The kinetic temperature of a molecular cloud at redshift 0.7: Ammonia in the gravitational lens B0218+357

C. Henkel, N. Jethava, A. Kraus +6

Using the Effelsberg 100-m telescope, absorption in the (J,K) = (1,1), (2,2) and (3,3) inversion lines of ammonia (NH_3) was detected at a redshift of z = 0.6847 toward the gravita…