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We pick out the 35 brightest galaxies from Goto's E+A galaxies catalogue which are selected from the Sloan Digital Sky Survey Data Release 5. The spectra of E+As are prominently characterized by the strong Balmer absorption lines but little…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Wei Du , A-Li Luo , Philippe Prugniel , Yan-Chun Liang , Yong-Heng Zhao

The discovery of multiple stellar populations in Milky Way globular clusters (GCs) has stimulated various follow-up studies on helium-enhanced stellar populations. Here we present the evolutionary population synthesis models for the…

Astrophysics of Galaxies · Physics 2017-06-28 Chul Chung , Suk-Jin Yoon , Young-Wook Lee

We present simple stellar population models based on the empirical X-shooter Spectral Library (XSL) from NUV to NIR wavelengths. The unmatched characteristics of relatively high resolution and extended wavelength coverage ($350-2480$ nm,…

The development of evolutionary stellar population models is central to interpreting observations of galaxies in terms of astrophysical quantities. Stellar population models must therefore be both accurate and compatible with inversion…

Stellar population synthesis (SPS) models are invaluable to study star clusters and galaxies. They provide means to extract stellar masses, stellar ages, star formation histories, chemical enrichment and dust content of galaxies from their…

Astrophysics of Galaxies · Physics 2020-01-08 Paula R. T. Coelho , Gustavo Bruzual , Stephane Charlot

In this paper, I review to what extent we can understand the photometric properties of star clusters, and of low-mass, unresolved galaxies, in terms of population synthesis models designed to describe `simple stellar populations' (SSPs),…

Astrophysics of Galaxies · Physics 2009-11-05 A. Gustavo Bruzual

We have generated a set of far-ultraviolet stellar libraries using spectra of OB and Wolf-Rayet stars in the Galaxy and the Large and Small Magellanic Cloud. The spectra were collected with the Far Ultraviolet Spectroscopic Explorer and…

We present Gemini/GNIRS cross-dispersed near-infrared spectra of 12 nearby early-type galaxies, with the aim of testing commonly used stellar population synthesis models. We select a subset of galaxies from the atlas/ sample which span a…

Astrophysics of Galaxies · Physics 2017-12-06 C. M. Baldwin , R. M. McDermid , H. Kuntschner , C. Maraston , C. Conroy

Low metallicity stellar populations are very abundant in the Universe, either as the remnants of the past history of the Milky Way or similar spiral galaxies, or the young low metallicity stellar populations that are being observed in the…

Astrophysics of Galaxies · Physics 2026-01-14 I. Millán-Irigoyen , M. Mollá , M. Cerviño , M. L. García-Vargas

(Abridged). Stellar absorption lines in the optical have been extensively studied and constitute an important stellar population diagnostic for galaxies in the local universe and up to moderate redshifts. Proceeding towards higher look-back…

Astrophysics · Physics 2009-11-13 C. Maraston , L. A. Nieves , R. Bender , D. Thomas

We extend the spectral range of our stellar population synthesis models based on the MILES and CaT empirical stellar spectral libraries. For this purpose we combine these two libraries with the Indo-U.S. to construct composite stellar…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 A. Vazdekis , E. Ricciardelli , A. J. Cenarro , J. G. Rivero-González , L. A. Díaz-García , J. Falcón-Barroso

I describe very briefly the new libraries of empirical spectra of stars covering wide ranges of values of the atmospheric parameters Teff, log g, [Fe/H], as well as spectral type, that have become available in the recent past, among them…

Astrophysics · Physics 2007-05-23 Gustavo Bruzual A.

We present the first models allowing one to explore in a consistent way the influence of changes in the alpha-element-to-iron abundance ratio on the high-resolution spectral properties of evolving stellar populations. The models cover the…

Astrophysics · Physics 2008-01-08 P. Coelho , G. Bruzual , S. Charlot , A. Weiss , B. Barbuy , J. Ferguson

The near-infrared spectral region is becoming a very useful wavelength range to detect and quantify the stellar population of galaxies. Models are developing to predict the contribution of TP-AGB stars, that should dominate the NIR spectra…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Lucimara Martins , Alberto Rodríguez-Ardila , Suzi Diniz , Rogério Riffel , Ronaldo de Souza

Synthetic integrated spectral properties of the old Galactic open clusters are studies in this work, where twenty-seven Galactic open clusters of ages >= 1Gyr are selected as the working sample. Based on the photometric observations of…

Astrophysics · Physics 2009-11-10 Y. Xin , L. Deng

The Binary Population and Spectral Synthesis (BPASS) suite of binary stellar evolution models and synthetic stellar populations provides a framework for the physically motivated analysis of both the integrated light from distant stellar…

Solar and Stellar Astrophysics · Physics 2017-11-29 J. J. Eldridge , E. R. Stanway , L. Xiao , L. A. S. McClelland , G. Taylor , M. Ng , S. M. L. Greis , J. C. Bray , .

Galaxy formation and evolution is one of the most active areas of research in astronomy. In recent times there have been several developments on the observational fronts particularly with the discovery of several relations between galaxy…

Astrophysics of Galaxies · Physics 2026-05-06 Kenil Rajendrabhai Ajudiya

We present a detailed stellar population analysis of 11 bright ($H<26.6$) galaxies at $z=9-11$ (three spectroscopically confirmed) to constrain the chemical enrichment and growth of stellar mass of early galaxies. We use the flexible…

We present re-processed flux calibrated spectra of 406 stars from the UVES-POP stellar library in the wavelength range 320-1025 nm, which can be used for stellar population synthesis. The spectra are provided in the two versions having…

We explore the properties of selected mid-ultraviolet (1900-3200 angstrom) spectroscopic indices of simple stellar populations (SSPs). We incorporate the high resolution UVBLUE stellar spectral library into an evolutionary population…

Astrophysics of Galaxies · Physics 2009-07-22 Miguel Chavez , Emanuele Bertone , Javier Morales-Hernandez , Alessandro Bressan