Response to Comment on "A noninteracting low-mass black hole-giant star binary system"

Science. 2020 May 8;368(6491):eaba4356. doi: 10.1126/science.aba4356.

Abstract

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 [Formula: see text] M , implying a black hole companion of [Formula: see text] M .

Publication types

  • Comment