text:   Chemo-Dynamical Modeling",4,"['Where did the millions of stars at the Galactic center come from? In a new paper, we find evidence that some of the stars probably came from a globular cluster or dwarf galaxy that fell in and got trapped. \n\n1/3\n\n<LINK>', 'How do we know this? We find that stars with low metal abundance move differently around the black hole than the stars with more metals! It is very unusual if they formed in the same place, but could be explained if the stars fell in. https://t.co/R0MEgRKntF', 'In a companion paper, my theory colleagues used computer simulations throwing star clusters and small galaxies into the center of our galaxy to explore this process. The simulations show that this infall might have happened over 3 billion years ago.  \n\nhttps://t.co/zA05uMjVRS', '@ProfAnnikaPeter It was fun to be able to do some dynamical modeling again!']",20,09,793