"Full of Hot Air: Wind-Fed GRMHD Simulations of Sagittarius A*"

Sagittarius A* (Sgr A*), the supermassive black hole in the Galactic Center has always been of prime interest to the astrophysical community due to its proximity and relatively high angular resolution in the sky.  This is even more true now that the Event Horizon Telescope has resolved the 230 GHz emission and the GRAVITY interferometer has observed the orbital path of NIR flares at ~ 5 times the Schwarzschild radius of the black hole, giving new and exciting constraints on the accretion flow.  Our understanding of this system has been greatly increased by the now hundreds, if not thousands of general relativistic simulations that have been used to model it.  Yet there still remain many open questions.  One way to make progress is to take a page from 1D semi-analytic models and connect the horizon-scale observations to the Bondi-scale observations in three-dimensional models.   I will present nested, multi-scale simulations that attempt to do just that by taking into account observationally-motivated feeding of Sgr A* from nearby stellar winds and extending over 6 orders of magnitude in radius.   Despite having relatively few free parameters, they can match reasonably well several independent observational probes.  The new results that I will present can provide insight into tilted accretion disks/jets, jet propagation, the rotation measure of Sgr A*, and more.