specifications for starting model
Initial mass of star 1 in Msun units. Not used when loading a saved model.
same caveats as
initial_mass in star/defaults/controls.defaults apply
m1 = 1.0d0
Initial mass of star 2 in Msun units. Not used when loading a saved model.
same caveats as
initial_mass in star/defaults/controls.defaults apply
m2 = 0.8d0
Initial orbital period in days.
initial_period_in_days = 0.5d0
Initial separation measured in Rsuns. Only used when
initial_period_in_days < 0
initial_separation_in_Rsuns = 100
Initial eccentricity of the system
initial_eccentricity = 0.0d0
controls for output
Name of file for binary output
history_name = 'binary_history.data'
append an entry to the history.data file when
mod(model_number, history_interval) = 0.
history_interval = 5
If true, then the columns from the
binary_history are also included
in each of the stars history files.
NOTE: if .false., then pgstar cannot access binary data
append_to_star_history = .true.
Directory for binary output
log_directory = '.'
Format for double, int and text in binary output
history_dbl_format = '(1pes32.16e3, 1x)' history_int_format = '(i32, 1x)' history_txt_format = '(a32, 1x)'
These overwrite the values of
photo_directory for each
star, so that profiles are outputted simultaneously
photo_interval = 50 photo_digits = 3 photo_directory = 'photos'
write info to terminal when
mod(model_number, terminal_interval) = 0.
terminal_interval = 1
output the log header info to the terminal when
mod(model_number, write_header_frequency*terminal_interval) = 0.
write_header_frequency = 10
if not empty, output terminal info to this file in addition to terminal.
this does not capture all of the terminal output – just the common items.
it is intended for use in situations where you cannot directly see the terminal
output such as when running on a cluster. if you want to be able to monitor
the progress for such cases, you can set
extra_binary_terminal_output_file = 'log'
and then do tail -f log to view the terminal output as it is recorded in the file.
extra_binary_terminal_output_file = ''
The terminal output during evolution includes a short string for the ‘dt_limit’. This is to give you some indication of what is limiting the time steps. Here’s a dictionary mapping those terminal strings to the corresponding control parameters. These only include limits from binary, to see the limits from star refer to star/default/controls.defaults
terminal output related parameter 'b_companion' timestep limited by companion 'b_RL' fr 'b_jorb' fj 'b_envelope' fm 'b_separation' fa 'b_eccentricity' fe 'b_deltam' fdm
similarly to star/time_delta_coeff, this time_delta_coeff can be scaled to force smaller timestep for binary timestep controls
time_delta_coeff = 1d0
Timestep controls based on relative changes. After each step an upper limit is set on the timestep based on changes on different quantities. If the quantity is X and the change in one timestep dX, then this limit is given by
dt_next_max = dt * fX*abs(X / dX)
each of these controls deals with the following:
fm: envelope mass
fa: binary separation
fr: change in (r-rl)/rl
fj: change in orbital angular momentum
fe: change in orbital eccentricity
hard limits are strictly enforced, if a timestep exceeds that limit then a retry is made.
fm = 0.01d0 fm_hard = -1d0 fa = 0.01d0 fa_hard = 0.02d0 fr = 0.10d0 fr_hard = -1d0 fj = 0.001d0 fj_hard = 0.01d0 fe = 0.01d0 fe_hard = -1d0
Limits to timestep controls give by fm, fr and fe. As these three quantities evolve naturally to zero, following strictly the timestep limit given by fX would reduce timesteps infinetely. These fX_limit avoid this problem by computing the limit to the timestep as
dt_next_max = dt * fX*abs(max(abs(X),fX_limit) / dX)
If any of these
fX_limit is smaller than zero it is ignored.
fm_limit = 1d-3 fr_limit = 1d-2 fe_limit = 1d-1
Minimum timestep limit allowed for the fr control in years.
fr_dt_limit = 10d0
Limits the timestep based on the fractional mass change of either component.
fdm = 0.005d0 fdm_hard = 0.01d0
Weight factor to average
max_timestep with old one (in log space) as in
dt_next_max = 10**(dt_softening_factor*log10(dt_next_max_old) + & (1-dt_softening_factor)*log10(dt_next_max))
dt_next_max_old is the limit used in the previous step. This is meant
to avoid large changes in dt. Values must be < 1 and >= 0, 1 meaning constant dt,
0 meaning no softening
dt_softening_factor = 0.5d0
Allows binary to set
varcontrol_target for each star depending on the
stage of evolution. Ignored if < 0. Each one controls the following stages,
varcontrol_targetfor both stars during mass transfer
from a core hydrogen burning star.
