Young Pulsars and the Galactic Center GeV Gamma-ray Excess
arXiv:1504.02477
Abstract
Studies of Fermi data indicate an excess of GeV gamma rays around the Galactic center (GC), possibly due to dark matter. We show that young gamma-ray pulsars can yield a similar signal. First, a high concentration of GC supernovae naturally leads to a population of kicked pulsars symmetric about the GC. Second, while very-young pulsars with soft spectra reside near the Galactic plane, pulsars with spectra that have hardened with age accumulate at larger angles. This combination, including unresolved foreground pulsars, traces the morphology and spectrum of the Excess.
Submitted to PRL
Cited by in corpus (6)
- The Return of the Templates: Revisiting the Galactic Center Excess with Multi-Messenger Observations
- Detection of a dense group of hyper-compact radio sources in the central parsec of the Galaxy
- Interpreting the galactic center gamma-ray excess in the NMSSM
- A Multi-frequency analysis of possible Dark Matter Contributions to M31 Gamma-Ray Emissions
- An Algorithm for Reconstructing the Orphan Stream Progenitor with MilkyWay@home Volunteer Computing
- Implications of the Fermi-LAT Pass 8 Galactic Center Excess on Supersymmetric Dark Matter