Dark matter powered stars: Constraints from the extragalactic background light

Abstract

The existence of predominantly cold non-baryonic dark matter is unambiguously demonstrated by several observations (e.g., structure formation, big bang nucleosynthesis, gravitational lensing, and rotational curves of spiral galaxies). A candidate well motivated by particle physics is a weakly interacting massive particle (WIMP). Self-annihilating WIMPs would affect the stellar evolution especially in the early universe. Stars powered by self-annihilating WIMP dark matter should possess different properties compared with standard stars. While a direct detection of such dark matter powered stars seems very challenging, their cumulative emission might leave an imprint in the diffuse metagalactic radiation fields, in particular in the mid-infrared part of the electromagnetic spectrum. In this work the possible contributions of dark matter powered stars (dark stars; DSs) to the extragalactic background light (EBL) are calculated. It is shown that existing data and limits of the EBL intensity can already be used to rule out some DS parameter sets.

Accepted for publication in ApJ; 7 pages, 5 figures

References in corpus (14)

• The James Webb Space Telescope
• New results from DAMA/LIBRA
• Results from a Search for Light-Mass Dark Matter with a P-type Point Contact Germanium Detector
• Population III stars: hidden or disappeared ?
• Dark matter and the first stars: a new phase of stellar evolution
• New limits on the density of the extragalactic background light in the optical to the far-infrared from the spectra of all known TeV blazars
• Two populations of metal-free stars in the early Universe
• Metal-Free Gas Supply at the Edge of Reionization: Late-Epoch Population III Star Formation
• The New DAMA Dark-Matter Window and Energetic-Neutrino Searches
• Dark Matter Capture in the First Stars: a Power Source and Limit on Stellar Mass
• Dark stars: Implications and constraints from cosmic reionization and extragalactic background radiation
• First stars and the extragalactic background light: How recent gamma-ray observations constrain the early universe
• Diffuse Extragalactic Background Radiation
• Black Holes in our Galactic Halo: Compatibility with FGST and PAMELA Data and Constraints on the First Stars

Cited by in corpus (19)

• The Extragalactic Background Light and the Gamma-ray Opacity of the Universe
• The extragalactic background light, the Hubble constant, and anomalies: conclusions from 20 years of TeV gamma-ray observations
• Constraints on the Intergalactic Magnetic Field with Gamma-Ray Observations of Blazars
• New Spectral Evidence of an Unaccounted Component of the Near-infrared Extragalactic Background Light from the CIBER
• New Horizons Observations of the Cosmic Optical Background
• Dark Stars: A Review
• Observing Dark Stars with JWST
• The cosmic optical background excess, dark matter, and line-intensity mapping
• Derivation of a large isotropic diffuse sky emission component at 1.25 and 2.2um from the COBE/DIRBE data
• Measurements of Diffuse Sky Emission Components in High Galactic Latitudes at 3.5 and 4.9 um Using DIRBE and WISE Data
• Gamma-rays as probes of the Universe
• Probing the EBL evolution at high redshift using GRBs detected with the Fermi-LAT
• Probing the peak of the star formation rate density with the extragalactic background light
• The isotropic interplanetary dust cloud and near-infrared extragalactic background light observed with COBE/DIRBE
• Novel bounds on decaying axionlike particle dark matter from the cosmic background
• SKYSURF-4: Panchromatic HST All-Sky Surface-Brightness Measurement Methods and Results
• Can Dark Stars account for the star formation efficiency excess at very high redshifts?
• Prospects of additional contribution at Optical-NIR band of EBL in the light of VHE spectra
• SKYSURF-11: A New Zodiacal Light Model Optimized for Optical Wavelengths