The Arecibo Legacy Fast ALFA Survey. I. Science Goals, Survey Design, and Strategy
- Giovanelli, Riccardo
- Haynes, Martha P.
- Kent, Brian R.
- Perillat, Philip
- Saintonge, Amélie
- Brosch, N.
- Catinella, Barbara
- Hoffman, G. Lyle
- Stierwalt, Sabrina
- Spekkens, Kristine
- Lerner, Mikael S.
- Masters, Karen L.
- Momjian, Emmanuel
- Rosenberg, Jessica L.
- Springob, Christopher M.
- Boselli, Alessandro
- Charmandaris, Vassilis
- Darling, Jeremy K.
- Davies, Jonathan
- Garcia Lambas, Diego
- Gavazzi, Giuseppe
- Giovanardi, Carlo
- Hardy, Eduardo
- Hunt, Leslie K.
- Iovino, Angela
- Karachentsev, Igor D.
- Karachentseva, Valentina E.
- Koopmann, Rebecca A.
- Marinoni, Christian
- Minchin, Robert F.
- Muller, Erik
- Putman, Mary
- Pantoja, Carmen
- Salzer, John J.
- Scodeggio, Marco
- Skillman, Evan
- Solanes, José M.
- Valotto, Carlos
- van Driel, Willem
- van Zee, Liese
DOIAbstract
International audienceThe recently initiated Arecibo Legacy Fast ALFA (ALFALFA) survey aims to map ~7000 deg2 of the high Galactic latitude sky visible from Arecibo, providing a H I line spectral database covering the redshift range between -1600 and 18,000 km s-1 with ~5 km s-1 resolution. Exploiting Arecibo's large collecting area and small beam size, ALFALFA is specifically designed to probe the faint end of the H I mass function in the local universe and will provide a census of H I 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 Supercluster and nearby ...
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