Information on Service 'MESA Grid: Binary Evolution (M1=6.0, M2=4.0, Z=0.02)'

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Grid of Close-Binary Evolution Models

This dataset contains a grid of close-binary evolution models computed with the MESA (Modules for Experiments in Stellar Astrophysics) code, version r24.08.1. The primary objective is to investigate the dependence of binary interaction on the initial orbital period.

Model Configuration:

Physics and Assumptions:

Termination Criteria:

Calculations are terminated if:

  1. Roche-lobe overflow occurs at the very first timestep.
  2. The system undergoes overflow through the outer Lagrangian point (L2).

The setup is designed to isolate the role of the initial orbital period in determining the onset of mass transfer and the subsequent evolutionary regime.

For a list of all services and tables belonging to this service's resource, see Information on resource 'MESA Grid: Binary Evolution (M1=6.0, M2=4.0, Z=0.02)'

Overview

You can access this service using:

This service is published as follows:

local means it is listed on our front page, ivo_managed means it has a record in the VO registry.

Input Fields

The following fields are available to provide input to the service (with some renderers, some of these fields may be unavailable):

NameTable Head DescriptionUnitUCD
binary_separation Binary_separation Orbital separation solRad phys.size;src.orbital
component Component Evolutionary component (STAR1 or STAR2) N/A meta.id.part
lg_mtransfer_rate Lg_mtransfer_rate Log10 mass transfer rate solMass/yr N/A
log_g Log_g Log10 surface gravity N/A phys.gravity
log_L Log_l Log10 luminosity in Lsun units N/A phys.luminosity
log_Teff Log_teff Log10 effective temperature N/A phys.temperature.effective
m1 M1 Initial mass of primary solMass phys.mass
m2 M2 Initial mass of secondary solMass phys.mass
period Period Initial orbital period d time.period
rl_relative_overflow_1 Rl_relative_overflow_1 Roche lobe relative overflow for star 1 N/A N/A
star_age Star_age Current age of the star yr time.age
star_mass Star_mass Current stellar mass solMass phys.mass
z Z Initial metallicity N/A phys.abund.Z

Default Output Fields

The following fields are contained in the output by default. More fields may be available for selection; these would be given below in the VOTable output fields.

