OH emission associated with early-type stars

Astronomy and Astrophysics – Astronomy

Scientific paper

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Early Stars, Hydroxyl Emission, Line Spectra, Stellar Envelopes, Stellar Spectra, Emission Spectra, Hot Stars, Microwave Emission, Radio Astronomy, Stellar Evolution, Velocity Distribution

Scientific paper

In a search for OH emission in 38 early-type emission-line stars (including 16 Herbig pre-main sequence stars and 6 symbiotic stars), emission was detected for the two objects, M 1-92 and HD 20075, and was probably detected for four other stars. The spectrum of M 1-92 resembles that of the unique source OH 0739-14; the large velocity spread of the OH emission is interpreted in terms of rotation in a disk shaped envelope.

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