Image Details

Choose export citation format:

The Walkaway Star HP Tau/G2: Evidence for a Stellar Merger

  • Authors: Bo Reipurth, J. Bally, P. Friberg, D. M. Faes, C. Briceño, M. S. Connelley, C. Flores, A. M. Cody, H. Zinnecker

Bo Reipurth et al 2026 The Astronomical Journal 171 .

  • Provider: AAS Journals

Caption: Figure 19.

The location of a number of FUors (black diamonds) compared with evolutionary tracks and models at a range of ages (ages of models are indicated in the bar) in a figure adapted from Figure 9 of V. G. Elbakyan et al. (2019); see their paper for further details. The current locations of G2 and HD 283572 are plotted, with temperatures adopted from their optical spectral types. Eruptions in low-mass stars allow them to appear more massive and warmer than their actual masses would indicate. We argue that G2 and HD 283572 after their merger events occupied positions further up to the left. As they are now undergoing re-structuring, they gradually move toward the location of quiescent stars corresponding to their new increased masses.

Other Images in This Article

Show More

Copyright and Terms & Conditions

Additional terms of reuse