NameTable Head DescriptionUnitUCD
age Age Binary system age yr N/A
binary_separation Binary_separation Orbital separation solRad phys.size;src.orbital
center_c12 Center_c12 Central C12 mass fraction N/A N/A
center_h1 Center_h1 Central H1 mass fraction N/A N/A
center_he4 Center_he4 Central He4 mass fraction N/A N/A
center_mu Center_mu Central mean molecular weight N/A N/A
center_o16 Center_o16 Central O16 mass fraction N/A N/A
center_ye Center_ye Central electron fraction N/A N/A
cno Cno Log10 total luminosity for cno reaction category N/A N/A
co_core_mass Co_core_mass CO core mass solMass N/A
component Component Evolutionary component (STAR1 or STAR2) N/A meta.id.part
conv_mx1_bot Conv_mx1_bot Bottom of largest convective region (m/Mstar) N/A N/A
conv_mx1_top Conv_mx1_top Top of largest convective region (m/Mstar) N/A N/A
conv_mx2_bot Conv_mx2_bot Bottom of 2nd largest convective region (m/Mstar) N/A N/A
conv_mx2_top Conv_mx2_top Top of 2nd largest convective region (m/Mstar) N/A N/A
donor_index Donor_index Index of the donor star N/A N/A
eff_xfer_fraction Eff_xfer_fraction Effective transfer fraction N/A N/A
epsnuc_M_1 Epsnuc_m_1 Start of 1st burning zone solMass N/A
epsnuc_M_2 Epsnuc_m_2 Inner edge of 1st burning zone reaches limit solMass N/A
epsnuc_M_3 Epsnuc_m_3 Outer edge of 1st burning zone drops below limit solMass N/A
epsnuc_M_4 Epsnuc_m_4 End of 1st burning zone solMass N/A
epsnuc_M_5 Epsnuc_m_5 Start of 2nd burning zone solMass N/A
epsnuc_M_6 Epsnuc_m_6 Inner edge of 2nd burning zone reaches limit solMass N/A
epsnuc_M_7 Epsnuc_m_7 Outer edge of 2nd burning zone drops below limit solMass N/A
epsnuc_M_8 Epsnuc_m_8 End of 2nd burning zone solMass N/A
extra_jdot Extra_jdot Extra Jdot term N/A N/A
fe_core_mass Fe_core_mass Iron core mass solMass N/A
fixed_xfer_fraction Fixed_xfer_fraction Fixed transfer fraction N/A N/A
gravity Gravity Surface gravity N/A N/A
he_core_mass He_core_mass Helium core mass solMass N/A
J_orb J_orb Orbital angular momentum N/A N/A
Jdot Jdot Rate of change of orbital angular momentum N/A N/A
jdot_gr Jdot_gr Jdot due to gravitational radiation N/A N/A
jdot_ls Jdot_ls Jdot due to L-S coupling N/A N/A
jdot_mb Jdot_mb Jdot due to magnetic braking N/A N/A
jdot_missing_wind Jdot_missing_wind Jdot due to missing wind N/A N/A
jdot_ml Jdot_ml Jdot due to mass loss N/A N/A
lg_mstar_dot_1 Lg_mstar_dot_1 Log10 mass change rate star 1 solMass/yr N/A
lg_mstar_dot_2 Lg_mstar_dot_2 Log10 mass change rate star 2 solMass/yr N/A
lg_mtransfer_rate Lg_mtransfer_rate Log10 mass transfer rate solMass/yr N/A
lg_system_mdot_1 Lg_system_mdot_1 Log10 system mass change rate 1 solMass/yr N/A
lg_system_mdot_2 Lg_system_mdot_2 Log10 system mass change rate 2 solMass/yr N/A
lg_wind_mdot_1 Lg_wind_mdot_1 Log10 wind mass loss rate star 1 solMass/yr N/A
lg_wind_mdot_2 Lg_wind_mdot_2 Log10 wind mass loss rate star 2 solMass/yr N/A
log_abs_mdot Log_abs_mdot log10(abs(star_mdot)) solMass/yr N/A
log_center_P Log_center_p Log10 central pressure N/A N/A
log_center_Rho Log_center_rho Log10 central density N/A N/A
log_center_T Log_center_t Log10 central temperature N/A N/A
log_dt Log_dt log10 time_step in years yr N/A
log_g Log_g Log10 surface gravity N/A phys.gravity
log_L Log_l Log10 luminosity in Lsun units N/A phys.luminosity
log_LH Log_lh log10 power_h_burn N/A N/A
log_LHe Log_lhe log10 power_he_burn N/A N/A
log_Lnuc Log_lnuc log(LH + LHe + LZ) N/A N/A
log_LZ Log_lz log10 total burning power excluding LH and LHe N/A N/A
log_R Log_r Log10 radius in Rsun units N/A phys.size.radius
log_Teff Log_teff Log10 effective temperature N/A phys.temperature.effective
luminosity Luminosity Luminosity in Lsun units solLum phys.luminosity
m1 M1 Initial mass of primary solMass phys.mass
m2 M2 Initial mass of secondary solMass phys.mass
mass_conv_core Mass_conv_core Mass coordinate of top of convective core solMass N/A
model_number Model_number Evolutionary step number N/A N/A
model_number_1 Model_number_1 Secondary model number tracker N/A N/A
mx1_bot Mx1_bot Bottom of largest mixed region (m/Mstar) N/A N/A
mx1_top Mx1_top Top of largest mixed region (m/Mstar) N/A N/A
mx2_bot Mx2_bot Bottom of 2nd largest mixed region (m/Mstar) N/A N/A
mx2_top Mx2_top Top of 2nd largest mixed region (m/Mstar) N/A N/A
num_retries Num_retries Number of solver retries N/A N/A
num_zones Num_zones Number of zones in the model N/A N/A
period Period Initial orbital period d time.period
period_days Period_days Current binary period d time.period
point_mass_index Point_mass_index Index of the point mass companion N/A N/A
pp Pp Log10 total luminosity for pp reaction category N/A N/A
rl_1 Rl_1 Roche lobe radius of star 1 solRad N/A
rl_2 Rl_2 Roche lobe radius of star 2 solRad N/A
rl_relative_overflow_1 Rl_relative_overflow_1 Roche lobe relative overflow for star 1 N/A N/A
rl_relative_overflow_2 Rl_relative_overflow_2 Roche lobe relative overflow for star 2 N/A N/A
star_1_mass Star_1_mass Mass of star 1 solMass N/A
star_2_mass Star_2_mass Mass of star 2 solMass N/A
star_age Star_age Current age of the star yr time.age
star_mass Star_mass Current stellar mass solMass phys.mass
surf_avg_omega Surf_avg_omega Surface average angular velocity N/A N/A
surf_avg_omega_div_omega_crit Surf_avg_omega_div_omega_crit Surface average omega divided by critical omega N/A N/A
surface_c12 Surface_c12 Surface C12 mass fraction N/A N/A
surface_o16 Surface_o16 Surface O16 mass fraction N/A N/A
total_mass_h1 Total_mass_h1 Total H1 mass solMass N/A
total_mass_he4 Total_mass_he4 Total He4 mass solMass N/A
tri_alpha Tri_alpha Log10 total luminosity for tri-alpha reaction category N/A N/A
v_div_csound_surf V_div_csound_surf Velocity divided by sound speed at surface N/A N/A
v_orb_1 V_orb_1 Orbital velocity of star 1 km/s N/A
v_orb_2 V_orb_2 Orbital velocity of star 2 km/s N/A
z Z Initial metallicity N/A phys.abund.Z

