IAC-STAR: A Code for Synthetic Color-Magnitude Diagram Computation

By A. Aparicio, C. Gallart. 2004

134 citations recorded by the source corpus.

The code IAC-STAR is presented. It generates synthetic H-R and color-magnitude diagrams (CMDs) and is mainly aimed at star formation history studies in nearby galaxies. Composite stellar populations are calculated on a star-by-star basis, by computing the luminosity, effective temperature, and gravity of each star by direct bilogarithmic interpolation in the metallicity and age grid of a library of stellar evolution tracks. Visual (broadband and Hubble Space Telescope) and infrared magnitudes are also provided for each star after applying bolometric corrections. The Padua stellar evolution libraries of Bertelli et al. and Girardi et al., respectively, and the Teramo stellar evolution library by Pietrinferni et al., as well as various bolometric corrections libraries are used in the current version. A variety of star formation rate functions, initial mass functions, and chemical enrichment laws are allowed, and binary stars can be computed. Although the main motivation of the code is the computation of synthetic CMDs, it also provides integrated masses, luminosities, and magnitudes, as well as surface brightness fluctuation luminosities and magnitudes for the total synthetic stellar population, and therefore it can also be used for population synthesis research. The code is offered for free use and can be accessed at the IAC-STAR Web site. The only requirement is that this paper be referenced and credited as indicated there.

Subfields: Astronomy and Astrophysics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/0b4a31b7cd6b18d61ed2c4ba355b8e53bad54da1

How researchers see this paper

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In Astronomy and Astrophysics

1. Jay Anderson
2. Luis C. Ho
3. Aaron Dotter
4. G. Piotto
5. A. Milone
6. L. Bedin
7. A. Sarajedini
8. J. Kormendy

In Instrumentation

1. Jay Anderson
2. Luis C. Ho
3. J. Kormendy
4. Aaron Dotter
5. A. Milone
6. G. Piotto
7. L. Bedin
8. S. Majewski

Citations in the corpus

• Oxygen abundances in nearby stars - Clues to the formation and evolution of the Galactic disk (2007, methodology): “Note also that the Pont & Eyer method uses the synthetic color-magnitude diagrams computed by Aparicio & Gallart (2004), which, in addition to the Bertelli et al. results, is also based on isochrones that consider α-element enhancement.”
• THE ACS SURVEY OF GALACTIC GLOBULAR CLUSTERS. VII. RELATIVE AGES (2008, methodology): “To estimate the uncertainties induced by differential reddening, binary star population, and total number of cluster stars, as well as by differences between the measured MSTO and the actual GGC’s MSTO, we generated over 250 synthetic CMDs using the IAC−star (Aparicio & Gallart 2004) synthetic CMD p”
• The Adequacy of Stellar Evolution Models for the Interpretation of the Color-Magnitude Diagrams of Resolved Stellar Populations (2005, methodology): “To compute synthetic CMDs we here use the tool IAC-star (Aparicio & Gallart 2004) available on the Web at http://iac-star.iac.es.”
• HST STIS Spectroscopy of the Triple Nucleus of M31: Two Nested Disks in Keplerian Rotation around a Supermassive Black Hole (2005, methodology): “For an absolute visual magnitude ofMV 5:7 (Lauer et al. 1998), we estimate the answer in Figure 6, using IAC-STAR, the synthetic color-magnitude diagram (CMD) algorithm of the Instituto deAstrofisica de Canarias (Aparicio & Gallart 2004).”