The Fermi Bubbles as a Superbubble  

作　　者：Lorenzo Zaninetti 

机构地区：[1]Physics Department, via P.Giuria 1, Turin, Italy

出　　处：《International Journal of Astronomy and Astrophysics》2018年第2期200-217,共18页天文学与天体物理学国际期刊（英文）

摘　　要：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.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.

关 键 词：ISM BUBBLES CLOUDS GALAXY DISK Galaxies STARBURST 

分 类 号：O1[理学—数学]