Wide Area Extragalactic HI Mapping with ALFA

We are leading the Arecibo Legacy Fast ALFA survey: ALFALFA, a survey of 7000 sq deg of the high latitude sky visible from Arecibo. We invite you to check out the ALFALFA web site

You can access the ALFALFA survey data releases through the Cornell EGG digital archive.

ALFA is the Arecibo L-band Feed Array, a 7 beam feed array that allows fast mapping of the sky with the Arecibo telecope.

Martha with ALFA after it arrives in Arecibo, April 2004.