
doi: 10.1139/p75-263
Spectral line identification studies have been carried out at 12 Å/mm for four peculiar helium stars in the Orion Belt Region and two standard stars. HD 36 526, HD 37 140, HD 37 321, and HD 37 479 (σ Orionis E) are compared with the sharp lined MK standards, ν Ononis (B3 V) and γ Lyrae (B9 III). The first two program stars have weak helium lines for their colors and also some features similar to those found in the peculiar A stars. This supports the contention that the weak helium line stars are hot analogs of the Ap stars.
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