Article contents
The OH Circumstellar Maser in Late-Type Stars
Published online by Cambridge University Press: 14 August 2015
Extract
A recent investigation based upon the OH luminosity distribution (Nguyen-Q-Rieu et al. 1979) has shown that Type I OH sources associated with Mira variables (OH Miras) are weak OH sources and are therefore only detected within ∼1 kpc from the Sun. Type II OH-Miras, which are more intense and rarer than Type I OH-Miras, are probably more distant objects. The group of unidentified Type II OH-IR sources probably consists of Type II OH-Miras of high OH luminosity. The IR colour index, which is usually higher for Type II sources, suggests that they have a colder and denser dust shell.
- Type
- Research Article
- Information
- Symposium - International Astronomical Union , Volume 87: Interstellar Molecules , 1980 , pp. 549 - 550
- Copyright
- Copyright © Reidel 1980
References
- 2
- Cited by