Journal
ASTRONOMY & ASTROPHYSICS
Volume 597, Issue -, Pages -Publisher
EDP SCIENCES S A
DOI: 10.1051/0004-6361/201526794
Keywords
methods: observational; inflation; radio continuum: galaxies
Categories
Funding
- UnivEarthS Labex programme at Universite Sorbonne Paris Cite [ANR-10-LABX-0023, ANR-11-IDEX-0005-02]
- REACH HIGH Scholars Programme - Post-Doctoral Grants
- European Union, Operational Programme II - Cohesion Policy
- Chaire d'Excellence Universite Sorbonne Paris Cite
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This paper describes a programme to map large-scale cosmic structures on the largest possible scales by using the Five hundred metre Aperture Spherical Telescope (FAST) to make a 21 cm (red-shifted) intensity map of the sky for the range 0.5 < z < 2.5. The goal is to map to the angular and spectral resolution of FAST a large swath of the sky by simple drift scans with a transverse set of beams. This approach would be complementary to galaxy surveys and could be completed before the Square Kilometre Array (SKA) could begin a more detailed and precise effort. The science would be to measure the large-scale structure on the size of the baryon acoustic oscillations and larger scale, and the results would be complementary to its contemporary observations and significant. The survey would be uniquely sensitive to the potential very large-scale features from inflation at the Grand Unified Theory (GUT) scale and complementary to observations of the cosmic microwave background.
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