arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2607.04460astro-ph.COgr-qc
收藏

相互作用暗能量模型的强引力透镜约束

Strong gravitational lensing constraints on interacting dark energy models

Facultad de Ingeniería y Arquitectura, Universidad Central de Chile(智利中央大学工程与建筑学院);Instituto de Astronomía, Observatorio Astronómico Nacional, Universidad Nacional Autónoma de México(墨西哥国立自治大学国家天文台天体物理研究所)

F. Villalobos, T. Verdugo, P. Troncoso-Iribarren, N. Piña, J. Magaña

AI总结:

研究暗物质与暗能量相互作用,用强引力透镜数据估计宇宙学参数,结果支持加速宇宙,表明暗区相互作用或可缓解宇宙膨胀历史紧张关系及强引力透镜的潜力。

摘要:

暗物质与暗能量之间可能的相互作用被提出作为缓解巧合问题和哈勃张力的一种机制。强引力透镜观测为测试宇宙暗成分的性质提供了有价值的约束。我们给出了一个与暗物质密度成正比且依赖于减速参数q的相互作用模型Q的强透镜数据的宇宙学参数估计。得到的结果与加速宇宙一致。此外,这些结果与之前的研究一致,表明暗区的相互作用可能有助于缓解宇宙膨胀历史中现有的紧张关系,并突出了强引力透镜作为一种独立宇宙学探针的潜力。

英文摘要:

The possible interaction between dark matter and dark energy has been proposed as a mechanism to alleviate the coincidence problem and the Hubble tension. Strong gravitational lensing observations provide valuable constraints to test the properties of the dark components of the Universe. We present estimates of cosmological parameters employing strong lensing data for an interaction model Q, proportional to the dark matter density and dependent on the deceleration parameter q. The obtained results are consistent with an accelerating Universe. Furthermore, these results agree with previous studies suggesting that an interaction in the dark sector may help alleviate existing tensions in the expansion history of the Universe and highlight the potential of strong gravitational lensing as an independent cosmological probe.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