Galaxy Bulges and Elliptical Galaxies (PDF 16P)
Dimitri A. Gadotti
File Type :PDF
Number of Pages :16
Our knowledge on the central components of disk galaxies has grown
substantially in the past few decades, particularly so in the last. This frantic
activity and the complexity of the subject promote confusion in the community.
In these notes the author discuss the concept of galactic bulge and its different
flavors. This also address fundamental scaling relations and the bulge-elliptical
galaxy connection, their central black holes and formation models. In
particular, this book aims at conveying three important notions: box peanuts are
just the inner parts of bars; the physical reality of two different
families of bulges is evident and at the high mass end, at least,
classical bulges are not just scaled down ellipticals surrounded by disks.