Things to Know Before Workshop

• Basic celestial sphere stuff, with particular relevance to fixed-azimuth drift scan observing at Arecibo (18deg north latitude).
  Measuring the Sky (Celestial Sphere and Time and Coordinates sections)
  Nice Sky Motion Animation from U. Nebraska
  Time Zones (ALFALFA blog)
  Introduction to Arecibo Observatory Lecture by Martha Haynes


• Basic properties of galaxies and how they are measured.
  A Galaxy Primer
  Cornell Astro 201 FAQ about galaxies


• The 21 cm line and its importance to astronomy.
  The 21-cm Line: The Physics (ALFALFA Blog)
  The 21-cm Line: Why Observe It? (ALFALFA Blog)
  ALFALFA and HI in Galaxies


• Hubble's law, large scale structure and the Virgo cluster
  Atlas of the Universe
  Hubble's Law
  What's in an Environment? (ALFALFA Blog)
  Universe in a Box
  
  
• Galaxy surveys and databases, including especially NED, the DSS2, and the SDSS.
  ALFALFA Introduction to Galaxy Surveys, including exercises

• NRAO 'What is Radio Astronomy?' website .
  In particular How Radio Telescopes Work and How Radio Waves are Produced


• SDSS Galaxy Tutorials


• Celestial coordinates, time and ALFALFA


• Basics of IDL.
  An Introduction to using IDl for ALFALFA


• Basics of ALFALFA Observing
What is ALFA? (ALFALFA blog)
ALFALFA Observing Mode
Rotating ALFA for ALFALFA
ALFALFA Two Pass Strategy Radio Astronomy, Arecibo, and using ALFA for ALFALFA
Observing Log (ALFALFA blog)
Reducing ALFALFA Data: Processing (ALFALFA Blog)
Reducing ALFALFA Data: Flagging (ALFALFA Blog)
Reducing ALFALFA Data: Gridview

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