Energy spectrum and physical interpretation of the Fermi bubbles
Thursday 18 September 2014
to 13:15 at
The Fermi bubbles are two gamma-ray lobes extending up to 55 degrees
above and below the Galactic center. The Fermi bubbles, in contrast to
lobes in other galaxies, were discovered in gamma rays, rather than radio
waves or X-rays, which makes them both unique and interesting to study.
We have analyzed 50 months of the Fermi LAT data to study in detail the
spectrum and morphology of the Fermi bubbles. In the talk, I will present
results of this analysis and an interpretation of the bubbles in terms of
leptonic and hadronic gamma-ray emission mechanisms. In spite of a lot
of progress in the study of the Fermi bubbles, the problem of their origin
and the emission mechanism is still unresolved. It promises to be an
interesting and dynamic research area in the future.