Neutrino Lighthouse at Sagittarius A*
arXiv:1407.2243 · doi:10.1103/PhysRevD.90.063012
Abstract
We investigate whether a subset of high-energy events observed by IceCube may be due to neutrinos from Sagittarius A*. We check both spatial and temporal coincidences of IceCube events with other transient activities of Sagittarius A*. Among the seven IceCube shower events nearest to the galactic center, we have found that event 25 has a time very close to (around three hours after) the brightest X-ray flare of Sagittarius A* observed by the Chandra X-ray Observatory with a p-value of 0.9%. Furthermore, two of the seven events occurred within one day of each other (there is a 1.6% probability that this would occur for a random distribution in time). Thus, the determination that some IceCube events occur at similar times as X-ray flares and others occur in a burst could be the smoking gun that Sagittarius A* is a point source of very high energy neutrinos. We point out that if IceCube galactic center neutrino events originate from charged pion decays, then TeV gamma rays should come from neutral pion decays at a similar rate. We show that the CTA, HAWC, H.E.S.S. and VERITAS experiments should be sensitive enough to test this.
25 pages, 9 figures
References in corpus (53)
- A Brief Introduction to PYTHIA 8.1
- Evidence for High-Energy Extraterrestrial Neutrinos at the IceCube Detector
- Measuring Distance and Properties of the Milky Way's Central Supermassive Black Hole with Stellar Orbits
- The Galactic Center Massive Black Hole and Nuclear Star Cluster
- Observation of High-Energy Astrophysical Neutrinos in Three Years of IceCube Data
- An online repository of Swift/XRT light curves of GRBs
- Chandra X-ray Spectroscopic Imaging of Sgr A* and the Central Parsec of the Galaxy
- Testing the Hadronuclear Origin of PeV Neutrinos Observed with IceCube
- TeV-PeV Neutrinos from Low-Power Gamma-Ray Burst Jets inside Stars
- Measuring Flavor Ratios of High-Energy Astrophysical Neutrinos
- Methods for point source analysis in high energy neutrino telescopes
- Sensitivity of the High Altitude Water Cherenkov Detector to Sources of Multi-TeV Gamma Rays
- Probing the Galactic Origin of the IceCube Excess with Gamma-Rays
- Searches for Extended and Point-like Neutrino Sources with Four Years of IceCube Data
- Neutrinos at IceCube from Heavy Decaying Dark Matter
- A Chandra/HETGS Census of X-ray Variability From Sgr A* During 2012
- Attenuation of VHE gamma rays by the Milky Way interstellar radiation field
- Chandra-HETGS Observations of the Brightest Flare Seen from Sgr A*
- Are IceCube neutrinos unveiling PeV-scale decaying dark matter?
- Cosmic Neutrino Pevatrons: A Brand New Pathway to Astronomy, Astrophysics, and Particle Physics
- The Fermi Bubbles: Supersonic AGN Jets with Anisotropic Cosmic Ray Diffusion
- Dark Matter and Fundamental Physics with the Cherenkov Telescope Array
- Are both BL Lacs and pulsar wind nebulae the astrophysical counterparts of IceCube neutrino events?
- Ice Cube Observed PeV Neutrinos from AGN Cores
- A strongly magnetized pulsar within grasp of the Milky Way's supermassive black hole
- A Galactic Halo Origin of the Neutrinos Detected by IceCube
- Time Dependent Models of Flares from Sagittarius A*
- A generalized self-veto probability for atmospheric neutrinos
- Demystifying the PeV Cascades in IceCube: Less (Energy) is More (Events)
- Photohadronic Origin of the TeV-PeV Neutrinos Observed in IceCube
- Probing the stability of superheavy dark matter particles with high-energy neutrinos
- The Galactic Center Origin of a Subset of IceCube Neutrino Events
- NuSTAR detection of high-energy X-ray emission and rapid variability from Sagittarius A* flares
- A Search for Point Sources of EeV Neutrons
- What IceCube data tell us about neutrino emission from star-forming galaxies (so far)
- Neutrino Events at IceCube and the Fermi Bubbles
- Time-Dependent Point Source Search Methods in High Energy Neutrino Astronomy
- TANAMI Blazars in the IceCube PeV Neutrino Fields
- The X-ray flaring properties of Sgr A* during six years of monitoring with Swift
- The Galactic Center Weather Forecast
- Galactic PeV neutrinos from dark matter annihilation
- The Sensitivity of HAWC to High-Mass Dark Matter Annihilations
- Reevaluation of the Prospect of Observing Neutrinos from Galactic Sources in the Light of Recent Results in Gamma Ray and Neutrino Astronomy
- Search for correlations of the arrival directions of ultra-high energy cosmic ray with extragalactic objects as observed by the telescope array experiment
- Sensitivity of CTA to dark matter signals from the Galactic Center
- Galaxy Mergers as a Source of Cosmic Rays, Neutrinos, and Gamma Rays
- Is the Ultra-High Energy Cosmic-Ray Excess Observed by the Telescope Array Correlated with IceCube Neutrinos?
- End of the cosmic neutrino energy spectrum
- Origin of very high and ultra high energy cosmic rays
- Constraints on The Hadronic Content of Gamma Ray Bursts
- Exploring the Nature of the Galactic Center Gamma-Ray Source with the Cherenkov Telescope Array
- Gamma rays and neutrinos from a cosmic ray source in the Galactic Center region
- IceCube: Neutrino Physics from GeV - PeV
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- Evidence against star-forming galaxies as the dominant source of IceCube neutrinos
- New Physics in Astrophysical Neutrino Flavor
- Opening a New Window onto the Universe with IceCube
- Spectral analysis of the high-energy IceCube neutrinos
- First all-flavour Neutrino Point-like Source Search with the ANTARES Neutrino Telescope
- IceCube events and decaying dark matter: hints and constraints
- Galactic Neutrinos in the TeV to PeV Range
- A Possible Two-component Flux for the High Energy Neutrino Events at IceCube
- First combined search for neutrino point-sources in the Southern Hemisphere with the ANTARES and IceCube neutrino telescopes
- Analysis of the 4-year IceCube high-energy starting events
- Sensitivity of a proposed space-based Cerenkov astrophysical-neutrino telescope (CHANT)
- ANTARES and IceCube Combined Search for Neutrino Point-like and Extended Sources in the Southern Sky
- High-energy Neutrinos from Multi-body Decaying Dark Matter
- On the Origin of High-Energy Cosmic Neutrinos
- Prospects for Detecting Galactic Sources of Cosmic Neutrinos with IceCube: An Update
- Boosted Dark Matter and its implications for the features in IceCube HESE data
- Evidence for a break in the spectrum of astrophysical neutrinos
- Do high energy astrophysical neutrinos trace star formation?
- Estimating the contribution of Galactic sources to the diffuse neutrino flux
- On the gravitational field of a point-like body immersed in quantum vacuum
- High-Energy Galactic Cosmic Rays (Astro2020 Science White Paper)
- Neutrino lighthouse powered by Sagittarius A* disk dynamo
- The Galactic Center: A PeV Cosmic Ray Acceleration Factory
- Antimatter gravity and the Universe
- ANTARES neutrino search for time and space correlations with IceCube high-energy neutrino events
- Quantum coherence in neutrino spin-flavor oscillations
- On the angular distribution of IceCube high-energy events