The structure and evolution of a high-mass stellar merger in the Hertzsprung gap

Data from:

        The structure and evolution of a high-mass stellar merger in the Hertzsprung gap

        by

        Patton, Rachel A., Pinsonneault, Marc H., & Thompson, Todd A.
        (2025).

 (Submitted to ApJ)

- Detailed descriptions of calculations are provided in the paper, but
  please feel free to get in touch with questions, or
  if you need something that is not provided here.

Contacts:
    Rachel Patton = rap[dot]342[at]pitt[dot]edu
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Below are brief descriptions of each dataset. More details can be found in the paper. Each folder contains the inlists needed to recreate the model, the mod file at the end of the run, the history file, and the final profile.

merger.zip (19.1 MB)
- Entropy_sorted is separated into four folders which contain the files to manage each step

• 1_evolve_binary: evolves the binary to the point of contact
• 2_relax_mass: scales up the mass for a stellar model to the new mass of the merger and evolves the new star for a Kelvin-Helmholtz time
• 3_relax_composition: changes the composition of the new massive, relaxed model to the entropy-sorted composition of both stars. The entropy sorted composition is in the file merger_composition.txt
• 4_evolve_merger: evolves the merger product to carbon ignition

- Rapid_accretion evolves relaxed_mass.mod to carbon ignition

- Rapid_accretion_average_comp is divided into two folders

• 2_relax_mass: takes M1.mod from Entropy_sorted/1_evolve_binary and rescales its mass with a manually set composition
• 4_evolve_merger: evolves the new, higher mass star to carbon ignition

- 11_single evolves a non-rotating, solar metallicity single star to carbon ignition

- 13p6_single evolves a non-rotating, solar metallicity single star to carbon ignition

- 17p3_single evolves a non-rotating, solar metallicity single star to carbon ignition