Journal
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
Volume -, Issue 2, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1475-7516/2019/02/056
Keywords
CMBR experiments; CMBR polarisation; cosmological parameters from CMBR
Funding
- Simons Foundation [457687]
- Beecroft trust
- STFC through an Ernest Rutherford Fellowship [ST/P004474/1]
- COSMOS Network from the Italian Space Agency (ASI)
- RADIOFOREGROUNDS project - European Commission's H2020 Research Infrastructures [687312]
- INDARK initiative from the Italian Institute for Nuclear Physics (INFN)
- ALMA-CONICYT [31140004]
- STFC Ernest Rutherford Fellowship [ST/M004856/2]
- UK Science and Technology Facilities Council [ST/N000927/1]
- South African SKA Project (SKA SA)
- Natural Sciences and Engineering Research Council of Canada
- French National Research Agency (ANR) through project BxB [ANR-17-CE31-0022]
- CNES postdoctoral fellowship
- Vetenskapsradet (Swedish Research Council) [638-2013-8993]
- Oskar Klein Centre for Cosmoparticle Physics at Stockholm University
- DoE [DE-SC007859]
- LCTP at the University of Michigan
- Eric Schmidt Fellowship at the Institute for Advanced Study
- Friends of the Institute for Advanced Study
- NRF
- SKA-SA
- David Dunlap family
- University of Toronto
- NASA [ATP-NNX17AF87G]
- JSPS KAKENHI [JP16K21744, JP17H06134, JP17K14272]
- JSPS Leading Initiative for Excellent Young Researchers (LEADER)
- CONICYT [Anillo ACT-1417, QUIMAL-160009, FONDECYT 3170846]
- MEXT KAKENHI [JP17H01125]
- JSPS Core-to-Core Program
- World Premier International Research Center Initiative (WPI), MEXT, Japan
- European Research Council under the European Union's Seventh Framework Programme (FP/2007-2013)/ERC Grant [616170]
- JSPS [JP17F17025, JP18J02133]
- Senior Kavli Institute Fellowships at the University of Cambridge
- Netherlands organization for scientific research (NWO) VIDI grant [639.042.730]
- NSF [AST-1454881, AST-1517049, 1513618]
- Australian Research Council [FT150100074]
- University of Melbourne
- ERC Consolidator Grant CMBSPEC [725456]
- Jeff Bezos Fellowship at the Institute for Advanced Study
- Isaac Newton Trust Early Career Grant
- STFC studentship
- Beatrice and Vincent Tremaine Fellowship at CITA
- ESRC [ES/N013956/1] Funding Source: UKRI
- STFC [1662894, ST/P000673/1, ST/P000525/1, ST/S000488/1, ST/N000838/1, ST/P004474/2, ST/N000668/1, ST/N004019/1, ST/S00033X/1, ST/M004856/2, ST/P004474/1, ST/L000636/1, 1947326, 1964068, ST/L000652/1] Funding Source: UKRI
- Division Of Astronomical Sciences
- Direct For Mathematical & Physical Scien [1513618] Funding Source: National Science Foundation
- Australian Research Council [FT150100074] Funding Source: Australian Research Council
Ask authors/readers for more resources
The Simons Observatory (SO) is a new cosmic microwave background experiment being built on Cerro Toco in Chile, due to begin observations in the early 2020s. We describe the scientific goals of the experiment, motivate the design, and forecast its performance. SO will measure the temperature and polarization anisotropy of the cosmic microwave background in six frequency bands centered at: 27, 39, 93, 145, 225 and 280 GHz. The initial con figuration of SO will have three small-aperture 0.5-m telescopes and one large-aperture 6-m telescope, with a total of 60,000 cryogenic bolometers. Our key science goals are to characterize the primordial perturbations, measure the number of relativistic species and the mass of neutrinos, test for deviations from a cosmological constant, improve our understanding of galaxy evolution, and constrain the duration of reionization. The small aperture telescopes will target the largest angular scales observable from Chile, mapping approximate to 10% of the sky to a white noise level of 2 mu K-arcmin in combined 93 and 145 GHz bands, to measure the primordial tensor-to-scalar ratio, r, at a target level of sigma(r) = 0.003. The large aperture telescope will map approximate to 40% of the sky at arcminute angular resolution to an expected white noise level of 6 mu K-arcmin in combined 93 and 145 GHz bands, overlapping with the majority of the Large Synoptic Survey Telescope sky region and partially with the Dark Energy Spectroscopic Instrument. With up to an order of magnitude lower polarization noise than maps from the Planck satellite, the high-resolution sky maps will constrain cosmological parameters derived from the damping tail, gravitational lensing of the microwave background, the primordial bispectrum, and the thermal and kinematic Sunyaev-Zel'dovich effects, and will aid in delensing the large-angle polarization signal to measure the tensor-to-scalar ratio. The survey will also provide a legacy catalog of 16,000 galaxy clusters and more than 20,000 extragalactic sources.(1)
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