The Spectrum and Morphology of the Fermi Bubbles
The Fermi bubbles are two large structures in the gamma-ray sky extending up to 55 deg above and below the Galactic center. They might indicate past activity of the Milky Way's black hole and provide a unique opportunity to study extended gamma-ray lobes in our neighborhood.
On behalf of the Fermi-LAT collaboration I will present the analysis of 50 months of Fermi-LAT data from 100 MeV to 500 GeV above 10 deg in Galactic latitude to derive the spectrum and morphology of the Fermi bubbles. I will show results on the spectral shape, spatial substructure in the emission, variability of the spectrum as a function of latitude and an estimate of the width of the bubble boundary. I will discuss the modeling of the gamma-ray spectrum with hadronic and leptonic models and the possible relation to the microwave haze.
Speaker: Anna Franckowiak, KIPAC
Thursday, 06/05/14
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Kavli Institute Astrophysics Colloquium
Physics and Astrophysics Building Room 102/103
452 Lomita Mall
Stanford, CA 94305
452 Lomita Mall
Stanford, CA 94305