Simulations of 47 Tuc show hierarchical mergers and occasional surviving primordial seeds above the pair-instability gap produce retained black holes of 45-1100 solar masses with distinct spin distributions, favoring a dark-remnant population over a single massive IMBH while remaining consistent the
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GravSphere2 extends Jeans modeling to fourth order with LOS and PM data plus flexible anisotropy forms to recover mass density, anisotropy, and density slope in spherical stellar systems while breaking the mass-anisotropy degeneracy.
citing papers explorer
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Repopulating the pair-instability mass gap without sustained growth to massive IMBHs: the case of 47\,Tuc
Simulations of 47 Tuc show hierarchical mergers and occasional surviving primordial seeds above the pair-instability gap produce retained black holes of 45-1100 solar masses with distinct spin distributions, favoring a dark-remnant population over a single massive IMBH while remaining consistent the
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GravSphere2: A higher-order Jeans method for mass-modeling spherical stellar systems
GravSphere2 extends Jeans modeling to fourth order with LOS and PM data plus flexible anisotropy forms to recover mass density, anisotropy, and density slope in spherical stellar systems while breaking the mass-anisotropy degeneracy.