Infrared Stars with Strong 1665/1667-MHz OH Microwave Emission
W.J. Wilson, Philip R. Schwartz, Gerry X. Neugebauer, P. M. Harvey, E. E. Becklin
Abstract
W.J. Wilson, Philip R. Schwartz, Gerry X. Neugebauer, P. M. Harvey, E. E. Becklin
Abstract
Microwave and infrared observations are presented of seven stars which have strong infrared and 1665- and 1667-MHz mainAine OH emission. The sources were selected by the fact that their I665/1667-MHz OH emission is stronger than any 1612-MHz OH emission. Five of these sources have associated H2O microwave emission. The sources are associated with M-type long-period variable stars and generally show only a small excess infrared radiation from 3 to 20 above that expected from the photosphere. The data are suggestive that both 1665/1667-MHz and 1612-MHz OH/IR stars form a continuous sequence in their intrinsic OH luminosities and their infrared properties.
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Microwave and infrared observations are presented of seven stars which have strong infrared and 1665- and 1667-MHz mainAine OH emission. The sources were selected by the fact that their I665/1667-MHz OH emission is stronger than any 1612-MHz OH emission. Five of these sources have associated H2O microwave emission. The sources are associated with M-type long-period variable stars and generally show only a small excess infrared radiation from 3 to 20 above that expected from the photosphere. The data are suggestive that both 1665/1667-MHz and 1612-MHz OH/IR stars form a continuous sequence in their intrinsic OH luminosities and their infrared properties.
Key concepts: Physics, Astrophysics, Infrared, Stars, Microwave, Photosphere, Astronomy, Spectral line