Towards the First HSC-SSP Cluster Cosmology Results: Focus on Robustness against Projection Effects

迈向第一个 HSC-SSP 星团宇宙学结果：关注投影效应的鲁棒性

• 批准号: 21K13917
• 负责人: PARK YOUNGSOO
• 金额: $ 2.66万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Early-Career Scientists
• 财政年份: 2021
• 资助国家: 日本
• 起止时间: 2021-04-01 至 2023-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-21K13917/
• 关键词: Cosmology; galaxy clusters; weak lensing; large scale structure; Galaxy Clusters; Weak Lensing; Large Scale Structure

In FY2022 (May 2022 to September 2022), I have carried out follow-up research related to the results obtained inFY2021. Specifically, my collaborators and I have obtained a new cluster lensing measurement from the HSC-SSPfirst-year data. I have then performed preliminary comparisons between the FY2021 results, using SDSS shapemeasurements, and new results using the HSC-SSP shape measurements. Preliminary results suggest that thepuzzles from FY2021 may be solved with the new cluster lensing measurements, and further studies and analysesare ongoing today.I have also refactored the codebase for the cluster cosmology analysis pipeline and have shared it with mycollaborators as a private github repository. This refactoring has made it easy for current and future researchersinterested in contributing to quickly learn and become able to perform the analysis, in particular the running of MarkovChain Monte Carlo simulations for likelihood analyses.Both of the above achievements will allow the impact of this grant to last long after its end.

在2022财年（2022年5月至2022年9月）中，我进行了与获得INFY2021的结果有关的随访研究。具体来说，我和我的合作者从HSC-SSPFIRTAD数据中获得了新的集群镜头测量。然后，我使用SDSS ShapeMeasurions和使用HSC-SSP形状测量值进行了FY2021结果之间的初步比较。初步结果表明，来自FY2021的Pusuzzles可以通过新的群集镜头测量来解决，并且今天正在进行的进一步研究和分析。我还对群集宇宙学分析管道的代码库进行了重构，并已将其与mycollaborators共享为私人Github Repository。这种重构使当前和未来的研究人员都很容易受到促进，以促进快速学习并能够进行分析，特别是Markovchain Monte Carlo模拟了可能的可能性分析。以上成就的两项成就都将使这笔赠款的影响能够在其结束后持续很长时间。