Properties and evolution of BQ[] stars.
Abstract
Summary. Spectroscopic observations of MWC 17, MWC 349, HD 45677 and HD 51585 obtained at Asiago ( 38O( l0900 A) are used with the infrared and radio data to define a two component model of BQ [] stars. An evolutionary sequence where some BQ [] stars might evolve into a kind of planetary nebulae is suggested. Key words: combination spectra planetary nebulae - symbiotic stars - infrared sources - radio stars
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- August 1974
- Bibcode:
- 1974A&A....34..181C