A comparison of galactic and Large Magellanic Cloud G-type supergiants by a method of spectrum synthesis

Abstract

view Abstract Citations (24) References (64) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS A comparison of galactic and Large Magellanic Cloud G-type supergiants by a method of spectrum synthesis. Fry, M. A. ; Aller, L. H. Abstract The spectra of two G4 Ia supergiants - HR 8752 and R 59, in the Perseus spiral arm and Large Magellanic Cloud, respectively - are analyzed by a method of spectrum synthesis, heretofore applied mostly to the sun. Evidence is presented that both of these stars are reddened by local dust clouds. Consequently, selection of appropriate model atmospheres must depend heavily on line spectrum data. A self-consistent spectrum synthesis analysis suggests that these stars are similar in composition to the sun, although there is evidence that metals are definitely underabundant in the LMC star as compared with the sun. Publication: The Astrophysical Journal Supplement Series Pub Date: January 1975 DOI: 10.1086/190332 Bibcode: 1975ApJS...29...55F Keywords: G Stars; Line Spectra; Magellanic Clouds; Spectrum Analysis; Stellar Spectra; Supergiant Stars; Abundance; Atmospheric Models; Dust; Late Stars; Stellar Atmospheres; Tables (Data); Astrophysics full text sources ADS | data products SIMBAD (5)