Searching for dark-matter induced neutrino signals in dwarf spheroidal galaxies using 10 years of IceCube public data

Abstract

This study searches for neutrino signals from 18 dwarf spheroidal galaxies (dSphs) using 10 years of publicly available muon-track data of the IceCube neutrino observatory. We apply an unbinned likelihood analysis on each of these dSphs to derive the significance the putative neutrino emission. To further enhance our sensitivity, we also stack all dSphs together to perform a joint analysis. However, no significant neutrino emission signal was detected in either the single-source or stacking analysis. Based on these null results, we derive constraints on the annihilation cross section of dark matter particles. Compared to the existing literature, our constraints via the channel $\chi \chi \to {\mu }^{+}{\mu }^{-}$ are comparable to the ones from the VERITAS observations of dSphs.

References in corpus (20)

• Cats and Dogs, Hair and A Hero: A Quintet of New Milky Way Companions
• Beasts of the Southern Wild: Discovery of nine Ultra Faint satellites in the vicinity of the Magellanic Clouds
• IceCube-Gen2: The Window to the Extreme Universe
• Time-integrated Neutrino Source Searches with 10 years of IceCube Data
• Methods for point source analysis in high energy neutrino telescopes
• Dwarf galaxy annihilation and decay emission profiles for dark matter experiments
• Dark Matter Spectra from the Electroweak to the Planck Scale
• Indirect Dark Matter Detection Limits from the Ultra-Faint Milky Way Satellite Segue 1
• Search for High-Energy Neutrino Emission from Radio-Bright AGN
• Interpreting IceCube 6-year HESE data as an evidence for hundred TeV decaying Dark Matter
• Search for GeV-scale Dark Matter Annihilation in the Sun with IceCube DeepCore
• Combined searches for dark matter in dwarf spheroidal galaxies observed with the MAGIC telescopes, including new data from Coma Berenices and Draco
• Constraints on heavy decaying dark matter from 570 days of LHAASO observations
• Revisiting AGN as the Source of IceCube's Diffuse Neutrino Flux
• Constraints on heavy decaying dark matter with current gamma-ray measurements
• Baryonic effects on the detectability of annihilation radiation from dark matter subhaloes around the Milky Way
• Search for Ultraheavy Dark Matter from Observations of Dwarf Spheroidal Galaxies with VERITAS
• Current and future gamma-ray searches for dark-matter annihilation beyond the unitarity limit
• Investigating the correlations between IceCube high-energy neutrinos and Fermi-LAT gamma-ray observations
• Neutrino Observations of LHAASO Sources: Present Constraints and Future Prospects

Cited by in corpus (3)

• First Search for High-Energy Neutrino Emission from Galaxy Mergers
• Investigating the correlations between IceCube high-energy neutrinos and Fermi-LAT $\gamma$-ray observations. II
• LHAASO Galactic Plane $\gamma$-rays Strongly Constrain Heavy Dark Matter