Orbits of close binaries with CA II H and K in emission. V - The main-sequence system UV PISCIUM

Abstract

view Abstract Citations (12) References (25) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Orbits of Close Binaries With CA II H and K in Emission. V. the Main-Sequence System UV PISCIUM Popper, Daniel M. Abstract UV Psc is a detached, main-sequence eclipsing binary with period 0.68 d and components of types G and K. Both components have Ca II H and K in emission, but in the blue-violet photographic spectrum only lines of the larger, more massive component are seen in absorption. Results of published photometric analyses are combined with the spectrographic orbits to derive the properties of the components. Because of intrinsic variability in the light of at least the hotter star and possible systematic effects in the secondary velocities, the results are not of high precision. They add, nevertheless, to the very meager supply of fundamental parameters of main-sequence G- and K-type stars. Publication: The Astronomical Journal Pub Date: August 1991 DOI: 10.1086/115904 Bibcode: 1991AJ....102..699P Keywords: Eclipsing Binary Stars; Emission Spectra; Main Sequence Stars; Stellar Composition; Stellar Orbits; Calcium; Light Curve; Orbital Elements; Astrophysics; SPECTROPHOTOMETRY; STARS: ECLIPSING BINARIES full text sources ADS | data products SIMBAD (3) Related Materials (4) Part 1: 1988AJ.....95.1242P Part 2: 1988AJ.....96.1040P Part 3: 1990AJ....100..247P Part 4: 1991AJ....101..220P