varcontrol_targetfor both stars during mass transfer
from a core hydrogen depleted star.
varcontrol_targetfor a star that has not depleted core H.
varcontrol_targetfor a star that has depleted core H.
varcontrol_case_a = -1d0 varcontrol_case_b = -1d0 varcontrol_ms = -1d0 varcontrol_post_ms = -1d0
When a retry happens due to the hard limit in angular momentum changes, or because the timestep produced a negative j, further multiply the timestep by this factor for the next step. This can avoid multiple retries and waste of time.
dt_reduction_factor_for_j = 0.1d0
when to stop
terminate evolution if (r-rl)/rl is bigger than this for accretor
accretor_overflow_terminate = 0.0d0
terminate evolution if first model of run is overflowing
terminate_if_initial_overflow = .true.
terminate evolution if there is overflow through the second Lagrangian point Amount of overflow needed to reach L2 implemented as in Marchant et al. (2016), A&A, 588, A50
terminate_if_L2_overflow = .false.
mass transfer controls
Transfer efficiency controls. alpha, beta, delta and gamma parameters as described in Tauris & van den Heuvel 2006 section 16.4.1, transfer efficiency is given by 1-alpha-beta-delta.
These only affect mass that is lost from the donor due to mass transfer, winds from each star will carry away angular momentum from the vicinity of each even when transfer efficiency is unity. Each of these represent the following:
alpha : fraction of mass lost from the vicinity of the donor as fast wind
beta : fraction of mass lost from the vicinity of the accretor as fast wind
delta : fraction of mass lost from circumbinary coplanar toroid
gamma : radius of the circumbinary coplanar toroid is
gamma**2 * orbital_separation
mass_transfer_alpha = 0.0d0 mass_transfer_beta = 0.0d0 mass_transfer_delta = 0.0d0 mass_transfer_gamma = 0.0d0
Limit accretion using
mdot_edd. The current implementation is intended for use with
black hole accretors, as in e.g. Podsiadlowski, Rappaport & Han (2003), MNRAS, 341, 385.
For other accretors
mdot_edd should be set with
use_this_for_mdot_edd, the hook
use_other_mdot_edd, or by appropriately setting
Note: MESA versions equal or lower than 8118 used eta=1 and did not correct
the accreted mass for the energy lost by radiation.
If accreted material radiates an amount of energy equal to
then accretion is assumed to be limited to the Eddington luminosity,
Ledd = 4*pi*cgrav*Mbh*clight/kappa
which results in the Eddington mass-accretion rate
mdot_edd = 4*pi*cgrav*Mbh/(kappa*clight*eta)
the efficiency eta is determined by the properties of the last stable circular orbit, and for a BH with no initial spin it can be expressed in terms of the initial BH mass Mbh0 and the current BH mass,
eta = 1-sqrt(1-(Mbh/(3*Mbh0))**2)
for Mbh < sqrt(6) Mbh0. For BHs with initial spins different from zero, an effective Mbh0 can be computed, corresponding to the mass the black hole would have needed to have with zero spin to reach the current mass and spin.
limit_retention_by_mdot_edd = .false.
If .true., then the opacity for
mdot_edd is computed as 0.2*(1+X)
If .false., the opacity of the outermost cell of the donor is used
use_es_opacity_for_mdot_edd = .true.
mdot_edd_eta, if negative, eta will be computed consistently as material is accreted.
Values should be between ~0.06-0.42, the minimum corresponding to a BH with spin parameter a=0, and the maximum to a=1.
use_this_for_mdot_edd_eta = -1
If true, then reduce the increase in mass of the BH to account for the radiated energy
so that in a timestep
delta_Mbh = (1-eta)*mass_transfer_rate*dt
use_radiation_corrected_transfer_rate = .true.
Initial spin parameter of the black hole “a”. Must be between 0 and 1. Evolution of BH spin is done with eq. (6) of King & Kolb (1999), MNRAS, 305, 654
initial_bh_spin = 0
mdot_edd in Msun/yr, ignored if negative
use_this_for_mdot_edd = -1
How to compute mass transfer. Options are:
“Ritter” : Ritter 1988, A&A, 202, 93
“Kolb” : Optically thick overflow of Kolb & Ritter 1990, A&A, 236, 385
- “roche_lobe”Set mass transfer rate such that the donor remains inside
its Roche lobe. Only works implicitly.
