Lu Feng, 露 冯, Tao Han, 涛 韩, Jing-Fei Zhang, 敬飞 张, Xin Zhang and 鑫 张
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引用次数: 0
摘要
宇宙学观测可以用来权衡中微子,但这种方法依赖于模型,其结果取决于所考虑的宇宙学模型。如果我们考虑暗能量和暗物质之间的相互作用,中微子质量约束就会与标准模型下得出的结果不同。相反,引力波(GW)标准海妖观测可以测量绝对宇宙学距离,有助于打破传统宇宙学观测中固有的参数退行性,从而改善对中微子质量的约束。本文研究了相互作用暗能量(IDE)模型中对中微子质量的约束,并探讨了未来的引力波标准海妖观测如何能够增强这些结果。对于多信使 GW 观测,我们考虑了第三代地基 GW 探测器对双中子星合并的联合观测,以及类似于 THESEUS 卫星项目的任务对短γ射线暴的观测。利用当前的宇宙学观测(CMB+BAO+SN),我们得到了 IDE 模型中微中子质量的上限为 0.15(或 0.16)eV。加入全球大气观测数据后,中微子质量上限提高到了 0.14 eV。这表明,在 IDE 模型中,GW 观测对中微子质量约束的改善是相对有限的。然而,GW 观测大大增强了对其他宇宙学参数的约束,如物质密度参数、哈勃常数以及暗能量和暗物质之间的耦合强度。
Prospects for weighing neutrinos in interacting dark energy models using joint observations of gravitational waves and γ-ray bursts*
Cosmological observations can be used to weigh neutrinos, but this method is model-dependent, with results relying on the cosmological model considered. If we consider interactions between dark energy and dark matter, the neutrino mass constraints differ from those derived under the standard model. On the contrary, gravitational wave (GW) standard siren observations can measure absolute cosmological distances, helping to break parameter degeneracies inherent in traditional cosmological observations, thereby improving constraints on neutrino mass. This paper examines the constraints on neutrino mass within interacting dark energy (IDE) models and explores how future GW standard siren observations could enhance these results. For multi-messenger GW observations, we consider the joint observations of binary neutron star mergers by third-generation ground-based GW detectors and short γ-ray burst observations by missions similar to the THESEUS satellite project. Using current cosmological observations (CMB+BAO+SN), we obtain an upper limit on the neutrino mass in the IDE models of 0.15 (or 0.16) eV. With the inclusion of GW data, the upper limit on the neutrino mass improves to 0.14 eV. This indicates that in the context of IDE models, the improvement in neutrino mass constraints from GW observations is relatively limited. However, GW observations significantly enhance the constraints on other cosmological parameters, such as matter density parameter, the Hubble constant, and coupling strength between dark energy and dark matter.
期刊介绍:
Chinese Physics C covers the latest developments and achievements in the theory, experiment and applications of:
Particle physics;
Nuclear physics;
Particle and nuclear astrophysics;
Cosmology;
Accelerator physics.
The journal publishes original research papers, letters and reviews. The Letters section covers short reports on the latest important scientific results, published as quickly as possible. Such breakthrough research articles are a high priority for publication.
The Editorial Board is composed of about fifty distinguished physicists, who are responsible for the review of submitted papers and who ensure the scientific quality of the journal.
The journal has been awarded the Chinese Academy of Sciences ‘Excellent Journal’ award multiple times, and is recognized as one of China''s top one hundred key scientific periodicals by the General Administration of News and Publications.