arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.10799physics.atom-phastro-ph.COphysics.chem-ph
收藏

双原子分子作为探针测量质子-电子质量比变化的计算研究

Computational insight into diatomic molecules as probes to measure the variation of the proton-to-electron mass ratio

Anna-Maree Syme, Laura K. McKemmish

摘要:

天体物理分子光谱学是通过探测质子与电子质量比$μ$的变化来寻找新物理的重要手段。新的分子探针可以更严格地限制$μ$的变化,为新物理理论提供更好的指导。在这里,我们总结了我们以前的论文\citep{19SyMoCu.CN}的天文学家,突出的重要性,准确估计峰值分子丰度和温度,以及光谱分辨率和灵敏度的望远镜在不同区域的电磁波谱。虽然我们研究的11个天体物理双原子分子中没有一个在天体物理环境的可观察强度下显示出增强的灵敏度,但我们对有助于高灵敏度的因素有了更好的了解。从我们的研究结果来看,CN,CP,SiN和SiC显示出所有天体物理双原子分子中最有希望进行进一步研究的分子,目前正在对CN进行进一步的工作。

英文摘要:

Astrophysical molecular spectroscopy is an important means of searching for new physics through probing the variation of the proton-to-electron mass ratio, $μ$. New molecular probes could provide tighter constraints on the variation of $μ$ and better direction for theories of new physics. Here we summarise our previous paper \citep{19SyMoCu.CN} for astronomers, highlighting the importance of accurate estimates of peak molecular abundance and temperature as well as spectral resolution and sensitivity of telescopes in different regions of the electromagnetic spectrum. Whilst none of the 11 astrophysical diatomic molecules we investigated showed enhanced sensitive rovibronic transitions at observable intensities for astrophysical environments, we have gained a better understanding of the factors that contribute to high sensitivities. From our results, CN, CP, SiN and SiC have shown the most promise of all astrophysical diatomic molecules for further investigation, with further work currently being done on CN.

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。

↑