Radiative association of He+2 revisited | Astronomy & Astrophysics (A&A)

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Table 1

Molecular characteristics of the potential energy curves used in the cross-section calculations of the radiative association.

State	R _e			▵ E
	(a₀)	(cm^-1)	(cm^-1)	(eV)

	2.042^a	19 954.583^a	19 113.978^a	0
	8.718	17.516	8.185	0
	6.837	9 172.316	9024.917	19.8176^b
	15.358	733.800	699.762	20.6164^b

Notes. R_e is the position of the global minimum (equilibrium distance), is the dissociation energy from the potential global minimum, is the dissociation energy from the lowest rovibrational state, ▵ E is the energy gap between the corresponding dissociation limits.

^(a)

The Born-Oppenheimer potential energy curve from Tung et al. (2012) was used for the state.

^(b)

Experimental values from Ralchenko et al. (2010) were used for ▵ E.

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