دورية أكاديمية
Dark Energy Survey Year 1 results: Measurement of the baryon acoustic oscillation scale in the distribution of galaxies to redshift 1 ...
| العنوان: | Dark Energy Survey Year 1 results: Measurement of the baryon acoustic oscillation scale in the distribution of galaxies to redshift 1 ... |
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| المؤلفون: | Abbott, TMC, Abdalla, FB, Alarcon, A, Allam, S, Andrade-Oliveira, F, Annis, J, Avila, S, Banerji, M, Banik, N, Bechtol, K, Bernstein, RA, Bernstein, GM, Bertin, E, Brooks, D, Buckley-Geer, E, Burke, DL, Camacho, H, Carnero Rosell, A, Carrasco Kind, M, Carretero, J, Castander, FJ, Cawthon, R, Chan, KC, Crocce, M, Cunha, CE, D'Andrea, CB, Da Costa, LN, Davis, C, De Vicente, J, Depoy, DL, Desai, S, Diehl, HT, Doel, P, Drlica-Wagner, A, Eifler, TF, Elvin-Poole, J, Estrada, J, Evrard, AE, Flaugher, B, Fosalba, P, Frieman, J, García-Bellido, J, Gaztanaga, E, Gerdes, DW, Giannantonio, T, Gruen, D, Gruendl, RA, Gschwend, J, Gutierrez, G, Hartley, WG |
| بيانات النشر: | Oxford University Press |
| سنة النشر: | 2019 |
| المجموعة: | DataCite Metadata Store (German National Library of Science and Technology) |
| مصطلحات موضوعية: | cosmology observations, large-scale structure of Universe |
| الوصف: | We present angular diameter distance measurements obtained by locating the baryon acoustic oscillations (BAO) scale in the distribution of galaxies selected from the first year of Dark Energy Survey data. We consider a sample of over 1.3 million galaxies distributed over a footprint of 1336 deg 2 witH 0 .6 < z photo < 1 and a typical redshift uncertainty of 0.03(1 + z). This sample was selected, as fully described in a companion paper, using a colour/magnitude selection that optimizes trade-offs between number density and redshift uncertainty. We investigate the BAO signal in the projected clustering using three conventions, the angular separation, the comoving transverse separation, and spherical harmonics. Further, we compare results obtained from template-based and machine-learning photometric redshift determinations. We use 1800 simulations that approximate our sample in order to produce covariance matrices and allow us to validate our distance scale measurement methodology. We measure the angular ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.17863/cam.20891 |
| الإتاحة: | https://doi.org/10.17863/cam.20891Test https://www.repository.cam.ac.uk/handle/1810/293847Test |
| رقم الانضمام: | edsbas.C525597C |
| قاعدة البيانات: | BASE |
| DOI: | 10.17863/cam.20891 |
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