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OH/IR star color mimics with S(25) > 100 Jy

Published online by Cambridge University Press:  25 May 2016

B. M. Lewis
B. M. Lewis*
Affiliation:
Arecibo Observatory, Puerto Rico

Extract

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O-rich circumstellar dust shells that do not exhibit 1612 MHz masers (Lewis 1992), despite appropriate IR colors and 1612 MHz sensitivity, are known as OH/IR star color mimics. Since previous studies of mimics depend on samples with a limited IR spectral type and color range, we use the data collected for poster III-8 to identify the mimics in an all-sky sample of bright IRAS sources with S(25) > 100 Jy and (60-25)μm < 0.0: this expands on Gaylard et al. (1989), and benefits from the greater quantity of maser data now and a wider IR color range.

Type
V. From AGB to Planetary Nebulae
Information
Symposium - International Astronomical Union , Volume 180: Planetary Nebulae , 1997 , pp. 355
Copyright
Copyright © Kluwer 1997 

References

Gaylard, M. J., et al., 1989, MNRAS, 236, 247.CrossRefGoogle Scholar
Lewis, B. M., 1992, Ap. J., 396, 251.CrossRefGoogle Scholar