Using the Web

1a.
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Go to the website for the Sloan Digital Sky Survey III, SDSS-III (http://sdss3.org/index.php), which has made a three-dimensional map of the sky. The 2012 video fly-through can be accessed at http://sdss3.org/press/dr9.php, and new ones may be posted as the project acquires more data. Why are the SDSS-III scientists making this map? What are the goals of the SDSS-III project? What do astronomers learn from this fly-through?
1b.
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Go to the website for the Galaxy and Mass Assembly (GAMA) survey (http://gama-survey.org). What are the science goals of this project? What are the observations? Are any results posted on the site?
2.
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Go to the website for the Bolshoi simulation (http://hipacc.ucsc.edu/Bolshoi). What is this simulation? Click on “Videos” to watch the Bolshoi and some other videos that compare observed and simulated universes. What do astronomers learn from these simulations? Are there any results yet from “Big Bolshoi”?
3.
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Go to the website for Galaxy Crash (http://burro.cwru.edu/JavaLab/GalCrashWeb), a Java applet that lets you run simple models of galaxy collisions. Read the sections under “Background” and then click on “Lab.” Pick an exercise from the list (or go to the one suggested by your instructor), and work through the questions.
4.
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Use your favorite search engine to find the highest-redshift galaxy, quasar, and GRB observed so far. Why are astronomers interested in finding objects at higher and higher redshifts? Why is it also important for astronomers to estimate the relative frequency of such objects, compared to the frequency at z = 6 or z = 2?
5.
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Go to the website for the new ALMA telescope (http://almaobservatory.org/en). What is unique about this telescope? How will it study the Dark Ages? Why is this telescope also going to do a “Deep Field” project? How will this project be different from the Deep Field observations with the Hubble Space Telescope? Look at the items under “ALMA Latest News.” Are there any reports about galaxy formation?

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