Abstract Details
| Name: Kanak Saha Affiliation: IUCAA Conference ID: ASI2015_633 Title : Is there a classical bulge in our Milky Way? Authors and Co-Authors : Kanak Saha Abstract Type : Invited Abstract Category : Stars, The Milky Way Galaxy and its neighbours Abstract : COBE/DIRBE satellite revealed that the central region of our Milky Way hosts a boxy shaped bulge rather than a spheroid. A number of evidences have already established that the Milky Way also hosts a stellar bar in the disk mid-plane and the boxy bulge is thought to have formed as a result of buckling instability of the bar. N-body modelling of the kinematic data from recently completed surveys such as BRAVA, VVV, etc. indicates that our Milky Way is a pure disk galaxy without a classical bulge. However, the stellar population and metallicity gradients in the bulge region do not rule out the existence of a classical bulge. After giving a brief overview of the current status of the Milky Way's bulge, I will discuss some new results that might shed some new light on this ongoing debate. |