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[abridged] The galactic field's late-type stellar single and binary population is calculated on the supposition that all stars form as binaries in embedded star clusters. A recently developed tool (Marks, Kroupa & Oh) is used to evolve the…

Astrophysics of Galaxies · Physics 2015-05-30 Michael Marks , Pavel Kroupa

Binary population synthesis is the method by which predictions of varied observables of stellar populations can be made from theoretical models of binary stellar evolution. Binary stars have many more possible evolutionary outcomes compared…

Solar and Stellar Astrophysics · Physics 2020-06-15 J. J. Eldridge

Recent analysis of stellar populations in barred galaxies have focused on the spatial distribution of stellar population ages and metallicities. However, barred galaxies are complex objects where dynamical instabilities play a leading role…

Astrophysics · Physics 2009-11-13 Hervé Wozniak

We present a method to determine the star formation history of a mixed stellar population from its photometry. We perform a chi-squared minimization between the observed photometric distribution and a model photometric distribution, based…

Astrophysics · Physics 2009-11-06 Jason Harris , Dennis Zaritsky

We developed a new population synthesis code for groups of massive stars, where we model the emission of different forms of energy and matter from the stars of the association. In particular, the ejection of the two radioactive isotopes…

Astrophysics of Galaxies · Physics 2015-05-13 R. Voss , R. Diehl , D. H. Hartmann , M. Cervino , J. S. Vink , G. Meynet , M. Limongi , A. Chieffi

Comparing models of Simple Stellar Populations (SSP) with observed line strengths generally provides a tool to break the age-metallicity degeneracy in elliptical galaxies. Due to the wide range of Balmer line strengths observed, ellipticals…

Astrophysics · Physics 2009-12-08 Claudia Maraston , Daniel Thomas

Using 17 chemical elements as a proxy for stellar DNA, we present a full phylogenetic study of stars in the solar neighbourhood. This entails applying a clustering technique that is widely used in molecular biology to construct an…

Astrophysics of Galaxies · Physics 2017-03-22 Paula Jofre , Payel Das , Jaume Bertranpetit , Robert Foley

We present a study of the stellar populations within the central regions of four nearby barred galaxies, and use a novel technique to constrain the duration of bar activity. We focus on the star formation 'desert', a region within each of…

Astrophysics of Galaxies · Physics 2016-02-03 Phil A. James , Susan M. Percival

The existence of star-to-star light-element abundance variations in massive Galactic and extragalactic star clusters has fairly recently superseded the traditional paradigm of individual clusters hosting stars with the same age, and uniform…

Solar and Stellar Astrophysics · Physics 2020-07-15 Santi Cassisi , Maurizio Salaris

In this chapter we discuss the population and spectral synthesis of stellar populations. We describe the method required to achieve such synthesis and discuss examples where inclusion of interacting binaries are vital to reproducing the…

Solar and Stellar Astrophysics · Physics 2020-06-15 J. J. Eldridge , Elizabeth R. Stanway

We present an analysis of the global stellar populations of galaxies in the SAMI Galaxy Survey. Our sample consists of 1319 galaxies spanning four orders of magnitude in stellar mass and includes all morphologies and environments. We derive…

The planetary population synthesis method aims at comprehensively testing planet formation theories against observational evidence and providing theoretical sets of planets to help interpret observations and inform instrument development.…

Earth and Planetary Astrophysics · Physics 2024-10-02 Remo Burn , Christoph Mordasini

We investigate the power of spectral synthesis as a mean to estimate physical properties of galaxies. Spectral synthesis is nothing more than the decomposition of an observed spectrum in terms of a superposition of a base of simple stellar…

Astrophysics · Physics 2007-05-23 L. Sodre , R. Cid Fernandes , A. Mateus , G. Stasinska , J. M. Gomes

Models of stellar population synthesis (SPS) are the fundamental tool that relates the physical properties of a galaxy to its spectral energy distribution (SED). In this paper, we present DSPS: a python package for stellar population…

Astrophysics of Galaxies · Physics 2023-02-20 Andrew P. Hearin , Jonás Chaves-Montero , Alex Alarcon , Matthew R. Becker , Andrew Benson

We present evolutionary population synthesis models for the study of the cool and luminous intermediate age stellar populations in resolved galaxies with particular emphasis on carbon star populations. We study the effects of the star…

Astrophysics · Physics 2009-11-07 M. Mouhcine , A. Lancon

We develop a new empirical methodology to study the relation between the stellar mass of galaxies and the mass of their host subhaloes. Our approach is similar to abundance matching, and is based on assigning a stellar mass to each subhalo…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Eyal Neistein , Cheng Li , Sadegh Khochfar , Simone M. Weinmann , Francesco Shankar , Michael Boylan-Kolchin

In terms of statistical fluctuations, stellar population synthesis models are only asymptotically correct in the limit of a large number of stars, where sampling errors become asymptotically small. When dealing with stellar clusters,…

Astrophysics · Physics 2009-12-15 M. Cervino , D. Valls-Gabaud , V. Luridiana , J. M. Mas-Hesse

Observational advances over the last decade have enabled high-resolution, interferometric studies of forming multiple systems, statistical surveys of multiplicity in star-forming regions, and new insights into disk evolution and planetary…

Solar and Stellar Astrophysics · Physics 2022-12-08 Stella S. R. Offner , Maxwell Moe , Kaitlin M. Kratter , Sarah I. Sadavoy , Eric L. N. Jensen , John J. Tobin

The cornerstone mission Gaia, together with complementary surveys, will revolutionize our understanding of the formation and history of our Galaxy, providing accurate stellar masses, radii, ages, distances, as well as chemical properties…

Solar and Stellar Astrophysics · Physics 2017-04-26 N. Lagarde , A. C. Robin , C. Reylé , G. Nasello

We extend our previous physically-based halo occupation distribution models to include the dependence of clustering on the spectral energy distributions of galaxies. The high resolution Millennium Simulation is used to specify the positions…

Astrophysics · Physics 2008-11-26 Lan Wang , Cheng Li , Guinevere Kauffmann , Gabriella De Lucia
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