Robustness of N2H+ as tracer of the CO snowline | Astronomy & Astrophysics (A&A)

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Table 2

Overview of models and adopted parameters.

Model	χ ^a	E_b(CO) ^b	E_b(N₂) ^b	ζ_CR^c	Photo-
		(K)	(K)	(s^-1)	desorption


CH	0.2	855	800	1.2 × 10^-17
CH-Eb1	0.2	1150	1000	1.2 × 10^-17
CH-Eb2	0.2	1150	800	1.2 × 10^-17
CH-CR1	0.2	855	800	1.0 × 10^-19
CH-CR2	0.2	855	800	5.0 × 10^-17
CH-PD	0.2	855	800	1.2 × 10^-17	yes
CH-χ0.8	0.8	855	800	1.2 × 10^-17

Notes.

^(a)

Large grain settling parameter.

^(b)

Binding energy.

^(c)

Cosmic ray ionization rate.

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