Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989aj.....98.2182g&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 98, Dec. 1989, p. 2182-2202. Research supported by NSERC.
Astronomy and Astrophysics
Astronomy
30
Astronomical Spectroscopy, Hydroxyl Emission, Infrared Sources (Astronomy), Silicates, Stellar Evolution, Asymptotic Giant Branch Stars, Color-Color Diagram, Emission Spectra, Infrared Astronomy Satellite, Spectral Energy Distribution, Stellar Envelopes
Scientific paper
The result of an OH survey of IRAS sources with the objective of detecting previously unknown highly evolved stars is reported. Objects selected for observations were north of declination + 20 deg, had no known catalog associations, and showed the 9.7-micron silicate feature in either emission or absorption. Of the 144 sources observed, 25 show double-peak emission characteristic of an expanding shell and an additional two sources show a single OH emission line. One IRAS source (19566 + 3423) is found to have a peculiar twin-double-peak profile suggestive of a concentric shell structure. Unlike most other sources the OH lines in this object show strong circular polarization and time variability.
Frankow J.
Galt John A.
Kwok Sun
No associations
LandOfFree
A search for 1612 MHz OH emission from IRAS sources with silicate features does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A search for 1612 MHz OH emission from IRAS sources with silicate features, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A search for 1612 MHz OH emission from IRAS sources with silicate features will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1566629