About

Massive Objects in Binary Stellar Evolution

MOBSE is a customized version of BSE (acronym for Binary Stellar Evolution Hurley et al. 2002). With respect to BSE, MOBSE is a population-synthesis code that includes some important upgrades for the evolution of massive stars both singles and in binary systems:

new treatment for the natal kicks velocities
up-to-date equations for metal-dependent stellar winds including the dependence on the Eddington factor
recent models for core-collapse and electron-capture supernovae (SNe)
prescriptions for pair-instability and pulsational-pair-instability SNe
updated formulas to compute the core radii
maximum initial mass up to 150 Msun

You can find more details about MOBSE in the following papers:

“Revising Natal Kick Prescriptions in Population Synthesis Simulations” Giacobbo N. & Mapelli M., ApJ Vol. 891, 141, 9 (2020)
“The impact of electron-capture supernovae on merging double neutron stars” Giacobbo N. & Mapelli M., MNRAS 482, 2234–2243 (2019)
“The progenitors of compact-object binaries: impact of metallicity, common envelope and natal kicks” Giacobbo N. & Mapelli M., MNRAS 480, 2011–2030 (2018)
“Merging black hole binaries: the effects of progenitor’s metallicity, mass-loss rate and Eddington factor” Giacobbo N., Mapelli M., Spera M., MNRAS 474, 2959–2974 (2018)

The source code of MOBSE is available at the gitlab repository.