Flux densities for the four NaCl lines detected in the ALMA band 7 data. Flux densities are for an aperture with circular diameter of 1′′ centred at “VY”. The LSR velocity of 22 km s-1 is indicated by the vertical dotted line. Line blending causes the flux density for the 325 GHz NaCl v = 0J = 25−24 line to be skewed and to be too high with an expected contribution of the SiS v = 1J = 18−17 line of ~1.1 Jy (see text for more details).
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