- “contact”Extends the roche_lobe scheme to include contact systems as in
Marchant et al. (2016), A&A, 588, A50
mdot_scheme = 'Ritter'
explicit mass transfer computation.
MESA can compute mass transfer rates either explicitly (at the beggining
of the step) or implicitly (iterating the solution until the mass transfer
rate matches the value computed at the end of the step). The explicit method
is used if
max_tries_to_achieve <= 0.
Average the explicit mass transfer rate computed with the old in order to smooth large changes.
mass_transfer = mass_transfer_old * cur_mdot_frac + (1-cur_mdot_frac) * mass_transfer
cur_mdot_frac = 0.5d0
Limit the explicit mass transfer rate to
max_explicit_abs_mdot, in Msun/secyer
max_explicit_abs_mdot = 1d-7
implicit mass transfer computation.
The implicit method will modify the mass transfer rate and redo the step until
it either finds a solution, or the number of tries goes above
max_tries_to_achieve <= 0 the explicit method is used.
max_tries_to_achieve = 20
Method use to solve for mass transfer. The solver first attempts to increase or reduce the mass transfer rate used through the step until finding an upper and lower limit to it. This controls what is done after that point. Options are:
- “cubic”Given an upper and lower limit, plus a new try in between,
the root of the equation is estimated by using a cubic matching the three points.
“bisect” : Simply takes the average of the boundaries for the next try
“both” : Alternates between cubic and bisect each iteration
solver_type = 'both'
Tolerance for which a solution is considered valid. For the Ritter and Kolb schemes if we call mdot the mass transfer rate used for the step, and mdot_end the one computed at the end of it, a solution is valid if
abs((mdot-mdot_end)/mdot_end) < b% implicit_scheme_tolerance
For the roche_lobe scheme, a solution will be considered valid if
-implicit_scheme_tolerance < (r-rl)/rl < 0
When using the roche_lobe scheme smaller values of order 1d-3 or smaller are recommended.
implicit_scheme_tolerance = 1d-2
During the implicit scheme the solution is bracketed between a minimum and a maximum value mdot_hi and mdot_lo. Even if the desired tolerance is not achieved, the solution is accepted if the difference between abs(mdot_hi-mdot_lo) is smaller than implicit_scheme_tiny_factor*min(abs(mdot_hi),abs(mdot_lo))
implicit_scheme_tiny_factor = 1d-6
The implicit scheme works by adjusting the mass transfer rate from the previous
step until it finds a solution. If the mass transfer needs to increase/reduce after
a try, then it is multiplied/divided by
the initial value for this parameter, however, since at certain points the mass
transfer rate will increase steeply and at others remain mostly constant from step
to step, MESA adjusts the value of the change factor to make it easier to find
solutions. Whenever the mass transfer rate changes from the previous value, MESA
will modify the
change_factor according to:
if(mass_transfer_rate < mass_transfer_prev) then change_factor = change_factor*(1.0-implicit_lambda) & + implicit_lambda*(1+change_factor_fraction*(mass_transfer_rate/mass_transfer_prev-1)) else change_factor = change_factor*(1.0-implicit_lambda) & + implicit_lambda*(1+change_factor_fraction*(mass_transfer_prev/mass_transfer_rate-1)) change_factor = change_factor*(1.0-implicit_lambda) & + implicit_lambda*(1+change_factor_fraction*(mass_transfer_rate/mass_transfer_prev-1)) end if
implicit_lambda = 0 will keep the change factor constant.
initial_change_factor = 1.5d0 change_factor_fraction = 0.9d0 implicit_lambda = 0.25d0
Maximum and minimum values for the
max_change_factor = 1.5d0 min_change_factor = 1.05d0
If after every
num_tries_for_increase_change_factor iterations the implicit scheme does not have upper
and lower bounds for the mass transfer rate, multiply
change_factor_increase. Ignored if
num_tries_for_increase_change_factor < 1. Increase is limited to
num_tries_for_increase_change_factor = 20 change_factor_increase = 1.1d0
When using the
roche_lobe scheme, if the donor overflows for the first time
starting_mdot (in Msun/secyer) as an initial guess for the mass transfer rate.
starting_mdot = 1d-12
When using the
roche_lobe scheme, if mass transfer rate is below
(in Msun/secyer) and the donor is not overflowing its roche lobe, assume detachment
and stop mass transfer.
