Abstract
view Abstract Citations (17) References (16) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Line Identifications in the Evolving Star FG Sagittae Wallerstein, George Abstract Wavelength measurements and line identifications from 7 A/mm Palomar spectra between 5328 and 6714 A are presented. The spectrum is dominated by lines of the singly ionized rare earths from La II through Gd II. The presence and strength of Sm, Eu, and Gd is surprising if the abundance anomalies are due to the s-process as in barium stars. This may represent the products of an unusually vigorous shell flash, an evolution toward an SC star like UY Cen, or else even evolution toward a star like HD 101065 whose surface composition is not understood. Publication: The Astrophysical Journal Supplement Series Pub Date: November 1990 DOI: 10.1086/191516 Bibcode: 1990ApJS...74..755W Keywords: Line Spectra; Rare Earth Elements; Sagittarius Constellation; Stellar Spectra; Variable Stars; Peculiar Stars; Planetary Nebulae; Stellar Evolution; Stellar Models; Astrophysics; LINE IDENTIFICATIONS; STARS: ABUNDANCES; STARS: BA II; STARS: INDIVIDUAL CONSTELLATION NAME: FG SAGITTAE; STARS: VARIABLES full text sources ADS | data products SIMBAD (1)
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