TITLE:
The Fermi Bubbles as a Superbubble
AUTHORS:
Lorenzo Zaninetti
KEYWORDS:
ISM, Bubbles, ISM, Clouds, Galaxy, Disk, Galaxies, Starburst
JOURNAL NAME:
International Journal of Astronomy and Astrophysics,
Vol.8 No.2,
June
22,
2018
ABSTRACT: In order to model the Fermi bubbles we apply the theory of the superbubble (SB). A thermal model and a self-gravitating model are reviewed. We introduce a third model based on the momentum conservation of a thin layer which propagates in a medium with an inverse square dependence for the density. A comparison has been made between the sections of the three models and the section of an observed map of the Fermi bubbles. An analytical law for the SB expansion as a function of the time and polar angle is deduced. We derive a new analytical result for the image formation of the Fermi bubbles in an elliptical framework.