roche_min_mdot = 1d-16
For any choice except for the
roche_lobe scheme mass transfer will be computed explicitly
until the explicit computation of mdot is >
min_mdot_for_implicit (in Msun/secyer),
max_tries_to_achieve > 0. This is to avoid spending many iterations when the stars
are detached and the explicit calculation gives very low values of mdot.
min_mdot_for_implicit = 1d-16
Limit the implicit mass transfer rate to
max_implicit_abs_mdot, in Msun/secyer
max_implicit_abs_mdot = 1d99
Set true to see info about the iterations to compute mass transfer from RLOF
report_rlo_solver_progress = .false.
Tidal wind enhancement
Use the Tout & Eggleton mechanism to tidally enhance the wind mass loss from one or both components according to:
Mdot_w = Mdot_w * ( 1 + B_wind * min( (R/RL)^6, 0.5^6 ) )
Tout & Eggleton 1988,MNRAS,231,823 (eq. 2)
“_1” refers to first star, “_2” to the second one.
do_enhance_wind_1 = .false. do_enhance_wind_2 = .false.
B_wind parameter from the previous equation. Default value is
taken from Tout & Eggleton 1988,MNRAS,231,823
“_1” refers to first star, “_2” to the second one.
tout_B_wind_1 = 1d4 tout_B_wind_2 = 1d4
Wind mass accretion
transfer part of the mass lost due to stellar winds from the mass losing component to its companion. Using the Bondi-Hoyle mechanism. “_1” refers to first star, “_2” to the second one.
do_wind_mass_transfer_1 = .false. do_wind_mass_transfer_2 = .false.
Bondi-Hoyle accretion parameter for each star. The default for alpha is 3/2 taken from Hurley et al. 2002, MNRAS, 329, 897, in agreement with Boffin & Jorissen 1988, A&A, 205, 155. The default for beta is 1/8=0.125 in accordance for results of cool supergiants from Kucinskas A., 1999, Ap&SS, 262, 127 “_1” refers to first star, “_2” to the second one.
wind_BH_alpha_1 = 1.5d0 wind_BH_alpha_2 = 1.5d0 wind_BH_beta_1 = 1.25d-1 wind_BH_beta_2 = 1.25d-1
Upper limit on the wind transfer fraction for star * “_1” refers to first star, “_2” to the second one.
max_wind_transfer_fraction_1 = 0.5d0 max_wind_transfer_fraction_2 = 0.5d0
orbital jdot controls
Include gravitational wave radiation in jdot
do_jdot_gr = .true.
Include loss of angular momentum via mass loss. The parameters
mass_transfer_* determine the fractions of mass lost from the vincinity
of the donor, the accretor, or a circumbinary coplanar toroid.
do_jdot_ml = .true.
Fix jdot such that the total angular momentum of the system is conserved, except for loses due to other jdot mechanisms, or angular momentum loss from winds. This is meant to take care of L-S coupling due to tides.
do_jdot_ls = .true.
Usually MESA computes stellar AM loss due to winds by taking the angular momentum from
the removed layers of the star. However, when mass transfer is included, wind mass
loss and mass accretion are added up, and only the remainder, if corresponding to
net mass loss, contributes to stellar AM loss.
jdot_missing_wind compensates for this,
by removing from the orbit an amount of angular momentum equal to the mass lost
that does not contribute to stellar AM loss, times the specific angular momentum
at the surface.
do_jdot_missing_wind = .false.
Include magnetic braking as in Rappaport, Verbunt, and Joss. apj, 275, 713-731. 1983.
do_jdot_mb = .true.
If true, the contribution to jdot from magnetic braking of the accretor is also taken into account.
include_accretor_mb = .false.
gamma exponent for magnetic braking.
magnetic_braking_gamma = 3.0d0
If true keep magnetic braking even when radiative core goes away.
keep_mb_on = .false.
