Spectra for stars toward the Cohen Stream. Flux units (f.u.) are 10⁻¹⁶ ergs cm⁻² s⁻¹ Å⁻¹. Left: Ca II K spectra (histograms) and continuum fits (solid lines); middle: Ca II H spectra and continua (note that the left flux scale is valid only for Ca II K); right: H I 21 cm spectra. One star is given per row, with the name and distance given in the top left corner of the K and H panels. Distances are preceded by ">" for lower limits and by "<" for upper limits. Distances in brackets show that the detection limit is worse than the expected equivalent width, or there are too many stellar lines. Labels [Ca II(*) and H(*)] show the positions of stellar absorption lines. Vertical lines give the velocities of the H I components. Triangles and numbers in each Ca II panel give the shape of the expected absorption line, the expected equivalent width, and the 3 σ detection limit or the detected equivalent width (a "0" means that there is a blended stellar line).