MPA Stellar Model Grid Repository

Welcome to the Max Planck Institute for Astrophysics' Stellar Model Grid Repository. This collection contains comprehensive stellar evolution models computed using the MESA (Modules for Experiments in Stellar Astrophysics) code, covering various metallicities and configurations for both single and binary star systems.

Each grid contains pre-computed, detailed evolutionary tracks in the form of MESA history files, which have been compressed into tar archives for convenient downloading. The history files contain key stellar parameters such as mass, radius, luminosity, effective temperature, and internal structure information throughout the star's evolution.

The grids cover a wide range of initial conditions:

Detailed binary evolution models at Small Magellanic Cloud (SMC), Large Magellanic Cloud (LMC), and Milky Way (MW) metallicities
Binary star models with various mass ratios and orbital periods
Different rotation rates and mixing efficiencies
Specialized grids for specific stellar phenomena

SMC for high semiconvection efficiency

Grid Properties: ~58000 models, ~60 GB
Initial Mass (M₁,i): 5 - 100 M☉ (ΔlogM₁,i = 0.05 M☉)
Initial Mass Ratio (qi): 0.3 - 0.95 (Δqi = 0.05)
Initial Period (Pi): 1 - 3000 days (ΔlogPi = 0.025 days)
Author: Chen Wang
MESA Version: 8845

Data Files:

Reference: Wang, Chen; Langer, Norbert; Schootemeijer, Abel; Castro, Norberto; Adscheid, Sylvia; Marchant, Pablo; Hastings, Ben 2020ApJ...888L..12W

SMC for low semiconvection efficiency

Grid Properties: ~75000 models, ~70 GB
Initial Mass (M₁,i): 10 - 100 M☉ (ΔlogM₁,i = 0.05 M☉)
Initial Mass Ratio (qi): 0.25 - 0.975 (Δqi = 0.025)
Initial Period (Pi): 1 - 3000 days (ΔlogPi = 0.025 days)
Author: Chen Wang
MESA Version: 8845

Data Files:

Reference: TBD

LMC Set A (M₁,i < 40 M☉)

Grid Properties: ~68000 models, ~50 GB
Initial Mass (M₁,i): 5 - 40 M☉ (ΔlogM₁,i = 0.05 M☉)
Initial Mass Ratio (qi): 0.025 - 0.975 (Δqi = 0.025)
Initial Period (Pi): 1 - 3000 days (ΔlogPi = 0.025 days)
Physics Setup: Low semiconvection efficiency; Hamann+1995 WR rates × 0.1
Author: Pablo Marchant
MESA Version: 8845

Data Files:

Reference: Marchant, Pablo 2017PhDT.......434M

LMC Set B (M₁,i > 40 M☉)

Grid Properties: ~6000 models, ~10 GB
Initial Mass (M₁,i): 40 - 70 M☉ (ΔlogM₁,i = 0.05 M☉)
Initial Mass Ratio (qi): 0.25 - 0.95 (Δqi = 0.05)
Initial Period (Pi): 1 - 10000 days (ΔlogPi = 0.05 days)
Physics Setup: Moderate semiconvection efficiency; Hamann+1995 WR rates × 0.1
Author: Daniel Pauli
MESA Version: 10398

Data Files:

Reference: TBD

LMC Set C

Grid Properties: ~13000 models, ~30 GB
Initial Mass (M₁,i): 30 - 100 M☉ (ΔlogM₁,i = 0.05 M☉)
Initial Mass Ratio (qi): 0.25 - 0.95 (Δqi = 0.05)
Initial Period (Pi): 1 - 10000 days (ΔlogPi = 0.05 days)
Physics Setup: Moderate semiconvection efficiency; Yoon WR mass-loss rates
Author: Daniel Pauli
MESA Version: 10398

Data Files:

Reference: Pauli, D.; Langer, N.; Aguilera-Dena, D. R.; Wang, C.; Marchant, P. 2022A&A...667A..58P

Grid Properties: ~38000 models, ~60 GB
Initial Mass (M₁,i): 5 - 100 M☉ (ΔlogM₁,i = 0.05 M☉)
Initial Mass Ratio (qi): 0.1 - 0.95 (Δqi = 0.05)
Initial Period (Pi): 0.3 - 5000 days (ΔlogPi = 0.05 days)
Author: Harim Jin
MESA Version: 10398

Data Files:

Reference: TBD

SMC

Grid Properties: ~1000 models, ~500 MB
Initial Mass (M₁,i): 5 - 100 M☉ (ΔlogM₁,i = 0.05 M☉)
Initial Rotation (vrot,i): 0 - 600 km/s (Δvrot,i = 20 km/s)
Author: Harim Jin
MESA Version: 10398

Data Files:

single_SMC_history

MESA_input_data

Reference: TBD

LMC

Grid Properties: ~1000 models, ~500 MB
Initial Mass (M₁,i): 5 - 100 M☉ (ΔlogM₁,i = 0.05 M☉)
Initial Rotation (vrot,i): 0 - 600 km/s (Δvrot,i = 20 km/s)
Author: Harim Jin
MESA Version: 10398

