Fluxes of diffuse gamma rays and neutrinos from cosmic-ray interactions with circumgalactic gas
arXiv:1608.07421 · doi:10.1103/PhysRevD.94.063013
Abstract
The Milky Way is surrounded by a gravitationally bound gas corona extending up to the Galaxy's virial radius. Interactions of cosmic-ray particles with this gas give rise to energetic secondary gamma rays and neutrinos. We present a quantitative analysis of the neutrino and gamma-ray fluxes from the corona of the Milky Way together with a combined contribution of coronae of other galaxies. The high-energy neutrino flux is insufficient to explain the IceCube results, while the contribution to the FERMI-LAT diffuse gamma-ray flux is not negligible.
arXiv comment17 pages, 7 figures, revtex. V2: minor changes, version accepted by PRD
References in corpus (34)
- Evidence for High-Energy Extraterrestrial Neutrinos at the IceCube Detector
- Observation of High-Energy Astrophysical Neutrinos in Three Years of IceCube Data
- Monte Carlo treatment of hadronic interactions in enhanced Pomeron scheme: I. QGSJET-II model
- The spectrum of isotropic diffuse gamma-ray emission between 100 MeV and 820 GeV
- First observation of PeV-energy neutrinos with IceCube
- Mass models of the Milky Way
- HI in Local Group Dwarf Galaxies and Stripping by the Galactic Halo
- Evidence for Astrophysical Muon Neutrinos from the Northern Sky with IceCube
- A huge reservoir of ionized gas around the Milky Way: Accounting for the Missing Mass?
- Constraining the Milky Way's Hot Gas Halo with OVII and OVII Emission Lines
- KASCADE-Grande measurements of energy spectra for elemental groups of cosmic rays
- The Structure of the Milky Way's Hot Gas Halo
- Probing the Galactic Origin of the IceCube Excess with Gamma-Rays
- Extragalactic Background Light from Hierarchical Galaxy Formation: Gamma-ray Attenuation up to the Epoch of Cosmic Reionization and the First Stars
- Gas Rich Dwarf Spheroidals
- Constraints on the VHE Emissivity of the Universe from the Diffuse GeV Gamma-Ray Background
- Ram Pressure Stripping of the Large Magellanic Cloud's Disk as a Probe of the Milky Way's Circumgalactic Medium
- Unveiling the corona of the Milky Way via ram-pressure stripping of dwarf satellites
- A Galactic Halo Origin of the Neutrinos Detected by IceCube
- The IceCube Neutrino Observatory - Contributions to ICRC 2015 Part II: Atmospheric and Astrophysical Diffuse Neutrino Searches of All Flavors
- A Deep XMM-Newton Study of the Hot Gaseous Halo Around NGC 1961
- Galactic Neutrinos in the TeV to PeV Range
- PeV neutrinos from interactions of cosmic rays with the interstellar medium in the Galaxy
- Circum-Galactic Gas and the Isotropic Gamma Ray Background
- Deriving the cosmic ray spectrum from gamma-ray observations
- Star Formation and Stellar Mass Assembly in Dark Matter Halos: From Giants to Dwarfs
- Neutrino yield from Galactic cosmic rays
- The Circumgalactic Medium of the Milky Way is Half Hidden
- Evidence of Fermi bubbles around M31
- IceCube astrophysical neutrinos without a spectral cutoff and (10^15-10^17) eV cosmic gamma radiation
- Enhanced Pomeron diagrams: re-summation of unitarity cuts
- Neutrinos from Extra-Large Hadron Collider in the Milky Way
- Search for Galactic disk and halo components in the arrival directions of high-energy astrophysical neutrinos
- Density and metallicity of the Milky-Way circumgalactic gas
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- Constraints on Galactic Neutrino Emission with Seven Years of IceCube Data
- Giant cosmic ray halos around M31 and the Milky Way
- LHAASO sensitivity for diffuse gamma-ray signals from the Galaxy
- High-energy neutrinos from cosmic ray interactions in the Local Bubble
- Carpet-2 search for PeV gamma rays associated with IceCube high-energy neutrino events
- Gamma-ray Production in the Extended Halo of the Galaxy and Possible Implications for the Origin of Galactic Cosmic Rays
- Measuring the Mass of Missing Baryons in the Halo of Andromeda Galaxy with Gamma-Ray Observations
- On the contribution of cosmic-ray interactions in the circumgalactic gas to the observed high-energy neutrino flux
- Upper limits on the isotropic diffuse flux of cosmic PeV photons from Carpet-2 observations
- New limit on high Galactic latitude PeV gamma-ray flux from Tibet AS-gamma data