Response to Comment on "A noninteracting low-mass black hole-giant star binary system"
Thursday, May 7, 2020 - 13:30
in Astronomy & Space
Van den Heuvel and Tauris argue that if the red giant star in the system 2MASS J05215658+4359220 has a mass of 1 solar mass (M), then its unseen companion could be a binary composed of two 0.9 M stars, making a triple system. We contend that the existing data are most consistent with a giant of mass M, implying a black hole companion of M.