Spectroscopy of IRAS sources with far IR colors similar to those of planetary nebulae

Details Spectroscopy of IRAS sources with far IR colors similar to those of planetary nebulae Spectroscopy of IRAS sources with far IR colors similar to those of planetary nebulae

Sep 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993basi...21..605r&link_type=abstract

Astronomical Society of India, Bulletin (ISSN 0304-9523), vol. 21, no. 3-4, p. 605-607

Astronomy and Astrophysics

Astronomy

Asymptotic Giant Branch Stars, Infrared Sources (Astronomy), Infrared Spectroscopy, Planetary Nebulae, Sky Surveys (Astronomy), Stellar Evolution, Visual Observation, Data Correlation, Identifying, Infrared Astronomy Satellite, Luminosity, Spectrum Analysis

Scientific paper

Optical candidates of 17 unidentified IRAS sources with far-infrared colors similar to planetary nebulae have been detected on sky survey plates. Low resolution CCD spectra of seven optical candidates suggests that they are post asymptotic giant branch (AGB) A-F-G supergiants. Their location in the Hertzsprung-Russell (HR) diagram and the presence of detached cold dust shells with far-infrared colors similar to planetary nebulae suggests that they are low mass stars and have been experienced severe mass loss in the recent past during their AGB stage of evolution.

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