论文标题

不用担心,哈勃的张力得到缓解:真正直接测量了月亮狂的扩张中哈勃常数

Worry No More, The Hubble Tension is Relieved: A Truly Direct Measurement of the Hubble Constant from Mooniversal Expansion

论文作者

Anand, Gagandeep S., Claytor, Zachary R., Dungee, Ryan

论文摘要

使用基于沉积和日食的测量,我们从地球月亮的衰退率中得出了对哈勃常数($ h_0 $)的新局部宇宙测量。考虑到潮汐的影响,我们发现$ h_ {0} $ = 63.01 $ \ pm $ 1.79 km s $^{ - 1} $ mpc $^{ - 1} $与Planck Space Mission使用Cosmic MicroWave Backendback(CMB)和基础$ CDM符合Planck Space Mission的测量。我们的新测量代表了宇宙当前扩展率的第一个独立于模型的单步测量。这也是第一个主要的本地宇宙测量$ H_0 $,低于普朗克的测量。重要的是,使用其他宇宙学探针(例如IA型超新星,巴里昂声学振荡或透明的类星体)中可能存在的系统误差对可能存在的系统错误是可靠的。我们的工作为现有哈勃张力确实可能是当地距离阶梯中系统不确定性的结果提供了关键的证据。

Using sedimentary and eclipse-based measurements of the lunar recession velocity, we derive a new local-Universe measurement of the Hubble constant ($H_0$) from the recession rate of Earth's Moon. Taking into account the effects of tides, we find a value of $H_{0}$ = 63.01 $\pm$ 1.79 km s$^{-1}$ Mpc$^{-1}$, which is in approximate agreement with the Planck space mission's measurement using the cosmic microwave background (CMB) and base $Λ$CDM. Our new measurement represents the first ever model-independent, single-step measurement of the Universe's current expansion rate. This is also the first major local Universe measurement of $H_0$ which is below the measurement from Planck. Importantly, it is robust to the systematic errors that may be present in other $H_0$ measurements using other cosmological probes such as type Ia supernovae, baryon acoustic oscillations, or lensed quasars. Our work provides key evidence towards the notion that the existing Hubble tension may indeed be a result of systematic uncertainties in the local distance ladder.

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