Testing the cosmic curvature at high redshifts: the combination of LSST strong lensing systems and quasars as new standard candles,Monthly Notices of the Royal Astronomical Society

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Testing the cosmic curvature at high redshifts: the combination of LSST strong lensing systems and quasars as new standard candles
Monthly Notices of the Royal Astronomical Society ( IF 4.7 ) Pub Date : 2020-06-03 , DOI: 10.1093/mnras/staa1539
Tonghua Liu ₁ , Shuo Cao ₁ , Jia Zhang ₂ , Marek Biesiada _{1,

3} , Yuting Liu ₁ , Yujie Lian ₁

Affiliation

The cosmic curvature, a fundamental parameter for cosmology could hold deep clues to inflation and cosmic origins. We propose an improved model-independent method to constrain the cosmic curvature by combining the constructed Hubble diagram of high-redshift quasars with galactic-scale strong lensing systems expected to be seen by the forthcoming LSST survey. More specifically, the most recent quasar data are used as a new type of standard candles in the range $0.036

中文翻译：

在高红移下测试宇宙曲率：LSST 强透镜系统和类星体的组合作为新的标准烛光

宇宙曲率是宇宙学的一个基本参数，可以为暴胀和宇宙起源提供深刻的线索。我们提出了一种改进的独立于模型的方法，通过将构建的高红移类星体的哈勃图与即将到来的 LSST 巡天观测到的银河尺度强透镜系统相结合，来约束宇宙曲率。更具体地说，最新的类星体数据被用作 0.036 美元范围内的新型标准蜡烛

更新日期：2020-06-03

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