Using the Milky Way-est simulations to model the detectability of Milky Way Satellites Galaxies at the Vera C. Rubin Observatory
ORAL
Abstract
We utilize Milky Way-est, the newly released set of 20 cosmological cold-dark-matter only zoom in simulations of MW-like host halos, to make predictions for the detectability of Milky Way (MW) satellite galaxies and outer-halo star clusters by the upcoming Vera C. Rubin Observatory and Legacy Survey of Space and Time (LSST). Resolved stellar populations of Milky Way satellite galaxies and outer-halo star clusters are simulated over a wide range of parameters which are broadly consistent with expectations for the MW satellite system. Assuming a perfect star/galaxy classification, a model for the galaxy-halo connection fit to current data, and a simple matched-filter algorithm applied to the LSST wide-fast-deep data set, we predict 57±13 Milky Way satellite galaxies will be detectable.
*This work was supported by the U.S. Department of Energy, Office of Science, Office of High Energy Physics under Award Number DE-SC0024693.
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Presenters
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Aditya Ghosh
- University of North Florida