4 papers
Probing potential redshift-dependent systematics in the Hubble tension: Model-independent constraints from DESI R2
Tonghua Liu, Shuo Cao, Jieci Wang
We present a determination of the Hubble constant () using the latest observational data from multiple cosmological probes, providing an independent geometric calibration of t…
New tests of cosmic distance duality relation with DESI 2024 BAO observations
Qiumin Wang, Shuo Cao, Jianyong Jiang +5
In this paper, we test the cosmic distance duality relation (CDDR), as required by the Etherington reciprocity theorem, which connects the angular diameter distance and the luminos…
Thirty-five years of timing of M53A with Arecibo and FAST
Yujie Lian, P. C. C. Freire, Shuo Cao +6
PSR B1310+18A is a 33-ms binary pulsar in a 256-day, low eccentricity orbit with a low-mass companion located in NGC 5024 (M53). In this Letter, we present the first phase-coherent…
Determination of cosmic curvature independent of the sound horizon and using BOSS/eBOSS and DESI DR1 BAO observations
Tonghua Liu, Shengjia Wang, Hengyu Wu +1
We present an improved model-independent method for determining the cosmic curvature using the observations of Baryon Acoustic Oscillations (BAOs) and the Hubble parameter. The pur…