Data Files:

single_LMC_history

MESA_input_data

Reference: TBD

Grid Properties: ~4000 models, ~3 GB
Initial Mass (M₁,i): 5 - 100 M☉ (ΔlogM₁,i = 0.02 M☉)
Initial Rotation (vrot,i): 0 - 600 km/s (Δvrot,i = 10 km/s)
Author: Harim Jin
MESA Version: 10398

Data Files:

single_MW_history

MESA_input_data

Reference: Jin, Harim; Langer, Norbert; Lennon, Daniel J.; Proffitt, Charles R. 2024A&A...690A.135J

SMC models from Abel Schootemeijer

Grid Properties: ~600 models, ~70 MB
Initial Mass (M₁,i): 5 - 100 M☉ (13 masses)
Semiconvection Efficiency (α): 0.01 - 100
Overshooting Efficiency (α): 0.11 - 0.55
Rotation: Non-rotating
Author: Abel Schootemeijer
MESA Version: 10108

Data Files:

single_SMC_abel_history

(TBD) MESA_input_data

Reference: Schootemeijer, A.; Langer, N.; Grin, N. J.; Wang, C. 2019A&A...625A.132S

Binary SN IIn progenitors

Grid Properties: ~150 models, ~400 MB
Initial Mass (M₁,i): 12.6 M☉
Initial Mass Ratio (qi): 0.1 - 0.95
Initial Period (Pi): 1000 - 3000 days
Author: Andrea Ercolino
MESA Version: 10398

Data Files:

Reference: Ercolino, A.; Jin, H.; Langer, N.; Dessart, L. 2024A&A...685A..58E

Binary SN Ibn progenitors

Grid Properties: ~60 models, ~300 MB
Initial Mass (M₁,i): 12.3 - 14.1 M☉ (ΔlogM₁,i = 0.01 M☉)
Initial Mass Ratio (qi): 0.5
Initial Period (Pi): 5 - 25 days
Author: Andrea Ercolino
MESA Version: 10398

Data Files:

ZAMS_cHeDep_history_primary

ZAMS_cHeDep_profile_primary

ZAMS_cHeDep_history_secondary

ZAMS_cHeDep_history_binary

ZAMS_cHeDep_MESA_input_data

cHeDep_CC_history_primary

cHeDep_CC_profile_primary

cHeDep_CC_history_secondary

cHeDep_CC_history_binary

cHeDep_CC_MESA_input_data

Reference: Ercolino, Andrea; Jin, Harim; Langer, Norbert; Dessart, Luc 2024arXiv241209893E

SMC binary MC simulation1

Grid Properties: ~2000 models, ~1 GB
Initial Mass (M₁,i): 5 - 100 M☉
Initial Mass Ratio (qi): 0.3 - 1
Initial Period (Pi): 1 - 3000 days
Initial Rotation: Tidally locked
Author: Chen Wang
MESA Version: 8845

Data Files:

Reference: Wang, Chen; Langer, Norbert; Schootemeijer, Abel; Castro, Norberto; Adscheid, Sylvia; Marchant, Pablo; Hastings, Ben 2020ApJ...888L..12W

SMC binary MC simulation2

Grid Properties: ~10000 models, ~8 GB
Initial Mass (M₁,i): 3 - 100 M☉
Initial Mass Ratio (qi): 0.1 - 1
Initial Period (Pi): 1 - 3000 days
Initial Rotation: 0.2, 0.6 critical rotation
Author: Xiao-Tian Xu
MESA Version: 8845

Data Files:

v_vcrit_0.2_history_primary

v_vcrit_0.2_history_secondary

v_vcrit_0.2_history_binary

v_vcrit_0.6_history_primary

v_vcrit_0.6_history_secondary

v_vcrit_0.6_history_binary

MESA_input_data

Reference: Wang, Chen; Langer, Norbert; Schootemeijer, Abel; Milone, Antonino; Hastings, Ben; Xu, Xiao-Tian; Bodensteiner, Julia; Sana, Hugues; Castro, Norberto; Lennon, D. J.; Marchant, Pablo; de Koter, A.; de Mink, Selma E. 2022NatAs...6..480W

After downloading and extracting the tar files, you can use the following Python script to read the compressed history files:

# Code tested on Python 3.11, pandas 2.2.3
import pandas as pd

# After downloading the tar file, extract it to a folder.
# Then, use this sample code to read the compressed history files.

# Replace this with the path to the history file you want to read.
file = 'MW/binary/1.100/1.100_0.650_3.300_compressed.pkl.gz'

# Read the compressed DataFrame
df = pd.read_pickle(file, compression='gzip')

# Now you can work with the DataFrame `df`
print("Columns of the history file:")
print(list(df.columns))

print("\nFirst row of history file:")
print(df.iloc[0])

Data Access Request

To request access to these stellar model grids, or to contribute to this repository, please email one of the maintainers:

Thibault Lechien (lechien@mpa-garching.mpg.de)

Harim Jin (hjin@astro.uni-bonn.de)

Stephen Justham (sjustham@mpa-garching.mpg.de)

License

These stellar model grids are made available under the Creative Commons Attribution 4.0 International License (CC BY 4.0). For details, see the full license.