Cosmological-model-independent tests of cosmic distance duality relation with Type Ia supernovae and radio quasars

Model-independent Test for the Cosmic Distance–Duality Relation with Pantheon and eBOSS DR16 Quasar Sample

“…Finally, it is worth comparing our results with some tests that have been already studied by using other high-redshift astrophysical probes to obtain ADD previously. In particular, many efforts have been made to perform robust tests of CDDR by combining the ADDs derived from ultracompact structures in radio quasars (Cao et al 2018) with the LDs obtained from the Pantheon SNIa sample (He et al 2022), the relation between the UV and X-ray luminosities of quasars (Zheng et al 2020), observations of H II galaxies (Liu et al 2021), and simulated gravitational wave data (Qi et al 2019a), respectively. In these works, the authors tested CDDR in the redshift range z > 2, and found that the validity of CDDR was in good agreement with the current observational data.…”

“…Thus, the parameter of the CDDR can also be constrained by the parameterization function of optical depth τ(z) rather than η(z) with their relation being η(z) = e τ( z)/2 (Lima et al 2011). And many works have been made to perform the constraints on the cosmic opacity by using various astronomical observations, and the results show that there is no obvious evidence of an opaque universe (More et al 2009;Chen et al 2012;Nair et al 2012;Holanda et al 2013;Liao et al 2013Liao et al , 2015Wang et al 2017;Qi et al 2019b;Ma et al 2019;Wei 2019;Fu et al 2020;Geng et al 2020;Liu et al 2020;Xu et al 2021;He et al 2022). However, it is worth mentioning that combining the simulated gravitation waves from the DECi-hertz Interferometer Gravitational-wave Observatory and the Einstein Telescope (ET) with the observations of SNIa, H II galaxies, and monochromatic X-ray and ultraviolet (UV) luminosity of quasars, the authors in the references (Geng et al 2020;Liu et al 2020) have tested the cosmic opacity out to high redshifts and found that the constraint results are slightly sensitive to the parameterization of τ(z).…”

Prospects of Searching for Type Ia Supernovae with 2.5-m Wide Field Survey Telescope

“…The latest value of H 0 (73.04 ± 1.04 km s −1 Mpc −1 ) [67-72] measured from local SNe Ia, calibrated by the Cepheid distance ladder, is in 5σ tension with the predicted H 0 from the cosmic microwave background observations [73][74][75]. For those SNe Ia at high redshifts, they can be applied to constrain the property of dark energy [10], test the cosmic distance duality relation [76][77][78], constrain cosmic opacity [79], estimate the time variation of Newton's constant G [80], and so on. The WFST could discover many well-observed SNe Ia with redshifts above 0.5, providing a vital opportunity for cosmologi-cal applications.…”