Things to Know Before Workshop

• Basic celestial sphere stuff, with particular relevance to fixed-azimuth drift scan observing at Arecibo (18deg north latitude).
  Time Zones (ALFALFA blog)
  More Details on Coordinates and Time Zones (See Celestial Sphere and Time and Coordinates sections)
  Nice Sky Motion Animation from U. Nebraska
  
  
• Basic properties of galaxies and how they are measured.
  A Galaxy Primer
  Cornell Astro 201 FAQ about galaxies


• Background information about Radio Astronomy, Arecibo, & ALFALFA
  NRAO 'What is Radio Astronomy?' website .
  In particular What are Radio Telescopes? and Types of Radio Waves

Introduction to Arecibo Observatory Lecture by Martha Haynes
Radio Astronomy, Arecibo, and using ALFA for ALFALFA


• 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 and Structure of the Universe
  Atlas of the Universe
  Hubble's Law
  Universe in a Box
  
  

• Introduction to the SDSS survey
• Video Introduction to the SDSS
• SDSS Galaxy Tutorials


• Celestial coordinates, time and ALFALFA


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

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