从万神殿+的宇宙学分析中得出的局部下降

IF 5.3 2区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS

Journal of Cosmology and Astroparticle Physics Pub Date : 2024-12-03 DOI:10.1088/1475-7516/2024/12/003

Francesco Sorrenti, Ruth Durrer and Martin Kunz

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引用次数: 0

摘要

我们对Pantheon+超新星样本进行了模型独立分析，并研究了H0， q0和j0的恢复值与红移切割和特殊速度建模的关系。除了前面讨论的体速度外，我们还发现了一个显著的下降，我们将其归因于半径为R≃120h-1Mpc的过密度的存在。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A local infall from a cosmographic analysis of Pantheon+

We present a model independent analysis of the Pantheon+ supernova sample and study the dependence of the recovered values of H0, q0 and j0 on the redshift cut and on the modeling of peculiar velocities. In addition to the bulk velocity discussed previously, we also find a significant infall that we attribute to the presence of an overdensity out to a radius of R ≃ 120h-1Mpc.

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来源期刊

Journal of Cosmology and Astroparticle Physics 地学天文-天文与天体物理

CiteScore

10.20

自引率

23.40%

发文量

632

审稿时长

1 months

期刊介绍： Journal of Cosmology and Astroparticle Physics (JCAP) encompasses theoretical, observational and experimental areas as well as computation and simulation. The journal covers the latest developments in the theory of all fundamental interactions and their cosmological implications (e.g. M-theory and cosmology, brane cosmology). JCAP''s coverage also includes topics such as formation, dynamics and clustering of galaxies, pre-galactic star formation, x-ray astronomy, radio astronomy, gravitational lensing, active galactic nuclei, intergalactic and interstellar matter.