The late-type stellar density profile in the Galactic Center: A statistical approach
Abstract
The late-type stellar population in the Galactic Center was first predicted to reside in a dynamically relaxed cusp (power law slope ranging from 3/2 to 7/4). However, observations - which rely on models to correct for projection effects - have suggested a flat distribution instead. The need for this correction is due to the lack of information regarding the line-of-sight distances. With a two decade long baseline in astrometric measurements, we are now able to measure significant projected radial accelerations, six of which are newly reported here, that directly constrain line-of-sight distances. Here we present a statistical approach to take advantage of this information and more accurately constrain the shape of the radial density profile of the late-type stellar population in the Galactic Center.
Cite
@article{arxiv.1610.02437,
title = {The late-type stellar density profile in the Galactic Center: A statistical approach},
author = {Samantha N. Chappell and Andrea M. Ghez and Tuan Do and Gregory D. Martinez and Sylvana Yelda and Breann N. Sitarski and Jessica R. Lu and Mark R. Morris},
journal= {arXiv preprint arXiv:1610.02437},
year = {2017}
}
Comments
3 pages, 1 figure, Proceedings of IAU Symposium 322nd: The Multi-Messenger Astrophysics of the Galactic Centre; 2016 July 18 - 22, Cairns (Australia)