#cosmological parameters
5 papers · 1 filter
DESI DR2 Results IV: Alcock-Paczyński Measurements from the Lyman Alpha Forest and Cosmological Constraints
DESI Collaboration, A. G. Adame, J. Aguilar +164
The DESI DR2 analysis measures the Alcock‑Paczynski effect using the full shape of Lyman‑α forest auto‑ and cross‑correlations, achieving 1% precision at redshift 2.33 and providin…
Cosmology beyond standard sirens: cross-correlation of gravitational waves and neutral hydrogen intensity mapping
Matteo Schulz, Ulyana Dupletsa, Andrea Cozzumbo +8
The paper investigates using the cross‑correlation between gravitational‑wave events from detectors like the Einstein Telescope and neutral‑hydrogen intensity‑mapping surveys (SKAO…
No preference for generalized emergent dark energy from current cosmological data
Vipin Kumar Sharma, Himanshu Chaudhary, Salvatore Capozziello +2
The paper tests the generalized emergent dark energy (GEDE) model against recent BAO, CMB, and supernova data and finds it statistically indistinguishable from the standard ΛCDM mo…
Prospects for cosmological constraints using gravitational wave memory
Indranil Chakraborty, Susmita Jana, S. Shankaranarayanan
The paper proposes using the integrated gravitational‑wave memory signal from distant binary mergers as a new cosmological probe, showing that its amplitude is strongly sensitive t…
Prospect of Measuring the Cosmic Dipole by Associating Strongly Lensed Gravitational Waves with Galaxy Surveys
Anson Chen, Jun Zhang
The paper studies how strongly lensed gravitational‑wave events, combined with galaxy redshift data, can be used to measure the cosmic dipole and test its consistency with CMB and…