Conditions for magnetic braking to operate. Magnetic braking is turned off if any of these do not apply. The mass fraction of the convective envelope has to be > jdot_mb_min_qconv_env. The mass fraction of the convective envelope has to be < jdot_mb_max_qconv_env. The mass fraction of the convective core has to be < jdot_mb_max_qconv_core. Here by mass fraction we refer to the mass of the respective zone divided by the total mass of the star. To compute the mass in the envelope we add all convective layers down to jdot_mb_qlim_for_check_conv_env, and keep adding layers downwards until we reach a non-convective zone. This is because the very outermost cell is likely radiative. A similar thing is done for the core with jdot_mb_qlim_for_check_rad_core. For full details check binary_jdot.f90.
jdot_mb_min_qconv_env = 1d-6 jdot_mb_max_qconv_env = 0.99d0 jdot_mb_max_qconv_core = 1d-2 jdot_mb_qlim_for_check_rad_core = 1d-3 jdot_mb_qlim_for_check_conv_env = 0.999d0
If jdot_mb_scale_for_low_qconv_env is .true., scale down jdot_mb if mass fraction of the convective envelope is below jdot_mb_mass_frac_for_scale. (Podsiadlowski et al. 2002, The Astrophysical Journal, Volume 565, Issue 2, pp. 1107-1133)
jdot_mb_scale_for_low_qconv_env = .true. jdot_mb_mass_frac_for_scale = 0.02d0
Multiply total jdot by this factor.
jdot_ls is not affected by this.
jdot_multiplier = 1d0
rotation and sync controls
If true, compute accretion of angular momentum following A.3.3 of de Mink et al. 2013, ApJ, 764, 166. Otherwise, incoming material is assumed to have the specific angular momentum of the surface of the accretor.
do_j_accretion = .false.
If true, apply tidal torque to the star
do_tidal_sync = .false.
Timescale for orbital synchronisation. “_1” refers to first star, “_2” to the second one. Options are:
“Instantaneous” : Keep the star synced to the orbit.
“Orb_period” : Sync in the timescale of the orbital period.
- “Hut_conv”Sync timescale following Hurley et al. 2002, MNRAS, 329, 897
for convective envelopes.
- “Hut_rad”Sync timescale following Hurley et al. 2002, MNRAS, 329, 897
for radiative envelopes.
“None” : No sync for this star.
sync_type_1 = 'Hut_conv' sync_type_2 = 'Hut_conv'
Where angular momentum is deposited for synchronization. “_1” refers to first star, “_2” to the second one. Options are:
“Uniform” : Each layer is synced independently given the sync timescale.
sync_mode_1 = 'Uniform' sync_mode_2 = 'Uniform'
Tidal strength factor. Synchronisation and circularisation timescales are divided by this. “_1” refers to first star, “_2” to the second one.
Ftid_1 = 1d0 Ftid_2 = 1d0
Relax rotation of star to orbital period at the beggining of evolution. “_1” refers to first star, “_2” to the second one.
do_initial_orbit_sync_1 = .false. do_initial_orbit_sync_2 = .false.
tidal_reduction accounts for the reduction in the effectiveness of convective
damping of the equilibrium tide when the tidal forcing period is less than the
convective turnover period of the largest eddies. It corresponds to the exponent
in eq. (32) of Hurley et al. 2002, MNRAS, 329, 897
tidal_reduction = 1 follows Zahn(1966, 1989), while
tidal_reduction = 2 follows
Goldreich & Nicholson (1977).
tidal_reduction = 2.0d0
If true, apply tidal circularisation
do_tidal_circ = .false.
Mechanism for circularisation. Options are: “_1” refers to first star, “_2” to the second one.
- “Hut_conv”Circ timescale following Hurley et al. 2002, MNRAS, 329, 897
for convective envelopes.
- “Hut_rad”Circ timescale following Hurley et al. 2002, MNRAS, 329, 897
for radiative envelopes.
“None” : no tidal circularisation
circ_type_1 = 'Hut_conv' circ_type_2 = 'Hut_conv'
Flag to turn on Soker eccentricity enhancement
use_eccentricity_enhancement = .false.
Maximum absolute value for tidal edot (in 1/s). If the computed tidal edot goes above this, then it is fixed at this maximum
max_abs_edot_tidal = 1d-6
Maximum absolute value for eccentricity enhancement (in 1/s). If the computed edot goes above this, then it is fixed at this maximum
max_abs_edot_enhance = 1d-6
If after a step
eccentricity < min_eccentricity, then fix it at this value
min_eccentricity = 0.0d0
If after a step
eccentricity > max_eccentricity, then fix it at this value
max_eccentricity = 0.99d0
For phase dependent processes, the orbit is divided into this number of steps in the true anomaly, to integrate through a full orbit and obtain the secular changes
anomaly_steps = 500
Flag to turn on irradiation of the donor due to accretion onto a compact object.
accretion_powered_irradiation = .false.
