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Article Dans Une Revue The Astronomical Journal Année : 2005

The Arecibo Legacy Fast ALFA Survey. I. Science Goals, Survey Design, and Strategy

N. Brosch
  • Fonction : Auteur

Résumé

The 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 superclusters, allow measurement of the H I diameter function, and enable a first wide-area blind search for local H I tidal features, H I absorbers at z

Dates et versions

hal-03786277 , version 1 (23-09-2022)

Identifiants

Citer

Riccardo Giovanelli, Martha P. Haynes, Brian R. Kent, Philip Perillat, Amélie Saintonge, et al.. The Arecibo Legacy Fast ALFA Survey. I. Science Goals, Survey Design, and Strategy. The Astronomical Journal, 2005, 130, pp.2598-2612. ⟨10.1086/497431⟩. ⟨hal-03786277⟩
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