VOTable Output Fields

The following fields are available in VOTable output. The verbosity level is a number intended to represent the relative importance of the field on a scale of 1 to 30. The services take a VERB argument. A field is included in the output if their verbosity level is less or equal VERB*10.

NameTable Head DescriptionUnitUCD Verb. Level
component Component Evolutionary component (STAR1 or STAR2) N/A meta.id.part 20
m1 M1 Initial mass of primary solMass phys.mass 20
m2 M2 Initial mass of secondary solMass phys.mass 20
period Period Initial orbital period d time.period 20
z Z Initial metallicity N/A phys.abund.Z 20
model_number Model_number Evolutionary step number N/A N/A 20
star_age Star_age Current age of the star yr time.age 20
star_mass Star_mass Current stellar mass solMass phys.mass 20
log_abs_mdot Log_abs_mdot log10(abs(star_mdot)) solMass/yr N/A 20
log_dt Log_dt log10 time_step in years yr N/A 20
num_zones Num_zones Number of zones in the model N/A N/A 20
mass_conv_core Mass_conv_core Mass coordinate of top of convective core solMass N/A 20
conv_mx1_top Conv_mx1_top Top of largest convective region (m/Mstar) N/A N/A 20
conv_mx1_bot Conv_mx1_bot Bottom of largest convective region (m/Mstar) N/A N/A 20
conv_mx2_top Conv_mx2_top Top of 2nd largest convective region (m/Mstar) N/A N/A 20
conv_mx2_bot Conv_mx2_bot Bottom of 2nd largest convective region (m/Mstar) N/A N/A 20
mx1_top Mx1_top Top of largest mixed region (m/Mstar) N/A N/A 20
mx1_bot Mx1_bot Bottom of largest mixed region (m/Mstar) N/A N/A 20
mx2_top Mx2_top Top of 2nd largest mixed region (m/Mstar) N/A N/A 20
mx2_bot Mx2_bot Bottom of 2nd largest mixed region (m/Mstar) N/A N/A 20
epsnuc_M_1 Epsnuc_m_1 Start of 1st burning zone solMass N/A 20
epsnuc_M_2 Epsnuc_m_2 Inner edge of 1st burning zone reaches limit solMass N/A 20
epsnuc_M_3 Epsnuc_m_3 Outer edge of 1st burning zone drops below limit solMass N/A 20
epsnuc_M_4 Epsnuc_m_4 End of 1st burning zone solMass N/A 20
epsnuc_M_5 Epsnuc_m_5 Start of 2nd burning zone solMass N/A 20
epsnuc_M_6 Epsnuc_m_6 Inner edge of 2nd burning zone reaches limit solMass N/A 20
epsnuc_M_7 Epsnuc_m_7 Outer edge of 2nd burning zone drops below limit solMass N/A 20
epsnuc_M_8 Epsnuc_m_8 End of 2nd burning zone solMass N/A 20
he_core_mass He_core_mass Helium core mass solMass N/A 20
co_core_mass Co_core_mass CO core mass solMass N/A 20
fe_core_mass Fe_core_mass Iron core mass solMass N/A 20
log_LH Log_lh log10 power_h_burn N/A N/A 20
log_LHe Log_lhe log10 power_he_burn N/A N/A 20
log_LZ Log_lz log10 total burning power excluding LH and LHe N/A N/A 20
log_Lnuc Log_lnuc log(LH + LHe + LZ) N/A N/A 20
log_Teff Log_teff Log10 effective temperature N/A phys.temperature.effective 20
luminosity Luminosity Luminosity in Lsun units solLum phys.luminosity 20
log_L Log_l Log10 luminosity in Lsun units N/A phys.luminosity 20
log_R Log_r Log10 radius in Rsun units N/A phys.size.radius 20
log_g Log_g Log10 surface gravity N/A phys.gravity 20
gravity Gravity Surface gravity N/A N/A 20
surf_avg_omega Surf_avg_omega Surface average angular velocity N/A N/A 20
surf_avg_omega_div_omega_crit Surf_avg_omega_div_omega_crit Surface average omega divided by critical omega N/A N/A 20
