HD 46703 - A high-luminosity population II F-type star

Abstract

view Abstract Citations (76) References (59) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS HD 46703 : a high-luminosity population II F-type star. Luck, R. E. ; Bond, H. E. Abstract It is pointed out that A- and F-type stars lying several magnitudes above the horizontal branch occur occasionally in globular clusters. The chemical compositions and other properties of these highly evolved stars are of considerable interest. The present investigation is concerned with HD 46703, which is believed to be another field analog of the Population II A- and F-type supergiants. A description of photometry and low-resolution spectroscopy is presented, and aspects of high-resolution spectroscopy are discussed, taking into account radial velocities and equivalent widths, lines of carbon and oxygen, and H-alpha emission, Chemical abundances and their determination are considered, giving attention to the method of analysis, the iron group and light metals, the s-process elements, carbon and oxygen abundances, and the relationship to halo planetary nebulae. The evolutionary status of HD 46703 is also studied. Publication: The Astrophysical Journal Pub Date: April 1984 DOI: 10.1086/161939 Bibcode: 1984ApJ...279..729L Keywords: A Stars; Abundance; F Stars; Globular Clusters; Stellar Luminosity; Stellar Spectrophotometry; Supergiant Stars; Balmer Series; H Alpha Line; Planetary Nebulae; Spectral Line Width; Stellar Evolution; Stellar Magnitude; Ubv Spectra; Astrophysics full text sources ADS | data products SIMBAD (1)