Forming pressure traps at the snow line to isolate isotopic reservoirs in the absence of a planet

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Volume 652 (August 2021)

A&A, 652 (2021) A35

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Table 2

Summary of the results obtained for six simulations with Σ_a = 1000 kg m⁻².

Σ_a = 1000 kg m⁻²	S t = 0.01	S t = 0.02	S t = 0.05	S t = 0.075	S t = 0.1	S t = 0.2
v_i	−0.95 m s⁻¹	−1.74 m s⁻¹	−4.11 m s⁻¹	−6.06 m s⁻¹	−8.0 m s⁻¹	−15.3 m s⁻¹
v_g	−0.091 m s⁻¹	−0.091 m s⁻¹	−0.091 m s⁻¹	−0.091 m s⁻¹	−0.091 m s⁻¹	−0.091 m s⁻¹
v_i∕v_g	10.42	19.1	44.9	66.3	87.5	168.5
F_i∕F_g	0.1	0.2	0.45	0.67	0.88	1.6
Pressure bump?	NO	NO	NO	YES	YES	YES
Time PB formation				290 Kyr	114 Kyr	21 Kyr

Notes. Only simulations with a pebble Stokes number >0.075 lead to formation of a pressure bump. Simulations with S t < 0.075 do not lead to a pressure bump formation up to 8.5 Myr of evolution time. “Time of PB formation” is the time at which the pressure maximum appears.

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