A search for HeH+ and CH in a high-redshift QSO

I. Zinchenko, V. Dubrovich, C. Henkel

We performed a search for the HeH+ J=1-0 line (ν_{rest} = 2010.183873 GHz) and simultaneously for the CH ^2Π_{3/2}(F_2)J=3/2 - ^2Π_{1/2}(F_2)J=1/2 lines (ν_{rest}\approx 2006.8 and…