activity
20242026
most citedCosmic microwave background constraints on extended dark matter objects

7 citations · 7 across the 5 of their papers we have counts for

collaborators

5 papers

astro-ph.CO2026

Supernova microlensing as a probe of ultracompact minihalos and primordial cosmology

Djuna Croon, Sergio Sevillano Muñoz, Miguel Zumalacarregui

We propose using supernova microlensing to search for ultracompact minihalos and other extended dark structures seeded by enhanced primordial small-scale power. Unlike conventional…

astro-ph.CO2026

Unified dark sector approaches to cosmological tensions

Sergio Sevillano Muñoz, Mark Trodden

We present an analytical study of minimal mass-varying dark matter models, in which a single scalar field controls the dark matter mass, focusing on their utility in simultaneously…

astro-ph.CO2026

The Revised Evolutionary Volume Tolman Test: Cosmological Constraints from Galaxy Evolution

Christopher J. Conselice, Edmund J. Copeland, Sergio Sevillano Muñoz

In this study we adapt a classical cosmology measurement, the volume or number density test, to a modern synthesis of observed galaxy evolution. We do this by using measured galaxy…

hep-ph2025

Neutrino Constraints on Scalar-Tensor Gravity

Arturo de Giorgi, Ivan Martinez Soler, Sergio Sevillano Muñoz

In this work, we derive novel constraints on scalar-tensor theories from neutrino physics. Spatial variations of the background scalar field effectively generate density and positi…

astro-ph.CO2024★ 7 cited

Cosmic microwave background constraints on extended dark matter objects

Djuna Croon, Sergio Sevillano Muñoz

Primordially formed extended dark objects would accrete baryonic matter and impact the ionisation history of the Universe. Insisting on consistency with the anisotropies of the cos…