Quantifying the statistics of CMB-lensing-derived galaxy cluster mass measurements with simulations
Quantifying the statistics of CMB-lensing-derived galaxy cluster mass measurements with simulations
复制标题
通过模拟量化 CMB 透镜衍生的星系团质量测量的统计数据
DOI:
10.1093/mnras/staa2302
复制
发表时间:
2020
影响因子:
4.8
通讯作者:
A. Challinor
中科院分区:
文献类型:
--
作者:
'Inigo Zubeldia;A. Challinor
CMB lensing is a promising, novel way to measure galaxy cluster masses that can be used, e.g., for mass calibration in galaxy cluster counts analyses. Understanding the statistics of the galaxy cluster mass observable obtained with such measurements is essential if their use in subsequent analyses is not to lead to biased results. We study the statistics of a CMB lensing galaxy cluster mass observable for a Planck-like experiment with mock observations obtained from an N-body simulation. We quantify the bias and intrinsic scatter associated with this observable following two different approaches, one in which the signal due to the cluster and nearby correlated large-scale structure is isolated, and another one in which the variation due to uncorrelated large-scale structure is also taken into account. For our first approach we also quantify deviations from log-normality in the scatter, finding them to have a negligible impact on mass calibration for our Planck-like experiment. We briefly discuss how some of our results change for experiments with higher angular resolution and lower noise levels, such as the current generation of surveys obtained with ground-based, large-aperture telescopes.
DOI:
10.2172/1352047
发表时间:
2016-10
期刊:
--
影响因子:
--
作者:
K. Abazajian;Peter Adshead;Z. Ahmed;S. Allen;D. Alonso;K. Arnold;C. Baccigalupi;J. Bartlett;
通讯作者:
K. Abazajian;Peter Adshead;Z. Ahmed;S. Allen;D. Alonso;K. Arnold;C. Baccigalupi;J. Bartlett;
DOI:
10.3847/0004-637x/832/1/95
发表时间:
2016
期刊:
The Astrophysical Journal
影响因子:
--
作者:
T. de Haan [SPT Collaboration]
通讯作者:
T. de Haan [SPT Collaboration]
影响因子:
4.8
作者:
Barnes D
通讯作者:
Barnes D