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Spectral evolution of stellar populations using isochrone synthesis
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The study aims to predict the spectral evolution of solar‑metallicity stellar populations by combining the isochrone synthesis model of Chariot & Bruzual with an updated stellar spectral library. The authors construct a comprehensive stellar spectral library spanning a broad wavelength range up to 2.56 µm, fully covering the color‑magnitude diagram and assigning spectra to evolutionary tracks via optical/near‑IR color calibrations. Spectroscopic comparisons confirm and extend earlier photometric predictions, incorporating updated evolutionary tracks for 1.3–2.5 M⊙ stars. Published in The Astrophysical Journal, March 1993 (DOI 10.1086/172385).
view Abstract Citations (1953) References (74) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Spectral Evolution of Stellar Populations Using Isochrone Synthesis Bruzual A., Gustavo ; Charlot, Stephane Abstract We combine the photometric model of isochrone synthesis recently published by Chariot and Bruzual (1991) with an updated library of stellar spectra to predict the spectral evolution of stellar populations with solar metallicity. The library of spectra assembled here supersedes other existing libraries by its spectral range, its complete coverage of the color-magnitude diagram, and its inclusion of observed near-infrared spectra out to 2.56 micron. Also, the spectra are distributed on the stellar evolutionary tracks using optical/near-infrared color calibrations, as an improvement over models that used a single color of the effective temperature of the stars alone. The spectroscopic results obtained here confirm and extend the previous photometric predictions of the isochrone synthesis models while including the recent revision of evolutionary tracks for stars between 1.3 and 2.5 solar masses by their authors. Publication: The Astrophysical Journal Pub Date: March 1993 DOI: 10.1086/172385 Bibcode: 1993ApJ...405..538B Keywords: Astronomical Models; Astronomical Spectroscopy; Stellar Evolution; Stellar Spectra; Astronomical Photometry; Color-Magnitude Diagram; Far Ultraviolet Radiation; Metallicity; Near Infrared Radiation; Planetary Nebulae; Red Shift; Sun; White Dwarf Stars; Astrophysics; GALAXIES: LUMINOSITY FUNCTION; MASS FUNCTION; GALAXIES: STELLAR CONTENT; STARS: EVOLUTION; ULTRAVIOLET: GALAXIES full text sources ADS | data products SIMBAD (10) MAST (2)