Plasma rate coefficients of Be-like Ar¹⁴⁺ as a function of the electron temperature. The solid red line is the experimentally derived ΔN = 0 DR and TR rate coefficients. The theoretical results deduced from the AUTOSTRUCTURE code for ΔN = 0 DR and for TR are shown as a dotted black line and a dashed–dotted blue line, respectively. The calculated sum of DR and TR is shown as a short-dashed red line. The experimentally derived field-ionization-free plasma rate coefficient is shown as a gray area. The approximate temperature ranges where Ar¹⁴⁺ is expected to form in photoionized plasmas and collisionally ionized plasmas are indicated by vertical dashed bars and associated arrows (Kallman & Bautista 2001; Bryans et al. 2009).