Understanding Binary Systems—a Comparison between COSMIC and MESA

Journal Article · 04 August 2023 · Research Notes of the AAS

DOI: https://doi.org/10.3847/2515-5172/aced00 · OSTI ID:1993849

Kenoly, Lailani; Luu, A. Ken; Toral, Celia; Cheng, Roseanne M. ; Lloyd-Ronning, Nicole M. ; Larson, Shane L.; Casabona, Gabriel O.

Abstract We compare the evolution of binary systems evolved in the MESA stellar evolution code to those in the COSMIC population synthesis code. Our aim is to convey the robustness of the equations that model binary evolution in the COSMIC code, particularly for the cases of high mass stars with closely orbiting compact object companions. Our larger goal is to accurately model the rates of these systems, as they are promising candidates for the progenitor systems behind energetic, longer lasting, radio bright GRB jets. These systems also may be key contributors to the rates of binary black hole mergers throughout our Universe.

• Sponsoring Organization: USDOE
• Grant/Contract Number: NONE; 89233218CNA000001
• OSTI ID: 1993849
• Journal Information: Research Notes of the AAS, Journal Name: Research Notes of the AAS Journal Issue: 8 Vol. 7; ISSN 2515-5172
• Publisher: American Astronomical SocietyCopyright Statement
• Country of Publication: United Kingdom
• Language: English