Positive neutrino masses with DESI DR2 via matter conversion to dark energy

Abstract

The Dark Energy Spectroscopic Instrument (DESI) is a massively parallel spectroscopic survey on the Mayall telescope at Kitt Peak, which has released measurements of baryon acoustic oscillations determined from over 14 million extragalactic targets. We combine DESI Data Release 2 with CMB datasets to search for evidence of matter conversion to dark energy (DE), focusing on a scenario mediated by stellar collapse to cosmologically-coupled black holes (CCBH). In this physical model, which has the same number of free parameters as $\Lambda$CDM, DE production is determined by the cosmic star formation rate density (SFRD), allowing for distinct early- and late-time cosmologies. Using two SFRDs to bracket current observations, we find that the CCBH model: accurately recovers the cosmological expansion history, agrees with early-time baryon abundance measured by BBN, reduces tension with the local distance ladder, and relaxes constraints on the summed neutrino mass $\sum m_{\nu }$. For these SFRDs, we find a peaked positive $\sum m_{\nu }<0.149\mathrm{eV}$ (95% confidence) and $\sum m_{\nu }=0.106_{-0.069}^{+0.050}\mathrm{eV}$ respectively, in good agreement with lower limits from neutrino oscillation experiments. A peak in $\sum m_{\nu }>0$ results from late-time baryon consumption in the CCBH scenario and is expected to be a general feature of any model that converts sufficient matter to dark energy during and after reionization.

arXiv comment6 pages + 2 End Matter, 4 figures

References in corpus (59)

• Cosmic Star Formation History
• Accelerating Universes with Scaling Dark Matter
• The Cosmic Linear Anisotropy Solving System (CLASS) II: Approximation schemes
• A Comprehensive Measurement of the Local Value of the Hubble Constant with 1 km/s/Mpc Uncertainty from the Hubble Space Telescope and the SH0ES Team
• In the Realm of the Hubble tension $-$ a Review of Solutions
• Overview of the DESI Legacy Imaging Surveys
• Coupled Quintessence
• On the normalisation of the cosmic star formation history
• The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Cosmological Implications from two Decades of Spectroscopic Surveys at the Apache Point observatory
• The Temperature of the Cosmic Microwave Background
• Inflation Dynamics and Reheating
• The Pantheon+ Analysis: The Full Dataset and Light-Curve Release
• Gravitational Vacuum Condensate Stars
• Cobaya: Code for Bayesian Analysis of hierarchical physical models
• A census of baryons in the Universe from localized fast radio bursts
• Reheating in Inflationary Cosmology: Theory and Applications
• The Baryon Census in a Multiphase Intergalactic Medium: 30% of the Baryons May Still Be Missing
• Interacting Dark Matter and Dark Energy
• Overview of the Instrumentation for the Dark Energy Spectroscopic Instrument
• Gravastars must have anisotropic pressures
• The Atacama Cosmology Telescope: DR6 Gravitational Lensing Map and Cosmological Parameters
• Tale of stable interacting dark energy, observational signatures, and the $H_0$ tension
• The Early Data Release of the Dark Energy Spectroscopic Instrument
• Radiation Backgrounds at Cosmic Dawn: X-Rays from Compact Binaries
• Stable dark energy stars
• Observations of the MIssing Baryons in the warm-hot intergalactic medium
• DESI 2024 III: Baryon Acoustic Oscillations from Galaxies and Quasars
• DESI 2024 IV: Baryon Acoustic Oscillations from the Lyman Alpha Forest
• The Spectroscopic Data Processing Pipeline for the Dark Energy Spectroscopic Instrument
• Project Overview of the Beijing-Arizona Sky Survey
• CMB power spectra and cosmological parameters from Planck PR4 with CamSpec
• Cosmological parameters derived from the final (PR4) Planck data release
• The Robotic Multi-Object Focal Plane System of the Dark Energy Spectroscopic Instrument (DESI)
• Cosmological expansion and local physics
• The Pantheon+ Analysis: SuperCal-Fragilistic Cross Calibration, Retrained SALT2 Light Curve Model, and Calibration Systematic Uncertainty
• Neutrino masses and the dark energy equation of state - relaxing the cosmological neutrino mass bound
• Models of coupled dark matter to dark energy
• The Target-selection Pipeline for the Dark Energy Spectroscopic Instrument
• Surface Tension and Negative Pressure Interior of a Non-Singular `Black Hole'
• A Detailed Description of the CamSpec Likelihood Pipeline and a Reanalysis of the Planck High Frequency Maps
• Observational evidence for cosmological coupling of black holes and its implications for an astrophysical source of dark energy
• On the Dark Sector Interactions
• Escaping local minima with derivative-free methods: a numerical investigation
• Can Dark Matter Decay in Dark Energy?
• Changing the prior: absolute neutrino mass constraints in nonlocal gravity
• Performance of the Quasar Spectral Templates for the Dark Energy Spectroscopic Instrument
• A non-singular black hole model as a possible end-product of gravitational collapse
• Formation of dark energy stars
• A Preferential Growth Channel for Supermassive Black Holes in Elliptical Galaxies at z<2
• Stable Schwarzschild stars as black-hole mimickers
• Implications of Symmetry and Pressure in Friedmann Cosmology. I. Formalism
• Cosmological coupling of nonsingular black holes
• Stellar Black Holes and the Origin of Cosmic Acceleration
• DESI Dark Energy Time Evolution is Recovered by Cosmologically Coupled Black Holes
• Quasi-local masses and cosmological coupling of black holes and mimickers
• The challenge of measuring and mapping the missing baryons
• Black hole event horizons are cosmologically coupled
• Well-defined equations of motion without constraint of external sources
• Slowly rotating ultracompact Schwarzschild star in the gravastar limit

Cited by in corpus (6)

• New Interpretations of the Cosmological Preference for a Negative Neutrino Mass
• Dark Energy in the DESI Era: A Brief Review of Evidence, Beyond-$\Lambda$CDM Interpretations, and Tensions
• Joint Constraints on Neutrinos and Dynamical Dark Energy in Minimally Modified Gravity
• Measuring neutrino mass in light of ACT DR6 and DESI DR2
• Neutrino decays as a natural explanation of the neutrino mass tension
• Breaking Free from the Swampland of Impossible Universes through the DESI Portal