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相关论文: STELIB: a library of stellar spectra at R~2000

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Libraries of stellar spectra are fundamental tools for the study of stellar populations and both empirical and synthetic libraries have been used for this purpose. In this paper, a new library of high resolution synthetic spectra is…

天体物理学 · 物理学 2009-11-11 P. Coelho , B. Barbuy , J. Melendez , R. Schiavon , B. Castilho

We present a library of 1654 high-resolution stellar spectra, with a sampling of 0.3 A and covering the wavelength range from 3000 A ~ to 7000 A The library was computed with the latest improvements in stellar atmospheres, incorporating…

A new stellar library developed for stellar population synthesis modeling is presented. The library consist of 985 stars spanning a large range in atmospheric parameters. The spectra were obtained at the 2.5m INT telescope and cover the…

Libraries of stellar spectra are fundamental tools in the study of stellar populations and in automatic determination of atmospheric parameters for large samples of observed stars. In the context of the present volume, here I give an…

太阳与恒星天体物理 · 物理学 2009-06-08 Paula Coelho

I present a short description of the STELIB, HNGSL, IndoUS, MILES, ELODIE, UVES-POP, and IRTF libraries of empirical stellar spectra and show some applications of their use in population synthesis models. When new calculations of the TP-AGB…

天体物理学 · 物理学 2007-05-23 Gustavo Bruzual A

We present a detailed study of the stars of the IRTF spectral library to understand its full extent and reliability for use with Stellar Population (SP) modeling. The library consist of 210 stars, with a total of 292 spectra, covering the…

星系天体物理 · 物理学 2015-10-21 S. Meneses-Goytia , R. F. Peletier , S. C. Trager , J. Falcon-Barroso , M. Koleva , A. Vazdekis

Theoretical stellar libraries have been increasingly used to overcome limitations of empirical libraries, e.g. by exploring atmospheric parameter spaces not well represented in the latter. This work presents a new theoretical library which…

太阳与恒星天体物理 · 物理学 2014-04-15 P. R. T. Coelho

We present a new library of semi-empirical stellar spectra that is based on the empirical MILES library. A new, high resolution library of theoretical stellar spectra is generated that is specifically designed for use in stellar population…

太阳与恒星天体物理 · 物理学 2021-04-15 Adam T. Knowles , Anne E. Sansom , Carlos Allende Prieto , Alex Vazdekis

High resolution synthetic stellar libraries are of fundamental importance for the preparation of the Gaia Mission. We present new sets of spectral stellar libraries covering two spectral ranges: 300 --1100 nm at 0.1 nm resolution, and 840…

In the present work we compare in detail some of the major theoretical libraries with observations, aiming at detecting weaknesses and strengths from the stellar population modelling point of view. We compared model predictions and…

天体物理学 · 物理学 2009-11-13 Lucimara Martins , Paula Coelho

We present the first release of XSL, the X-Shooter Spectral Library. This release contains 237 stars spanning the wavelengths 3000--10200 \AA\ observed at a resolving power $R \equiv \lambda / \Delta\lambda \sim 10000$. The spectra were…

太阳与恒星天体物理 · 物理学 2014-05-28 Yan-Ping Chen , S. C. Trager , R. F. Peletier , A. Lançon , A. Vazdekis , Ph. Prugniel , D. R. Silva , A. Gonneau

Models of stellar spectra are necessary for interpreting light from individual stars, planets, integrated stellar populations, nebulae, and the interstellar medium. We provide a comprehensive and homogeneous collection of synthetic spectra…

太阳与恒星天体物理 · 物理学 2018-10-10 Carlos Allende Prieto , Lars Koesterke , Ivan Hubeny , Manuel A. Bautista , Paul S. Barklem , Sultana N. Nahar

STARLIB is a next-generation, all-purpose nuclear reaction-rate library. For the first time, this library provides the rate probability density at all temperature grid points for convenient implementation in models of stellar phenomena. The…

太阳与恒星天体物理 · 物理学 2013-07-11 A. L. Sallaska , C. Iliadis , A. E. Champagne , S. Goriely , S. Starrfield , F. X. Timmes

We present an extended theoretical library of over 800 synthetic stellar spectra, covering energy distribution in the optical range (lambda = 3500-7000 angstrom), at inverse resolution R=500000. The library, based on the ATLAS9 model…

天体物理学 · 物理学 2007-05-23 E. Bertone , A. Buzzoni , L. H. Rodriguez-Merino , M. Chavez

We present an empirical infrared spectral library of medium resolution (R~2000-3000) H (1.6 micron) and K (2.2 micron) band spectra of 218 red stars, spanning a range of [Fe/H] from ~-2.2 to ~+0.3. The sample includes Galactic disk stars,…

We have obtained [Mg/Fe] for around 77% of the stars of the MILES library of stellar spectra in order to include this important information into simple stellar population (SSP) models. The abundance ratios, which were carefully calibrated…

太阳与恒星天体物理 · 物理学 2015-05-14 A. Milone , A. E. Sansom , P. Sánchez-Blázquez

We present a library of high-resolution (R $\equiv$ $\lambda$/$\Delta$$\lambda$ $\sim$ 45,000) and high signal-to-noise ratio (S/N $\geq$ 200) near-infrared spectra for stars of a wide range of spectral types and luminosity classes. The…

We present new, high-to-intermediate spectral resolution stellar population models, based on four popular libraries of empirical stellar spectra, namely Pickles, ELODIE, STELIB and MILES. These new models are the same as our previous…

宇宙学与河外天体物理 · 物理学 2015-05-30 Claudia Maraston , Gustav Stromback , ICG-University of Portsmouth , United Kingdom

We present model spectra of stellar populations with variable chemical composition. We derived the [alpha/Fe] abundance ratio of the stars of the most important libraries (ELODIE, CFLIB and MILES) using full spectrum fitting and we…

宇宙学与河外天体物理 · 物理学 2015-06-03 Philippe Prugniel , Mina Koleva

We present a homogeneous set of stellar atmospheric parameters Teff, log g, [Fe/H] for MILES, a new spectral stellar library covering the range 3525 - 7500 angstrom at 2.3 angstrom (FWHM) spectral resolution. The library consists of 985…

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