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We present optical and IR integrated colours and SBF magnitudes, computed from stellar population synthesis models that include emission from the dusty envelopes surrounding TP-AGB stars undergoing mass-loss. We explore the effects of…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 Rosa A. Gonzalez-Lopezlira , Gustavo Bruzual-A. , Stephane Charlot , Javier Ballesteros-Paredes , Laurent Loinard

We present the modules for stellar nucleosynthesis, stellar mass loss, and turbulent diffusion of the new COLIBRE subgrid model for cosmological hydrodynamical simulations of galaxy formation. COLIBRE models the thermal evolution of the…

Stellar population synthesis (SPS) models are a key tool for deriving the age, metallicity, radial velocity and reddening of star clusters from their integrated spectra. Using a sample of 129 star clusters with high-quality spectra, we…

Solar and Stellar Astrophysics · Physics 2025-04-07 Randa Asad , Paula R. T. Coelho , Johina M. John , Igor Chilingarian , Gustavo Bruzual , Stephane Charlot

We present stellar yields calculated from detailed models of low and intermediate-mass asymptotic giant branch (AGB) stars. We evolve models with a range of mass from 1 to 6Msun, and initial metallicities from solar to 1/200th of the solar…

Astrophysics · Physics 2009-07-28 Amanda I. Karakas , John C. Lattanzio

Taking advantage of recent important advances in the calculation of high-resolution spectral grids of stellar atmospheres at short wavelengths, and their implementation for population synthesis models, we briefly review here some special…

Astrophysics · Physics 2007-09-19 A. Buzzoni , E. Bertone , M. Chavez , L. H. Rodriguez-Merino

During this last decade our knowledge of the evolutionary properties of stars has significantly improved. This result has been achieved thanks to our improved understanding of the physical behavior of stellar matter in the thermal regimes…

Solar and Stellar Astrophysics · Physics 2015-05-14 Santi Cassisi

The enrichment of Pb in the Galaxy is followed in the framework of a detailed model of Galactic chemical evolution that already proved adequate to reproduce the chemical enrichment of O and of the elements from Ba to Eu. The stellar yields…

Astrophysics · Physics 2009-10-31 Claudia Travaglio , Roberto Gallino , Maurizio Busso , Raffaele Gratton

This paper presents the first results from a model for chemical evolution that can be applied to N-body cosmological simulations and quantitatively compared to measured stellar abundances from large astronomical surveys. This model…

Astrophysics of Galaxies · Physics 2015-09-29 Brian D. Crosby , Brian W. O'Shea , Timothy C. Beers , Jason Tumlinson

Our unified chemical and spectrophotometric evolution code allows to simultaneously study the ISM abundances of a series of elements and the spectral properties of the stellar population in our model galaxies. We use stellar evolutionary…

Astrophysics · Physics 2007-05-23 Uta Fritze - v. Alvensleben

Exoplanet surveys have revealed a wide diversity of planetary systems, requiring integrated models of planet formation to explain their origin. Planet population synthesis (PPS) modelling is a key tool for linking theory with the…

Earth and Planetary Astrophysics · Physics 2026-04-21 Tadahiro Kimura , Masahiro Ikoma

Calculations from stellar evolutionary models of low- and intermediate-mass asymptotic giant branch (AGB) stars provide predictions of elemental abundances and yields for comparison to observations. However, there are many uncertainties…

Solar and Stellar Astrophysics · Physics 2015-06-18 C. K. Fishlock , A. I. Karakas , R. J. Stancliffe

Accurate estimates of fundamental physical properties of galaxies, such as star formation rates (SFRs) or stellar masses, are essential for testing and constraining models of galaxy formation and evolution. Spectral energy distribution…

The evolution of AGB stars is notoriously complex. The confrontation of AGB population models with observed stellar populations is a useful alternative to the detailed study of individual stars in efforts to converge towards a reliable…

Astrophysics of Galaxies · Physics 2010-11-23 Ariane Lançon

One--dimensional stellar structure and evolution programs are built using different physical prescriptions and algorithms, which means there can be variations between models' predictions even when using identical input physics. This leads…

Solar and Stellar Astrophysics · Physics 2023-08-09 Giulia C. Cinquegrana , Meridith Joyce , Amanda I. Karakas

We investigate the ability of spectroscopic techniques to yield realistic star formation histories (SFHs) for the bulges of spiral galaxies based on a comparison with their observed broadband colors. Full spectrum fitting to optical spectra…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Lauren A. MacArthur , Michael McDonald , Stephane Courteau , J. Jesus Gonzalez

This paper is the 4th in a series describing the latest additions to the BaSTI stellar evolution database, which consists of a large set of homogeneous models and tools for population synthesis studies. Here we present a new set of low and…

Astrophysics · Physics 2008-12-18 Susan M. Percival , Maurizio Salaris , Santi Cassisi , Adriano Pietrinferni

We present stellar evolutionary sequences for asymptotic giant branch (AGB) stars in the Magellanic Cloud clusters NGC 1978, NGC 1846 and NGC 419. The new stellar models for the three clusters match the observed effective temperatures on…

Solar and Stellar Astrophysics · Physics 2015-06-03 D. Kamath , A. I. Karakas , P. R. Wood

We present models that predict spectra of old- and intermediate-aged stellar populations at 2.51\AA\ (FWHM) with varying [\alpha/Fe] abundance. The models are based on the MILES library and on corrections from theoretical stellar spectra.…

Asymptotic Giant Branch (AGB) stars play a key role in the chemical evolution of galaxies. These stars are the fundamental stellar site for the production of light elements such as C, N and F, and half of the elements heavier than Fe via…

Solar and Stellar Astrophysics · Physics 2026-01-12 Umberto Battino , Marco Pignatari , Ashley Tattersall , Pavel Denissenkov , Falk Herwig

The spectral energy distributions (SEDs) of galaxies are shaped by nearly every physical property of the system, including the star formation history, metal content, abundance pattern, dust mass, grain size distribution, star-dust geometry,…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Charlie Conroy
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