A number of challenges to the standard Λ CDM model have been emerging during the past few years as the accuracy of cosmological observations improves. In this review we discuss …
The Hubble tension has now grown to a level of significance which can no longer be ignored and calls for a solution which, despite a huge number of attempts, has so far eluded …
The Λ CDM model provides a good fit to most astronomical observations but harbors large areas of phenomenology and ignorance. With the improvements in the precision and …
New physics increasing the expansion rate just prior to recombination is among the least unlikely solutions to the Hubble tension and would be expected to leave an important …
BH Lee, W Lee, EÓ Colgáin… - … of Cosmology and …, 2022 - iopscience.iop.org
Local H_0 determinations currently fall in a window between H 0∼ 70 km/s/Mpc (TRGB) and H 0∼ 76 km/s/Mpc (Tully-Fisher). In contrast, BAO data calibrated in an early ΛCDM …
The current discrepancy between the Hubble constant, H 0, derived from the local distance ladder and from the cosmic microwave background is one of the most crucial issues in …
A 10% difference in the scale for the Hubble parameter constitutes a clear problem for cosmology. Here, considering angular distribution of type Ia supernovae (SN) within the …
We use the ages of old astrophysical objects (OAO) in the redshift range 0≲ z≲ 8 as stringent tests of the late-time cosmic expansion history. Since the age of the Universe at any …
We explore the prospects for direct detection of dark energy by current and upcoming terrestrial dark matter direct detection experiments. If dark energy is driven by a new light …