Probing proton-to-electron mass ratio variability with QSO 0347–383 spectra

IF 10.2 4区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS

Journal of High Energy Astrophysics Pub Date : 2024-09-06 DOI:10.1016/j.jheap.2024.08.005

T.D. Le

引用次数: 0

Abstract

We introduce a new approach for detecting potential cosmological changes in the proton-to-electron mass ratio (µ) by studying the absorption lines of molecular hydrogen (H2) in the high-redshift quasar QSO 0347–383. By comparing these observations with high-precision laboratory data, we determine a variation of ∆µ/µ = (0.120 ± 0.144) × 10⁻⁸ at z_abs = 3.025. This highly precise result offers valuable insights into the constancy of fundamental physical constants over extended cosmic periods.

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利用 QSO 0347-383 光谱探测质子与电子质量比的变异性

我们通过研究高红移类星体 QSO 0347-383 中分子氢（H2）的吸收线，提出了一种探测质子-电子质量比（µ）潜在宇宙学变化的新方法。通过将这些观测数据与高精度实验室数据进行比较，我们确定了在zabs = 3.025时∆µ/µ = (0.120 ± 0.144) × 10-8的变化。这一高度精确的结果为我们深入了解基本物理常数在漫长宇宙时期的恒定性提供了宝贵的启示。

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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来源期刊

Journal of High Energy Astrophysics Earth and Planetary Sciences-Space and Planetary Science

CiteScore

9.70

自引率

5.30%

发文量

审稿时长

65 days

期刊介绍： The journal welcomes manuscripts on theoretical models, simulations, and observations of highly energetic astrophysical objects both in our Galaxy and beyond. Among those, black holes at all scales, neutron stars, pulsars and their nebula, binaries, novae and supernovae, their remnants, active galaxies, and clusters are just a few examples. The journal will consider research across the whole electromagnetic spectrum, as well as research using various messengers, such as gravitational waves or neutrinos. Effects of high-energy phenomena on cosmology and star-formation, results from dedicated surveys expanding the knowledge of extreme environments, and astrophysical implications of dark matter are also welcomed topics.