3 papers
astro-ph.CO2026
Supernova Cousins: The Intrinsic Dispersion and Environmental Dependence of Type Ia Supernovae in Galaxy Groups with TITAN
Allison Blum, Erik R. Peterson, David O. Jones +7
At low redshift, scatter in the Type Ia supernova (SN Ia) Hubble diagram is increased by peculiar velocities (PVs) and correlations between SN distances and their host-galaxy envir…
astro-ph.CO2026
Hawai`i Supernova Flows: Bulk Flow Measurements using SNe Ia in the Optical and NIR
Aaron Do, Kaisey S. Mandel, Benjamin J. Shappee +9
The present day peculiar velocity-field was sourced by primordial density fluctuations and sculpted over the lifespan of the Universe. Cosmological models such as CDM make predi…
astro-ph.CO2026
The Peculiar Growth of Structure: Validating Measurements from TITAN Type Ia Supernovae and the Uchuu Simulations
Mitchell Dixon, David O. Jones, Nicole E. Drakos +11
The growth rate of cosmic structure, parameterized by , is a fundamental test of CDM and general relativity. Using Type Ia supernova (SN Ia) peculiar velocities in conjunc…