log_center_T Log_center_t Log10 central temperature N/A N/A 20
log_center_Rho Log_center_rho Log10 central density N/A N/A 20
log_center_P Log_center_p Log10 central pressure N/A N/A 20
center_mu Center_mu Central mean molecular weight N/A N/A 20
center_ye Center_ye Central electron fraction N/A N/A 20
center_h1 Center_h1 Central H1 mass fraction N/A N/A 20
center_he4 Center_he4 Central He4 mass fraction N/A N/A 20
center_c12 Center_c12 Central C12 mass fraction N/A N/A 20
center_o16 Center_o16 Central O16 mass fraction N/A N/A 20
surface_c12 Surface_c12 Surface C12 mass fraction N/A N/A 20
surface_o16 Surface_o16 Surface O16 mass fraction N/A N/A 20
total_mass_h1 Total_mass_h1 Total H1 mass solMass N/A 20
total_mass_he4 Total_mass_he4 Total He4 mass solMass N/A 20
pp Pp Log10 total luminosity for pp reaction category N/A N/A 20
cno Cno Log10 total luminosity for cno reaction category N/A N/A 20
tri_alpha Tri_alpha Log10 total luminosity for tri-alpha reaction category N/A N/A 20
v_div_csound_surf V_div_csound_surf Velocity divided by sound speed at surface N/A N/A 20
num_retries Num_retries Number of solver retries N/A N/A 20
model_number_1 Model_number_1 Secondary model number tracker N/A N/A 20
age Age Binary system age yr N/A 20
period_days Period_days Current binary period d time.period 20
binary_separation Binary_separation Orbital separation solRad phys.size;src.orbital 20
v_orb_1 V_orb_1 Orbital velocity of star 1 km/s N/A 20
v_orb_2 V_orb_2 Orbital velocity of star 2 km/s N/A 20
rl_1 Rl_1 Roche lobe radius of star 1 solRad N/A 20
rl_2 Rl_2 Roche lobe radius of star 2 solRad N/A 20
rl_relative_overflow_1 Rl_relative_overflow_1 Roche lobe relative overflow for star 1 N/A N/A 20
rl_relative_overflow_2 Rl_relative_overflow_2 Roche lobe relative overflow for star 2 N/A N/A 20
star_1_mass Star_1_mass Mass of star 1 solMass N/A 20
star_2_mass Star_2_mass Mass of star 2 solMass N/A 20
lg_mtransfer_rate Lg_mtransfer_rate Log10 mass transfer rate solMass/yr N/A 20
lg_mstar_dot_1 Lg_mstar_dot_1 Log10 mass change rate star 1 solMass/yr N/A 20
lg_mstar_dot_2 Lg_mstar_dot_2 Log10 mass change rate star 2 solMass/yr N/A 20
lg_system_mdot_1 Lg_system_mdot_1 Log10 system mass change rate 1 solMass/yr N/A 20
lg_system_mdot_2 Lg_system_mdot_2 Log10 system mass change rate 2 solMass/yr N/A 20
lg_wind_mdot_1 Lg_wind_mdot_1 Log10 wind mass loss rate star 1 solMass/yr N/A 20
lg_wind_mdot_2 Lg_wind_mdot_2 Log10 wind mass loss rate star 2 solMass/yr N/A 20
fixed_xfer_fraction Fixed_xfer_fraction Fixed transfer fraction N/A N/A 20
eff_xfer_fraction Eff_xfer_fraction Effective transfer fraction N/A N/A 20
J_orb J_orb Orbital angular momentum N/A N/A 20
Jdot Jdot Rate of change of orbital angular momentum N/A N/A 20
jdot_mb Jdot_mb Jdot due to magnetic braking N/A N/A 20
jdot_gr Jdot_gr Jdot due to gravitational radiation N/A N/A 20
jdot_ml Jdot_ml Jdot due to mass loss N/A N/A 20
jdot_ls Jdot_ls Jdot due to L-S coupling N/A N/A 20
jdot_missing_wind Jdot_missing_wind Jdot due to missing wind N/A N/A 20
extra_jdot Extra_jdot Extra Jdot term N/A N/A 20
donor_index Donor_index Index of the donor star N/A N/A 20
point_mass_index Point_mass_index Index of the point mass companion N/A N/A 20

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