Spiral galaxy bulges

We study the spin-up of primordial bulges due to the interaction with bars, using N-body simulations to follow the growth of the bar and the formation of a box/peanut bulge. We compare the resulting composite bulges with observations of nearby spiral galaxies.

Main Topics


Blaña Díaz M., Wegg C., Gerhard O.,  Erwin P., Portail M., Opitsch M., Saglia R., Bender, R., 2017, MNRAS, 466, 4279
Andromeda chained to the Box - Dynamical Models for M31: Bulge & Bar eprint arXiv:1612.02319

Saha, K., Gerhard, O., Martinez-Valpuesta, I.,  A&A, 588, A42
Spin-up of massive classical bulges during secular evolution2016MNRAS.463L..41B 

Saha, K., Gerhard, O.,  2013,  MNRAS,  430,  2039,   
Secular evolution and cylindrical rotation in boxy/peanut bulges: impact of initially rotating classical bulges. 2013MNRAS.430.2039S

Saha, K., Martinez-Valpuesta, I., Gerhard, O.,  2012,  MNRAS,  421,  333,   
Spin-up of low-mass classical bulges in barred galaxies. 2012MNRAS.421..333S

loading content