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Jul, 2023
来自光度DESI亮红星系的大尺度聚类的本地原始非高斯性
Local primordial non-Gaussianity from the large-scale clustering of photometric DESI luminous red galaxies
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Mehdi Rezaie, Ashley J. Ross, Hee-Jong Seo, Hui Kong, Anna Porredon...
TL;DR
使用DESI个人计划中红巨星星系的角聚类方法,探讨局部原初非高斯性参数fNL;结果表明fNL>0且具有99.9%的置信水平,呼吁进一步研究带有3D聚类的DESI光谱样品以确保提取成像系统漂移。
Abstract
We use
angular clustering
of
luminous red galaxies
from the Dark Energy Spectroscopic Instrument (
desi
) imaging surveys to constrain the l
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