The Bulge of M31
Publications of the Astronomical Society of Australia | CAMBRIDGE UNIV PRESS | Published : 2013
Bulges are not just elliptical subgalaxies situated in the centers of large spirals, though it might seem so from their ages and chemistry. In fact, bulge kinematics have been known to be different since the first long slit spectra were obtained. M31 presents the best opportunity to investigate all the issues of the stellar populations of bulges. This review collects the array of probing data that has been accumulated during the last decade. But the intriguing question 'how did it form like this?' remains. © 2013 Astronomical Society of Australia.
Awarded by Australian Research Council Centre of Excellence
This paper is based on a presentation to Martin Schwarzschild Centenary meeting at Princeton in June 2012. I thank the organisers for their invitation to give this review. I also appreciate the help of anonymous referees in transitioning this review from the verbal to the written medium. The study of the evolving universe is supported by the Australian Research Council through CAASTRO<SUP>4</SUP>. The Centre for All-sky Astrophysics is an Australian Research Council Centre of Excellence, funded by grant CE11E0090.