242 citations · 1.7k across the 22 of their papers we have counts for
23 papers
Cosmological Inference with Gravitational-Wave Dark Sirens and 21-cm Intensity Mapping: Forecasts for LIGO-Virgo-KAGRA with MeerKAT and SKAO
Dounia Nanadoumgar-Lacroze, Konstantin Leyde, Steven Cunnington +8
Gravitational waves (GWs) and 21-cm intensity mapping (IM) are emerging as complementary cosmological probes: GWs provide direct luminosity-distance measurements, while neutral-hyd…
Cosmology beyond standard sirens: cross-correlation of gravitational waves and neutral hydrogen intensity mapping
Matteo Schulz, Ulyana Dupletsa, Andrea Cozzumbo +8
We explore the potential of cross-correlation between gravitational wave (GW) events and neutral hydrogen (HI) intensity mapping surveys to serve as an independent cosmological pro…
Cosmology from Synergies Between SKAO Surveys and Gravitational Wave Observations
Tessa Baker, Alberto Colombo, Steven Cunnington +11
Both radio surveys and gravitational wave observations have the potential to probe unprecedented volumes in the Universe with systematics independent of existing cosmological probe…
Radio sirens: inferring with binary black holes and neutral hydrogen in the era of the Einstein Telescope and the SKA Observatory
Ulyana Dupletsa, Simone Mastrogiovanni, Marta Spinelli +11
A new synergy between gravitational waves (GWs) and the study of the large-scale structure of the Universe is now emerging. Along this line of research, we combine simulated observ…
One likelihood to bind them all: Lyman- constraints on non-standard dark matter
Deanna C. Hooper, Nils Schöneberg, Riccardo Murgia +3
Recent cosmological tensions have rekindled the search for models beyond CDM that cause a suppression of the matter power spectrum. Due to the small scales accessible to Lyman-$…
Hints of Early Dark Energy in Planck, SPT, and ACT data: new physics or systematics?
Tristan L. Smith, Matteo Lucca, Vivian Poulin +5
We investigate constraints on early dark energy (EDE) using ACT DR4, SPT-3G 2018, Planck polarization, and restricted Planck temperature data (at ), finding a pref…
Pseudoscalar sterile neutrino self-interactions in light of Planck, SPT and ACT data
Mattia Atzori Corona, Riccardo Murgia, Matteo Cadeddu +4
We reassess the viability of a cosmological model including a fourth additional sterile neutrino species that self-interacts through a new pseudoscalar degree of freedom. We perfor…
Linear cosmological constraints on 2-body decaying dark matter scenarios and the tension
Guillermo Franco Abellán, Riccardo Murgia, Vivian Poulin
The ' tension' is a longstanding discrepancy between the cosmic microwave background (CMB) and weak gravitational lensing determination of the amplitude of matter fluctuations…
Joint constraints on thermal relic dark matter from strong gravitational lensing, the Lyman- forest, and Milky Way satellites
Wolfgang Enzi, Riccardo Murgia, Oliver Newton +10
We derive joint constraints on the warm dark matter (WDM) half-mode scale by combining the analyses of a selection of astrophysical probes: strong gravitational lensing with extend…
Early dark energy is not excluded by current large-scale structure data
Tristan L. Smith, Vivian Poulin, José Luis Bernal +3
We revisit the impact of early dark energy (EDE) on galaxy clustering using BOSS galaxy power spectra, analyzed using the effective field theory (EFT) of large-scale structure (LSS…
Early dark energy resolution to the Hubble tension in light of weak lensing surveys and lensing anomalies
Riccardo Murgia, Guillermo F. Abellán, Vivian Poulin
Early Dark Energy (EDE) contributing a fraction of the energy density of the universe around and diluting as or faster than radiation…
Implications of the tension for decaying dark matter with warm decay products
Guillermo Franco Abellán, Riccardo Murgia, Vivian Poulin +1
Recent weak lensing surveys have revealed that the direct measurement of the parameter combination -- where is a measure of the amplitude of mat…
Non-linear damping of superimposed primordial oscillations on the matter power spectrum in galaxy surveys
Mario Ballardini, Riccardo Murgia, Marco Baldi +2
Galaxy surveys are an important probe for superimposed oscillations on the primordial power spectrum of curvature perturbations, which are predicted in several theoretical models o…
Constraining Nonthermal Dark Matter's Impact on the Matter Power Spectrum
Carisa Miller, Adrienne Erickcek, Riccardo Murgia
The inclusion of a period of (effective) matter domination following inflation and prior to the onset of radiation domination has interesting and observable consequences for struct…
Constraining Dark Matter -- Dark Radiation interactions with CMB, BAO, and Lyman-
Maria Archidiacono, Deanna C. Hooper, Riccardo Murgia +3
Several interesting Dark Matter (DM) models invoke a dark sector leading to two types of relic particles, possibly interacting with each other: non-relativistic DM, and relativisti…
Lyman- forest constraints on Primordial Black Holes as Dark Matter
Riccardo Murgia, Giulio Scelfo, Matteo Viel +1
The renewed interest in the possibility that primordial black holes (PBHs) may constitute a significant part of the dark matter has motivated revisiting old observational constrain…
Lyman- forest and non-linear structure characterization in Fuzzy Dark Matter cosmologies
Matteo Nori, Riccardo Murgia, Vid Iršič +2
Fuzzy Dark Matter (FDM) represents an alternative and intriguing description of the standard Cold Dark Matter (CDM) fluid, able to explain the lack of direct detection of dark matt…
Novel constraints on non-cold (non-thermal) Dark Matter from Lyman- forest data
Riccardo Murgia, Vid Iršič, Matteo Viel
In this paper we present an efficient method for constraining both thermal and non-thermal Dark Matter (DM) scenarios with the Lyman- forest, based on a simple and flexible para…
A general approach for testing non-cold dark matter at small cosmological scales
Riccardo Murgia
We present a general approach for modelling the small-scale suppression in the linear matter power spectrum induced by the presence of non-cold dark matter. We show that the new pa…
Lyman-alpha Constraints on Ultralight Scalar Dark Matter: Implications for the Early and Late Universe
Takeshi Kobayashi, Riccardo Murgia, Andrea De Simone +2
We investigate constraints on scalar dark matter (DM) by analyzing the Lyman-alpha forest, which probes structure formation at medium and small scales, and also by studying its cos…
"Non-cold" dark matter at small scales: a general approach
Riccardo Murgia, Alexander Merle, Matteo Viel +2
Structure formation at small cosmological scales provides an important frontier for dark matter (DM) research. Scenarios with small DM particle masses, large momenta or hidden inte…
Constraining the interaction between dark matter and dark energy with CMB data
Riccardo Murgia
We briefly discuss the intriguing case of a phenomenological non-gravitational coupling in the dark sector, where the interaction is parameterized as an energy transfer either from…
Constraints on the Coupling between Dark Energy and Dark Matter from CMB data
Riccardo Murgia, Stefano Gariazzo, Nicolao Fornengo
We investigate a phenomenological non-gravitational coupling between dark energy and dark matter, where the interaction in the dark sector is parameterized as an energy transfer ei…