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相关论文: The Y^2 Stellar Evolutionary Tracks

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The stellar evolution code YREC is outlined with emphasis on its applications to helio- and asteroseismology. The procedure for calculating calibrated solar and stellar models is described. Other features of the code such as a non-local…

天体物理学 · 物理学 2008-11-26 P. Demarque , D. B. Guenther , L. H. Li , A. Mazumdar , C. W. Straka

We present a new stellar evolution code and a set of results, demonstrating its capability at calculating full evolutionary tracks for a wide range of masses and metallicities. The code is fast and efficient, and is capable of following…

天体物理学 · 物理学 2009-11-13 Attay Kovetz , Ofer Yaron , Dina Prialnik

We present the Dartmouth Stellar Evolution Emulator (DSEE), a flow-based stellar evolution model emulator trained on a comprehensive database comprising over eight million evolutionary tracks that vary across twenty input-physics dimensions…

太阳与恒星天体物理 · 物理学 2026-04-09 Jiaqi , Ying , Brian Chaboyer , Phillip A. Cargile , Wenxin Du , George Dufresne

Grids of stellar models are useful tools to derive the properties of stellar clusters, in particular young clusters hosting massive stars, and to provide information on the star formation process in various mass ranges. Because of their…

太阳与恒星天体物理 · 物理学 2019-05-01 L. Haemmerlé , P. Eggenberger , S. Ekström , C. Georgy , G. Meynet , A. Postel , M. Audard , M. Sørensen , T. Fragos

A new grid of theoretical isochrones based on the Yale stellar evolution code using the OPAL and Kurucz opacities has been constructed. The grid of isochrones spans a wide range of metallicities, helium abundances and masses. The…

天体物理学 · 物理学 2007-05-23 Brian Chaboyer , P. Demarque , D. B. Guenther , M. H. Pinsonneault , L. L. Pinsonneault

In this chapter I give an overall description of the structure and evolution of stars of different masses, and review the main ingredients included in state-of-the-art calculations aiming at reproducing observational features. I give…

太阳与恒星天体物理 · 物理学 2017-12-27 Víctor Silva Aguirre

We have used an updated version of the empirically and semi-empirically calibrated BaSeL library of synthetic stellar spectra of Lejeune et al. (1997, 1998) and Westera et al. (1999) to calculate synthetic photometry in the UBVRIJHKLL'M,…

天体物理学 · 物理学 2009-10-31 Thibault Lejeune , Daniel Schaerer

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…

星系天体物理 · 物理学 2017-06-28 Chul Chung , Suk-Jin Yoon , Young-Wook Lee

We present a new comprehensive collection of stellar evolutionary tracks and isochrones for rotating low- and intermediate-mass stars assembled with the updated version of PARSEC V2.0. This version includes our recent calibration of the…

太阳与恒星天体物理 · 物理学 2022-09-21 C. T. Nguyen , G. Costa , L. Girardi , G. Volpato , A. Bressan , Y. Chen , P. Marigo , X. Fu , P. Goudfrooij

Canonical grids of stellar evolutionary sequences have been computed for the helium mass-fraction abundances $Y = 0.25$, $0.29$, and $0.33$, and for iron abundances that vary from $-2.4$ to $+0.4$ (in 0.2 dex increments) when [$\alpha$/Fe]…

太阳与恒星天体物理 · 物理学 2015-06-22 Don A. VandenBerg , Peter A. Bergbusch , Jason W. Ferguson , Bengt Edvardsson

Giant planet evolution models play a crucial role in interpreting observations and constraining formation pathways. However, the simulations can be slow or prohibitively difficult. To address this issue, we calculate a large suite of giant…

地球与行星天体物理 · 物理学 2021-08-18 Simon Müller , Ravit Helled

We derive detailed theoretical models for 1074 nearby stars from the SPOCS (Spectroscopic Properties of Cool Stars) Catalog. The California and Carnegie Planet Search has obtained high-quality echelle spectra of over 1000 nearby stars taken…

天体物理学 · 物理学 2009-11-11 Genya Takeda , Eric B. Ford , Alison Sills , Frederic A. Rasio , Debra A. Fischer , Jeff A. Valenti

We perform an extensive test of theoretical stellar models for main-sequence stars in ugriz, using cluster fiducial sequences obtained in the previous paper of this series. We generate a set of isochrones using the Yale Rotating…

The detection of exoplanets and accretion disks around newborn stars has spawned new ideas and models of how our Solar System formed and evolved. Meteorites as probes of geologic deep time can provide ground truth to these models. In…

地球与行星天体物理 · 物理学 2022-03-07 Christoph Burkhardt

We briefly review some constraints (Owing to the limited number of pages of present review, only a sub-sample of the topics discussed during the talk are briefly summarized. For the interested readers we are pleased to send them upon…

天体物理学 · 物理学 2009-11-13 S. Cassisi

In this contribution I will discuss fundamental stellar parameters as determined from young star clusters; specifically those with ages less than or approximately equal to that of the Pleiades. I will focus primarily on the use of stellar…

太阳与恒星天体物理 · 物理学 2016-12-07 Cameron P. M. Bell

A qualitative study is made of the evolutionary tracks of various dense clusters, with allowance for the evaporation of stars, and for head-on collisions, until relativistic collapse occures or the cluster breaks up.

天体物理学 · 物理学 2007-05-23 G. S. Bisnovatyi-Kogan

We present new evolutionary synthesis models for Simple Stellar Populations for a wide range of ages and metallicities. The models are based on the Padova isochrones. The core of the spectral library is provided by the medium resolution…

宇宙学与河外天体物理 · 物理学 2015-05-13 M. Molla , M. L. Garcia-Vargas , A. Bressan

Measuring properties of young stellar objects (YSOs) is necessary for probing the pre-main-sequence evolution of stars. As YSOs exhibit complex geometry, measurement generally entails comparing observed radiation to template populations of…

太阳与恒星天体物理 · 物理学 2025-07-24 Theo Richardson , Adam Ginsburg , Erik Rosolowsky , Joshua Peltonen , Rémy Indebetouw

Stellar evolution theory has been extraordinarily successful at explaining the different phases under which stars form, evolve and die. While the strongest constraints have traditionally come from binary stars, the advent of…

星系天体物理 · 物理学 2016-07-12 D. Valls-Gabaud