Table 2 The effects of Gauss–Bonnet coupling constant \(\alpha \) to the accretion mechanism, shock cones, and physical interpretation are summarized. D represents decreasing while I represents increasing. SS, SC, PD stand for Steady State, Shock Cone, and Power Mode, respectively

From: Bondi–Hoyle accretion around the non-rotating black hole in 4D Einstein–Gauss–Bonnet gravity

   Time to reach the SS   
\(\alpha = -12\) \(\Longleftarrow (I)\) \(\alpha = 0\) \(\Longleftarrow (I)\) \(\alpha < 1\)
   Density inside the SC   
\(\alpha = -12\) \(\Longleftarrow (D)\) \(\alpha = 0\) \(\Longleftarrow (I)\) \(\alpha < 1\)
   Max. PD after saturation   
\(\alpha = -12\) \(\Longleftarrow (D)\) \(\alpha = 0\) \(\Longleftarrow (D)\) \(\alpha < 1\)
   The shock location   
\(\alpha = -12\) \(\Longleftarrow (D)\) \(\alpha = 0\) \(\Longleftarrow (D)\) \(\alpha < 1\)