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R. Giovanelli (Cornell University)
The Arecibo Legacy Fast ALFA (ALFALFA) survey aims to map
7000 square degreees of the high galactic latitude sky
visible from Arecibo, providing an HI line spectral database
covering the redshift range between -1600 km/s and 18,000
km/s with 5 km/s resolution. Exploiting the Arecibo
telescope's large collecting area and small beam size,
ALFALFA is specifically designed to probe the faint end of
the HI mass function in the local universe and will provide
a census of HI in the surveyed sky area to faint flux
limits, making it especially useful in synergy with wide
area surveys conducted at other wavelengths. ALFALFA will
also provide the basis for studies of the dynamics of
galaxies within the Local and nearby superclusters, will
allow measurement of the HI diameter function, and enable a
first wide-area blind search for local HI tidal features, HI
absorbers at z<0.06 and OH megamasers in the redshift
range 0.16
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Bulletin of the American Astronomical Society, 37 #4
© 2005. The American Astronomical Soceity.