Cosmology from cosmic shear with Dark Energy Survey Science Verification data
| العنوان: | Cosmology from cosmic shear with Dark Energy Survey Science Verification data |
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| المؤلفون: | Abbott, T., Abdalla, F. B., Allam, S., Amara, A., Annis, J., Armstrong, R., Bacon, D., Banerji, M., Bauer, A. H., Baxter, E., Becker, M. R., Benoit-Lévy, A., Bernstein, R. A., Bernstein, G. M., Bertin, E., Blazek, J., Bonnett, C., Bridle, S. L., Brooks, D., Bruderer, C., Buckley-Geer, E., Burke, D. L., Busha, M. T., Capozzi, D., Carnero Rosell, A., Carrasco Kind, M., Carretero, J., Castander, F. J., Chang, C., Clampitt, J., Crocce, M., Cunha, C. E., D'Andrea, C. B., da Costa, L. N., Das, R., DePoy, D. L., Desai, S., Diehl, H. T., Dietrich, J. P., Dodelson, S., Doel, P., Drlica-Wagner, A., Efstathiou, G., Eifler, T. F., Erickson, B., Estrada, J., Evrard, A. E., Fausti Neto, A., Fernandez, E., Finley, D. A., Flaugher, B., Fosalba, P., Friedrich, O., Frieman, J., Gangkofner, C., Garcia-Bellido, J., Gaztanaga, E., Gerdes, D. W., Gruen, D., Gruendl, R. A., Gutierrez, G., Hartley, W., Hirsch, M., Honscheid, K., Huff, E. M., Jain, B., James, D. J., Jarvis, M., Kacprzak, T., Kent, S., Kirk, D., Krause, E., Kravtsov, A., Kuehn, K., Kuropatkin, N., Kwan, J., Lahav, O., Leistedt, B., Li, T. S., Lima, M., Lin, H., MacCrann, N., March, M., Marshall, J. L., Martini, P., McMahon, R. G., Melchior, P., Miller, C. J., Miquel, R., Mohr, J. J., Neilsen, E., Nichol, R. C., Nicola, A., Nord, B., Ogando, R., Palmese, A., Peiris, H. V., Plazas, A. A., Refregier, A., Roe, N., Romer, A. K., Roodman, A., Rowe, B., Rykoff, E. S., Sabiu, C., Sadeh, I., Sako, M., Samuroff, S., Sanchez, E., Sánchez, C., Seo, H., Sevilla-Noarbe, I., Sheldon, E., Smith, R. C., Soares-Santos, M., Sobreira, F., Suchyta, E., Swanson, M. E. C., Tarle, G., Thaler, J., Thomas, D., Troxel, M. A., Vikram, V., Walker, A. R., Wechsler, R. H., Weller, J., Zhang, Y., Zuntz, J., Dark Energy Survey Collaboration, [Unknown] |
| المصدر: | Abbott, T, Abdalla, F B, Allam, S, Amara, A, Annis, J, Armstrong, R, Bacon, D, Banerji, M, Bauer, A H, Baxter, E, Becker, M R, Benoit-Lévy, A, Bernstein, R A, Bernstein, G M, Bertin, E, Blazek, J, Bonnett, C, Bridle, S L, Brooks, D, Bruderer, C, Buckley-Geer, E, Burke, D L, Busha, M T, Capozzi, D, Rosell, A C, Kind, M C, Carretero, J, Castander, F J, Chang, C, Clampitt, J, Crocce, M, Cunha, C E, D'Andrea, C B, Costa, L N D, Das, R, DePoy, D L, Desai, S, Diehl, H T, Dietrich, J P, Dodelson, S, Doel, P, Drlica-Wagner, A, Efstathiou, G, Eifler, T F, Erickson, B, Estrada, J, Evrard, A E, Neto, A F, Nichol, R C, Thomas, D & Dark Energy Survey Collaboration 2016, ' Cosmology from cosmic shear with Dark Energy Survey Science Verification Data ', Physical Review D, vol. 94, no. 2, 022001 . https://doi.org/10.1103/PhysRevD.94.022001Test Abbott, T, Abdalla, F B, Allam, S, Amara, A, Annis, J, Armstrong, R, Bacon, D, Banerji, M, Bauer, A H, Baxter, E, Becker, M R, Benoit-Lévy, A, Bernstein, R A, Bernstein, G M, Bertin, E, Blazek, J, Bonnett, C, Bridle, S L, Brooks, D, Bruderer, C, Buckley-Geer, E, Burke, D L, Busha, M T, Capozzi, D, Carnero Rosell, A, Carrasco Kind, M, Carretero, J, Castander, F J, Chang, C, Clampitt, J, Crocce, M, Cunha, C E, D'Andrea, C B, da Costa, L N, Das, R, DePoy, D L, Desai, S, Diehl, H T, Dietrich, J P, Dodelson, S, Doel, P, Drlica-Wagner, A, Efstathiou, G, Eifler, T F, Erickson, B, Estrada, J, Evrard, A E, Fausti Neto, A, Fernandez, E, Finley, D A, Flaugher, B, Fosalba, P, Friedrich, O, Frieman, J, Gangkofner, C, Garcia-Bellido, J, Gaztanaga, E, Gerdes, D W, Gruen, D, Gruendl, R