SIMBAD references

I report the detection of interstellar Cai and CH at the velocity of the previously reported variable absorption component towards κ Velorum (HD 81188). The very high spectral resolution (R ~ 900 000) has resolved the intrinsic line profiles, yielding a kinetic temperature of T_k=190⁺¹⁷⁰_–150K, and a line-of-sight tubulent velocity of v_t=0.26^+0.08_–0.13km.s^–1, for the densest material. The Cai/Caii ratio implies a spatial density of n_H≳10³ cm^–3, although this may considerably underestimate the density in the variable region itself. The CH column density suggests a path-length of ∼10² to 10³ au, supporting suggestions that variable interstellar components such as this are formed in extended structures (sheets or filaments) aligned with the line of sight.