تقرير
Dark Energy Survey Year 1 Clusters are Consistent with Planck
| العنوان: | Dark Energy Survey Year 1 Clusters are Consistent with Planck |
|---|---|
| المؤلفون: | Salcedo, Andrés N., Wu, Hao-Yi, Rozo, Eduardo, Weinberg, David H., To, Chun-Hao, Sunayama, Tomomi, Lee, Andy |
| سنة النشر: | 2023 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - Cosmology and Nongalactic Astrophysics |
| الوصف: | The recent Dark Energy Survey Year 1 (DES-Y1) analysis of galaxy cluster abundances and weak lensing produced $\Omega_{\rm m}$ and $\sigma_8$ constraints in 5.6$\sigma$ tension with Planck. It is suggested in that work that this tension is driven by unmodelled systematics in optical cluster selection. We present a novel simulation-based forward modeling framework that explicitly incorporates cluster selection into its model predictions. Applying this framework to the DES-Y1 data we find consistency with Planck, resolving the tension found in the DES-Y1 analysis. An extension of this approach to the final DES data set will produce robust constraints on $\Lambda$CDM parameters and correspondingly strong tests of cosmological models. Comment: 6 pages, 2 figures, 1 table, Supplemental material with 2 figures. Submitted to Physical Review Letters |
| نوع الوثيقة: | Working Paper |
| الوصول الحر: | http://arxiv.org/abs/2310.03944Test |
| رقم الانضمام: | edsarx.2310.03944 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |