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Related papers: A High-Resolution Stellar Library for Evolutionary…

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This study introduces a line list for the abundance analysis of F and G type stars across the 4080-9675 A wavelength range. A systematic search employing lower excitation potentials, accurate log gf values, and an updated multiplet table…

Solar and Stellar Astrophysics · Physics 2025-01-09 T. Şahin , F. Güney , S. A. Şentürk , N. Çınar , M. Marışmak

We present an homogeneous set of stellar atmospheric parameters (Teff, log g, [Fe/H]) for a sample of about 700 field and cluster stars which constitute a new stellar library in the near-infrared developed for stellar population synthesis…

Astrophysics · Physics 2009-11-07 A. J. Cenarro , J. Gorgas , N. Cardiel , S. Pedraz , R. F. Peletier , A. Vazdekis

Determining the properties of old stellar systems using evolutionary population synthesis requires a library of reliable model stellar fluxes. Empirical libraries are limited to spectra of stars in the solar neighborhood, with nearly solar…

Astrophysics · Physics 2009-10-31 Ruth C. Peterson , Ben Dorman , Robert T. Rood

$Aims.$ We present a database of 43,340 atmospheric models ($\sim$80,000 models at the conclusion of the project) for stars with stellar masses between 9 and 120 $M_{\odot}$, covering the region of the OB main-sequence and Wolf-Rayet (W-R)…

Solar and Stellar Astrophysics · Physics 2020-11-18 J. Zsargo , C. R. Fierro-Santillan , J. Klapp , A. Arrieta , L. Arias , J. M. Valencia , L. Di G. Sigalotti , M. Hareter , R. E. Puebla

We present new evolutionary synthesis models for Single Stellar Populations covering a wide range in age and metallicity. The most important difference with existing models is the use of NLTE atmosphere models for the hot stars (O, B, WR,…

Astrophysics · Physics 2007-11-21 M. Mollá , M. L. García-Vargas , Alessandro Bressan , Pedro Gómez-Alvarez

We present a new set of stellar interior and synthesis models for predicting the integrated emission from stellar populations in star clusters and galaxies of arbitrary age and metallicity. This work differs from existing spectral synthesis…

Astrophysics · Physics 2009-11-10 Raul Jimenez , James MacDonald , James Dunlop , Paolo Padoan , John Peacock

We present a comparison of low-resolution spectra of 60 stars covering the whole M-dwarf sequence. Using the most recent PHOENIX BT-Settl stellar model atmospheres (see paper by F. Allard, in this book) we do a first quantitative compari-…

Solar and Stellar Astrophysics · Physics 2011-02-09 C. Reyle , A. S. Rajpurohit , M. Schultheis , F. Allard

We have combined the Kepler Eclipsing Binary Catalogue with information from the HES, KIS and 2MASS photometric surveys to produce spectral energy distribution fits to over 2600 eclipsing binaries in the catalogue over a wavelength range of…

Solar and Stellar Astrophysics · Physics 2015-06-17 D. J. Armstrong , Y. Gómez Maqueo Chew , F. Faedi , D. Pollacco

Integrated light spectroscopy from galaxies can be used to study the stellar populations that cannot be resolved into individual stars. This analysis relies on stellar population synthesis (SPS) techniques to study the formation history and…

We have developed a new stellar population synthesis model designed to study early-type galaxies. It provides optical and near-infrared colors, and line indices for 25 absorption lines. It can synthesize single age, single metallicity…

Astrophysics · Physics 2008-11-26 A. Vazdekis , E. Casuso , R. F. Peletier , J. E. Beckman

MEGARA (Multi Espectr{\'o}grafo en GTC de Alta Resoluci{\'o}n para Astronom{\'\i}a) is an optical (3650~--~9750\AA), fibre-fed, medium-high spectral resolution (R = 6000, 12000, 20000) instrument for the GTC 10.4m telescope, commissioned in…

A library of 211 echelle spectra taken with ELODIE at the Observatoire de Haute-Provence is presented. It provides a set of spectroscopic standards covering the full range of gravities and metallicities in the effective temperature interval…

Astrophysics · Physics 2009-10-30 C. Soubiran , D. Katz , R. Cayrel

We present a grid of optical (3200--7200 \AA) synthetic spectra calculated with Tlusty/Synspec. The new NLTE model atmospheres include the most recent hydrogen Stark broadening profiles; were calculated in opacity sampling and limited to…

Solar and Stellar Astrophysics · Physics 2013-08-02 Peter Nemeth , Roy Østensen , Pier-Emmanuel Tremblay , Ivan Hubeny

This paper is the second in the series of papers on near-infrared (NIR) stellar spectral library produced by reducing the observations carried out with 1.2 meter Gurushikhar Infrared Telescope (GIRT), at Mt. Abu, India using a NICMOS3…

Astrophysics · Physics 2007-06-01 Arvind C. Ranade , Harinder P. Singh , Ranjan Gupta , N. M. Ashok

A library of 183588 synthetic spectra based on Kurucz's ATLAS9 models is presented for the far red spectral interval (7653 -- 8747\AA). It is characterized by 3500 K <= T_eff <= 47500 K, 0.0 <= log g <= 5.0, -3.0 <= [M/H] <= +0.5, 0 <=…

Astrophysics · Physics 2009-11-10 Tomaz Zwitter , Fiorella Castelli , Ulisse Munari

We present a catalog of uniformly determined stellar properties and abundances for 1626 F, G, and K stars using an automated spectral synthesis modeling procedure. All stars were observed using the HIRES spectrograph at Keck Observatory.…

Solar and Stellar Astrophysics · Physics 2016-08-24 John M. Brewer , Debra A. Fischer , Jeff A. Valenti , Nikolai Piskunov

A new generation of spectral synthesis models has been developed in the recent years, but there is no matching -- in terms of quality and resolution -- set of template galaxy spectra for testing and refining the new models. Our main goal is…

Astrophysics of Galaxies · Physics 2019-01-09 P. Francois , L. Morelli , A. Pizzella , V. D. Ivanov , L. Coccato , M. Cesetti , E. M. Corsini , E. Dalla Bonta

The path towards robust near-infrared extensions of stellar population models involves the confrontation between empirical and synthetic stellar spectral libraries across the wavelength ranges of photospheric emission. [...] With its…

We supplement recent evolutionary computations of canonical stellar models (i.e. with inefficient core overshooting) with Z=0.0002, 0.0004, 0.0006, 0.001, 0.004, 0.008 and suitable assumptions about the original He content. Evolutionary…

Astrophysics · Physics 2007-05-23 S. Degl'Innocenti , P. Cariulo , P. G. Prada Moroni , M. Marconi

We present ELODIE.3.1, an updated release of the library published in Prugniel & Soubiran (2001, 2004). The library includes 1962 spectra of 1388 stars obtained with the ELODIE spectrograph at the Observatoire de Haute-Provence 193cm…

Astrophysics · Physics 2007-06-28 Ph. Prugniel , C. Soubiran , M. Koleva , D. Le Borgne
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