ipac.caltech.edu/cosmic_classroom/teacher_research/7-StarForm/index.shtml>.
    • &quot;Star-Formation Criteria and Star-Formation Rates.&quot; 26 Aug. 2007 <http://www-hpcc.astro.washington.edu/old_content/papers/neal/CSTreeSPH/node15.html>.