Pheno & Vino Seminar | David Hogg, NYU | "Imaging the dark matter with stars" | Jadwin 303

Tue, Apr 2, 2019, 4:00 pm
Jadwin 303

I discuss ways in which we might make very precise measurements of the dark matter in the Milky Way using kinematic and composition data on stars from the ESA Gaia Mission and spectroscopic surveys like SDSS-IV and -V. I will show two methods that outperform traditional methods (eg, using the Jeans equations), one of which doesn’t even require the assumption of stationary or equilibrium. All methods require strong assumptions, however; there are no model-free ways to measure a truly non-interacting dark sector.