Energy from irradiation will be deposited in the outer
4*Pi*R^2*col_depth_for_eps_extra grams of the star.
col_depth_for_eps_extra = -1
Flag to turn on irradiation based on the luminosity of the accretor and binary
evolve_both_stars = .true. in binary_job inlist.
use_accretor_luminosity_for_irrad = .false.
irrad_flux_at_std_distance > 0 then irradiation flux is computed as
s% irradiation_flux = b% irrad_flux_at_std_distance * & (b% std_distance_for_irradiation/b% separation)**2
irrad_flux_at_std_distance = -1 std_distance_for_irradiation = -1
Limit irradiation by this amount.
max_F_irr = 5d12
common envelope controls (EXPERIMENTAL, DON’T USE)
Common envelope efficiency factor
CE_alpha = 1d0
Common envelope thermal efficiency factor
CE_alpha_th = 1d0
Efficiency at which the change of energy in the core of the star contributes to envelope ejection.
CE_alpha_core = 0d0
Upper mass loss rate imposed during CE in Msun/yr
CE_mass_loss_rate_high = 1d-1
Lower mass loss rate imposed during CE in Msun/yr
CE_mass_loss_rate_low = 1d-6
Consider the CE phase terminated when (r-rl)/rl < -CE_rel_rlo_for_detachment Between (r-rl)/rl = 0d0 and (r-rl)/rl = -CE_rel_rlo_for_detachment the mass loss rate is adjusted between CE_mass_loss_rate_high and CE_mass_loss_rate_low.
CE_rel_rlo_for_detachment = 0.02d0
During CE, if the star spends this amount of time detached, terminate CE even if CE_rel_rlo_for_detachment has not been reached. If set to a large number mass loss will only stop when the star definetely wants to detach. If set to a low number system will likely switch to stable mass transfer.
CE_years_detached_to_terminate = 1d-1
If true, initiate a common envelope phase when max_implicit_abs_mdot is reached
CE_begin_at_max_implicit_abs_mdot = .false.
If the absolute difference between central and surface mass fractions of H and He is below this, terminate the simulation. This is to stop the simulation once the entire envelope has been removed
CE_xa_diff_to_terminate = 0.01d0
Terminate if, for the current orbital separation, the radius at the point where CE_xa_diff_to_terminate applies would overflow its Roche lobe
CE_terminate_when_core_overflows = .true.
Terminate the simulation if the period is below this during CE used to terminate the simulation early in cases where a merger would be expected.
CE_min_period_in_minutes = 5d0
Recombination energy for ionized hydrogen will be multiplied by this factor when computing the energy.
CE_energy_factor_HII_toHI = 1d0
Recombination energy for singly ionized helium will be multiplied by this factor when computing the energy.
CE_energy_factor_HeII_toHeI = 1d0
Recombination energy for doubly ionized helium will be multiplied by this factor when computing the energy.
CE_energy_factor_HeIII_toHeII = 1d0
Dissociation energy for molecular hydrogen will be multiplied by this factor when computing the energy.
CE_energy_factor_H2 = 0d0
For comparison to rapid-pop-synth, if this is larger than zero, then compute the binding energy from this value of lambda rather than by integrating through the envelope
CE_fixed_lambda = -1d0
keep star 1 as donor, even if accretor is closer to filling roche lobe
keep_donor_fixed = .true.
Do not change donor if mass transfer is larger than this (given in Msun/secyer). Avoids erratic changes when both stars are filling their roche loches.
mdot_limit_donor_switch = 1d-20
Logicals to deploy the use_other routines.
use_other_rlo_mdot = .false. use_other_check_implicit_rlo = .false. use_other_implicit_function_to_solve = .false. use_other_tsync = .false. use_other_sync_spin_to_orbit = .false. use_other_mdot_edd = .false. use_other_adjust_mdots = .false. use_other_accreted_material_j = .false. use_other_jdot_gr = .false. use_other_jdot_ml = .false. use_other_jdot_ls = .false. use_other_jdot_missing_wind = .false. use_other_jdot_mb = .false. use_other_extra_jdot = .false. use_other_binary_wind_transfer = .false. use_other_edot_tidal = .false. use_other_edot_enhance = .false. use_other_extra_edot = .false. use_other_CE_init = .false. use_other_CE_rlo_mdot = .false. use_other_CE_binary_evolve_step = .false. use_other_CE_binary_finish_step = .false. use_other_e2 = .false.