A, Gutierrez, G, Hartley, W, Hirsch, M, Honscheid, K, Huff, E M, Jain, B, James, D J, Jarvis, M, Kacprzak, T, Kent, S, Kirk, D, Krause, E, Kravtsov, A, Kuehn, K, Kuropatkin, N, Kwan, J, Lahav, O, Leistedt, B, Li, T S, Lima, M, Lin, H, MacCrann, N, March, M, Marshall, J L, Martini, P, McMahon, R G, Melchior, P, Miller, C J, Miquel, R, Mohr, J J, Neilsen, E, Nichol, R C, Nicola, A, Nord, B, Ogando, R, Palmese, A, Peiris, H V, Plazas, A A, Refregier, A, Roe, N, Romer, A K, Roodman, A, Rowe, B, Rykoff, E S, Sabiu, C, Sadeh, I, Sako, M, Samuroff, S, Sanchez, E, Sánchez, C, Seo, H, Sevilla-Noarbe, I, Sheldon, E, Smith, R C, Soares-Santos, M, Sobreira, F, Suchyta, E, Swanson, M E C, Tarle, G, Thaler, J, Thomas, D, Troxel, M A, Vikram, V, Walker, A R, Wechsler, R H, Weller, J, Zhang, Y, Zuntz, J & Dark Energy Survey Collaboration, U 2016, ' Cosmology from cosmic shear with Dark Energy Survey Science Verification data ', Physical Review D, Particles and fields, vol. 94, no. 2, pp. 22001 . https://doi.org/10.1103/PhysRevD.94.022001Test |
| بيانات النشر: | American Physical Society (APS), 2016. |
| سنة النشر: | 2016 |
| مصطلحات موضوعية: | Cosmology and Gravitation, PARAMETER CONSTRAINTS, Dark matter, Cosmic microwave background, WEAK-LENSING TOMOGRAPHY, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Astronomy & Astrophysics, GALAXY ELLIPTICITIES, 01 natural sciences, Cosmology, Physics, Particles & Fields, symbols.namesake, PRECISION COSMOLOGY, MATTER POWER SPECTRUM, LARGE-SCALE STRUCTURE, 0103 physical sciences, Planck, 010303 astronomy & astrophysics, STFC, Weak gravitational lensing, QB, Photometric redshift, Physics, Science & Technology, 010308 nuclear & particles physics, RCUK, Astronomy, INTRINSIC ALIGNMENTS, Redshift, Physical Sciences, astro-ph.CO, Dark energy, symbols, COVARIANCE-MATRIX, BARYON ACOUSTIC-OSCILLATIONS, HUBBLE CONSTANT |
| الوصف: | We present the first constraints on cosmology from the Dark Energy Survey (DES), using weak lensing measurements from the preliminary Science Verification (SV) data. We use 139 square degrees of SV data, which is less than 3% of the full DES survey area. Using cosmic shear 2-point measurements over three redshift bins we find σ8(Ωm/0.3)0.5=0.81±0.06 (68% confidence), after marginalizing over 7 systematics parameters and 3 other cosmological parameters. We examine the robustness of our results to the choice of data vector and systematics assumed, and find them to be stable. About 20% of our error bar comes from marginalizing over shear and photometric redshift calibration uncertainties. The current state-of-the-art cosmic shear measurements from CFHTLenS are mildly discrepant with the cosmological constraints from Planck CMB data; our results are consistent with both data sets. Our uncertainties are ∼30% larger than those from CFHTLenS when we carry out a comparable analysis of the two data sets, which we attribute largely to the lower number density of our shear catalogue. We investigate constraints on dark energy and find that, with this small fraction of the full survey, the DES SV constraints make negligible impact on the Planck constraints. The moderate disagreement between the CFHTLenS and Planck values of σ8(Ωm/0.3)0.5 is present regardless of the value of ω. |
| وصف الملف: | application/pdf |
| تدمد: | 2470-0029 2470-0010 1550-7998 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9eaca70b66ac0ff2ea4dc3f49d8fb321Test https://doi.org/10.1103/physrevd.94.022001Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....9eaca70b66ac0ff2ea4dc3f49d8fb321 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 24700029 24700010 15507998 |
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