activity
20242026
collaborators

5 papers

astro-ph.GA2026

Galactic Archaeology with the Subaru `Ōnohi`ula Prime Focus Spectrograph Strategic Program

Masashi Chiba, Rosemary F. G. Wyse, Evan N. Kirby +47

The recently commissioned Subaru `Ōnohi`ula Prime Focus Spectrograph (PFS) will obtain spectra from nearly 2,400 fibers that cover 1.24 square degrees. The 360 night Subaru Strateg…

astro-ph.CO2026

Forecasting Sensitivity to Modified Dispersion Effects in Pulsar Timing Arrays

Jonathan Grée, Qiuyue Liang, Elisa G. M. Ferreira

The pulsar timing array systems have reported a detection of a nanohertz-band stochastic gravitational wave background in our galaxy. It is of interest to use this observation to p…

astro-ph.GA2026

Fuzzy Dark Matter and the Impact of Core--Halo Diversity on Its Particle Mass Constraints

Dafa Wardana, Kohei Hayashi, Masashi Chiba +1

We investigate how diversity in the core--halo mass relation and the inclusion of higher-order velocity moments affect constraints on the fuzzy dark matter particle mass () in…

astro-ph.CO2025

The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics

Eleonora Di Valentino, Jackson Levi Said, Adam Riess +533

The standard model of cosmology has provided a good phenomenological description of a wide range of observations both at astrophysical and cosmological scales for several decades.…

astro-ph.CO2024

Profile Likelihoods in Cosmology: When, Why and How illustrated with CDM, Massive Neutrinos and Dark Energy

Laura Herold, Elisa G. M. Ferreira, Lukas Heinrich

Frequentist parameter inference using profile likelihoods has received increased attention in the cosmology literature recently since it can give important complementary informatio…