&fortin

  dtemp = 1.e9
  x_half_max = 1.048d4
  x_half_width = 2048.d0

  nx_model = 1024

  dens_base = 3.43e6

  T_star = 5.d7
  T_hi = 2.d8
  T_lo   = 1.d7

  H_star = 5000.d0
  atm_delta  = 100.0

  fuel1_name = "helium-4"
  fuel1_frac = 1.0d0

  ash1_name  = "iron-56"
  ash1_frac = 1.0d0

  low_density_cutoff = 1.d-4

/

&sponge

  sponge_upper_density = 1.d2
  sponge_lower_density = 1.d0
  sponge_timescale     = 1.d-7

/


&extern

  rtol_spec = 1.d-8
  atol_spec = 1.d-8
/