Rethinking Thorne-Żytkow Object Formation: The Fate of X-ray Binary LMC X-4 and Implications for Ultra-long Gamma-ray Bursts

Tenley Hutchinson-Smith, Rosa Wallace Everson, Angela A. Twum +5

We present a start-to-end simulation aimed at studying the long-term fate of high-mass X-ray binaries and whether a Thorne-Å»ytkow object (TÅ»O) might ultimately be assembled. We a…