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Black Hole Astrometric Binaries in the Roman Galactic Bulge Time Domain Survey

  • Authors: Casey Y. Lam, Jessica R. Lu, Kareem El-Badry, Anil Seth, Joshua D. Simon, Natasha S. Abrams, Andrea Bellini, Matthew W. Hosek, Peter McGill

Casey Y. Lam et al 2026 The Astrophysical Journal Supplement Series 287 .

  • Provider: AAS Journals

Caption: Figure 10.

BH+star binaries simulated in the Roman GBTDS contiguous fields. All simulated sources are shown in gray; sources for which masses are measured are shown in red. The left (right) panel shows their orbital periods (stellar companion mass) versus BH masses. Note that we have generated 10× as many NS and BH binaries as in our fiducial model above to enable better visualization of the statistics.

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