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相关论文: Bonn Optimized Stellar Tracks (BoOST). Simulated P…

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In addition to being spectacular objects, Very Massive Stars (VMS) are suspected to have a tremendous impact on their environment and on the whole cosmic evolution. The nucleosynthesis both during their advanced stages and their final…

太阳与恒星天体物理 · 物理学 2023-12-06 S. Martinet , G. Meynet , S. Ekström , C. Georgy , R. Hirschi

A grid of evolutionary sequences of stars in the mass range $1.2$-$7$ M$_{\odot}$, with solar-like initial composition is presented. We focus on this mass range in order to estimate the masses and calculate the CNO surface abundances of a…

太阳与恒星天体物理 · 物理学 2015-07-07 Ghina M. Halabi , Mounib El Eid

We present dense grids of stellar models suitable for comparison with observable quantities measured with great precision, such as those derived from binary systems or planet-hosting stars. We computed new Geneva models without rotation at…

太阳与恒星天体物理 · 物理学 2015-06-03 N. Mowlavi , P. Eggenberger , G. Meynet , S. Ekstrom , C. Georgy , A. Maeder , C. Charbonnel , L. Eyer

We construct evolutionary tracks for massive black hole binaries (MBHBs) embedded in a surrounding distribution of stars. The dynamics of the binary is evolved by taking into account the erosion of the central stellar cusp bound to the…

宇宙学与河外天体物理 · 物理学 2011-08-03 A. Sesana

Massive stars lose a significant fraction of their mass through stellar winds at various stages of their lives, including on the main sequence, during the red supergiant phase, and as evolved helium-rich Wolf--Rayet stars. In stellar…

太阳与恒星天体物理 · 物理学 2025-07-24 JD Merritt , Simon Stevenson , Andreas Sander , Ilya Mandel , Jeff Riley , Ben Farr , L. A. C. van Son , Tom Wagg , Serena Vinciguerra , Holden Jose

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…

天体物理学 · 物理学 2009-11-10 Raul Jimenez , James MacDonald , James Dunlop , Paolo Padoan , John Peacock

(abridged) We present a new tool for building synthetic colour-magnitude diagrams of coeval stellar populations. We study, from a theoretical point of view, the impact of axial rotation of stars on various observed properties of single-aged…

Stellar masses are a fundamental property to understand models of pre-main sequence evolution, but their values derived from Hertzsprung-Russell (HR) diagrams are strongly model dependent. We benchmark pre-main sequence stellar evolutionary…

We present an extended grid of state-of-the art stellar models for low-mass stars including updated physics (nuclear reaction rates, surface boundary condition, mass-loss rate, angular momentum transport, torque and rotation-induced mixing…

太阳与恒星天体物理 · 物理学 2019-10-23 L. Amard , A. Palacios , C. Charbonnel , F. Gallet , C. Georgy , N. Lagarde , L. Siess

Massive O-type stars lose a significant fraction of their mass through radiation-driven winds, a process that critically shapes their evolution and feedback into the interstellar medium. Accurate predictions of mass-loss rates are essential…

太阳与恒星天体物理 · 物理学 2026-02-19 F. Figueroa-Tapia , J. A. Panei , M. Curé , I. Araya , S. Ekström , A. C. Gormaz-Matamala , R. O. J. Venero , L. S. Cidale

We investigate the resolved star formation properties of a sample of 45 massive galaxies (M_*>10^11M_solar) within a redshift range of 1.5 < z < 3 detected in the GOODS NICMOS Survey (Conselice et al. 2011), a HST H-band imaging program. We…

宇宙学与河外天体物理 · 物理学 2012-12-17 Jamie R. Ownsworth , Christopher J. Conselice , Alice Mortlock , William G. Hartley , Fernando Buitrago

Mass and energy injection throughout the lifetime of a star cluster contributes to the gas reservoir available for subsequent episodes of star formation and the feedback energy budget responsible for ejecting material from the cluster. In…

星系天体物理 · 物理学 2018-07-30 J. P. Naiman , E. Ramirez-Ruiz , D. N. C. Lin

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 examine stellar population gradients in ~100 massive early type galaxies spanning 180 < sigma* < 370 km/s and M_K of -22.5 to -26.5 mag, observed as part of the MASSIVE survey (Ma et al. 2014). Using integral-field spectroscopy from the…

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

The evolution of massive stars in general, massive close binaries in particular depend on processes where, despite many efforts, the physics are still uncertain. Here we discuss the effects of stellar wind as function of metallicity during…

天体物理学 · 物理学 2007-05-23 D. Vanbeveren

We study the evolution of embedded clusters. The equations of motion of the stars in the cluster are solved by direct N-body integration while taking the effects of stellar evolution and the hydrodynamics of the natal gas content into…

太阳与恒星天体物理 · 物理学 2015-06-03 F. I. Pelupessy , S. Portegies Zwart

State-of-the-art cosmological hydrodynamical simulations have star particles with typical mass between $\sim 10^8$ and $\sim 10^3$ M$_{\odot}$ according to resolution, and treat them as simple stellar populations. On the other hand,…

We perform a large set of radiation hydrodynamics simulations of primordial star formation in a fully cosmological context. Our statistical sample of 100 First Stars show that the first generation of stars have a wide mass distribution…

宇宙学与河外天体物理 · 物理学 2014-02-20 Shingo Hirano , Takashi Hosokawa , Naoki Yoshida , Hideyuki Umeda , Kazuyuki Omukai , Gen Chiaki , Harold W. Yorke

$Aims.$ 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)…

太阳与恒星天体物理 · 物理学 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
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