activity
20002026
most citedBeyond CDM: Problems, solutions, and the road ahead

530 citations · 1.7k across the 43 of their papers we have counts for

collaborators

44 papers

astro-ph.CO2026★ 4 cited

Physically-motivated priors in the local distance ladder significantly reduce the Hubble tension

Marcus Högås, Edvard Mörtsell

Determinations of the Hubble constant based on the local distance ladder remain in significant tension with early-Universe inferences from the cosmic microwave background. While th…

astro-ph.CO2025

Constraining Fifth Forces using the Local Distance Ladder: Implications for the Hubble Tension

Marcus Högås, Edvard Mörtsell, Harry Desmond +1

We revisit the local distance ladder measurement of the Hubble constant in models where gravity is modified by a fifth force, an additional long-range interaction. In many such the…

astro-ph.CO2024

Reassessing the Cepheid-based distance ladder: implications for the Hubble constant

Marcus Högås, Edvard Mörtsell

The Hubble constant () is a key parameter in cosmology, yet its precise value remains contentious due to discrepancies between early- and late-universe measurement methods, a…

astro-ph.HE2024★ 2 cited

Candidate strongly lensed type Ia supernovae in the Zwicky Transient Facility archive

A. Townsend, J. Nordin, A. Sagués Carracedo +61

Gravitationally lensed type Ia supernovae (glSNe Ia) are unique astronomical tools that can be used to study cosmological parameters, distributions of dark matter, the astrophysics…

astro-ph.CO2023

The Hubble tension and fifth forces: a cosmic screenplay

Marcus Högås, Edvard Mörtsell

Fifth forces are ubiquitous in modified theories of gravity. In this paper, we analyze their effect on the Cepheid-calibrated cosmic distance ladder, specifically with respect to t…

astro-ph.CO2021★ 17 cited

Microlensing and the type Ia supernova iPTF16geu

J. M. Diego, G. Bernstein, W. Chen +5

The observed magnifications and light curves of the quadruply-imaged iPTF16geu supernova (SN) offers a unique opportunity to study a lens system with a variety of independent const…