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SLUG—STOCHASTICALLY LIGHTING UP GALAXIES. I. METHODS AND VALIDATING TESTS

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da Silva, Robert L., Fumagalli, Michele, Krumholz, Mark·2012·The Astrophysical Journal

Abstract

The effects of stochasticity on the luminosities of stellar populations are an often neglected but crucial element for understanding populations in the low-mass or the low star formation rate regime. To address this issue, we present SLUG, a new code to "Stochastically Light Up Galaxies." SLUG synthesizes stellar populations using a Monte Carlo technique that properly treats stochastic sampling including the effects of clustering, the stellar initial mass function, star formation history, stellar evolution, and cluster disruption. This code produces many useful outputs, including (1) catalogs of star clusters and their properties such as their stellar initial mass distributions and their photometric properties in a variety of filters, (2) two dimensional histograms of color–magnitude diagrams of every star in the simulation, and (3) the photometric properties of field stars and the integrated photometry of the entire simulated galaxy. After presenting the SLUG algorithm in detail, we validate the code through comparisons with STARBURST99 in the well-sampled regime, and with observed photometry of Milky Way clusters. Finally, we demonstrate SLUG's capabilities by presenting outputs in the stochastic regime. SLUG is publicly distributed through the Web site http://sites.google.com/site/runslug/.

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Metadata

Authors
da Silva, R. L., Fumagalli, M., & Krumholz, M.
Venue
The Astrophysical Journal
Published
2012-01-12
Volume
745
Issue
2
Pages
145
ISSN
  • 0004-637X (ISSN-L)
  • 1538-4357
OpenAlex
W2053936073
Cited by
205
References
5
FWCI
9.04
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: SLUG—STOCHASTICALLY LIGHTING UP GALAXIES. I. METHODS AND VALIDATING TESTS. https://app.cochat.ai/papers/10.1088/0004-637x/745/2/145
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da Silva, R. L., Fumagalli, M., & Krumholz, M. (2012). SLUG—STOCHASTICALLY LIGHTING UP GALAXIES. I. METHODS AND VALIDATING TESTS. The Astrophysical Journal. https://doi.org/10.1088/0004-637x/745/2/145

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