Abstract Details
| Name: Arunima Banerjee Affiliation: IUCAA Conference ID: ASI2015_689 Title : A tilted dark matter halo: Signatures on the HI Rotation Curve and Scaleheight Data Authors and Co-Authors : Chanda J. Jog, IISc, Bangalore Abstract Type : Poster Abstract Category : Extragalactic astronomy Abstract : The HI rotation curve and scaleheight data constitute a valuable tracer of the shape and the density profile of the dark matter halo. Conventionally the dark matter halo is modeled to be oblate or prolate in shape with its symmetry axis aligned with that of the galactic disk. However recent N body simualtion studies of galaxy formation have indicated that the symmetry axis of the galactic disk may lie off the principal planes of the dark matter halo. In other words, the symmetry axis of the dark matter halo may remain tilted with respect to that of the disk. In this paper, we study the effect of such a tilted dark matter halo on the observed HI rotation curve and scaleheight data. |