دورية أكاديمية
Dark Energy Survey Year 1 Results: A Precise H0 Estimate from DES Y1, BAO, and D/H Data
| العنوان: | Dark Energy Survey Year 1 Results: A Precise H0 Estimate from DES Y1, BAO, and D/H Data |
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| المؤلفون: | Abbott, Timothy M.C., Abdalla, F.B., Annis, J., Bechtol, K., Blazek, J., Benson, B.A., Bernstein, R.A., Bernstein, G.M., Bertin, E., Brooks, D., Burke, D.L., Carnero Rosell, A., Carrasco Kind, M., Carretero, J., Castander, F.J., Chang, C.L., Crawford, T.M., Cunha, C.E., D'Andrea, C.B., da Costa, L.N., Hartley, William G., The Dark Energy Survey Collaboration, The South Pole Telescope Collaboration |
| المصدر: | Monthly Notices of the Royal Astronomical Society, 480 (3) |
| بيانات النشر: | Oxford University Press |
| سنة النشر: | 2018 |
| المجموعة: | ETH Zürich Research Collection |
| مصطلحات موضوعية: | cosmological parameters, cosmology: observations, distance scale |
| الوصف: | We combine Dark Energy Survey Year 1 clustering and weak lensing data with baryon acoustic oscillations and Big Bang nucleosynthesis experiments to constrain the Hubble constant. Assuming a flat ΛCDM model with minimal neutrino mass (∑mν = 0.06 eV), we find H0=67.4⁺¹.¹₋₁.₂ kms⁻¹ Mpc⁻¹ (68 per cent CL). This result is completely independent of Hubble constant measurements based on the distance ladder, cosmic microwave background anisotropies (both temperature and polarization), and strong lensing constraints. There are now five data sets that: (a) have no shared observational systematics; and (b) each constrains the Hubble constant with fractional uncertainty at the few-per cent level. We compare these five independent estimates, and find that, as a set, the differences between them are significant at the 2.5σ level (χ²/dof = 24/11, probability to exceed = 1.1 per cent). Having set the threshold for consistency at 3σ, we combine all five data sets to arrive at H0=69.3⁺⁰.⁴₋₀.₆ kms⁻¹ Mpc⁻¹. ; ISSN:0035-8711 ; ISSN:1365-2966 |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/application/pdf |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/wos/000449616200081; http://hdl.handle.net/20.500.11850/305915Test |
| DOI: | 10.3929/ethz-b-000305915 |
| الإتاحة: | https://doi.org/20.500.11850/305915Test https://doi.org/10.3929/ethz-b-000305915Test https://doi.org/10.1093/mnras/sty1939Test https://hdl.handle.net/20.500.11850/305915Test |
| حقوق: | info:eu-repo/semantics/openAccess ; http://rightsstatements.org/page/InC-NC/1.0Test/ ; In Copyright - Non-Commercial Use Permitted |
| رقم الانضمام: | edsbas.4CC1ABAD |
| قاعدة البيانات: | BASE |
| DOI: | 10.3929/ethz-b-000305915 |
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