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相关论文: Inclusion of Binaries in Evolutionary Population S…

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We present integrated colours, integrated spectral energy distributions, and absorption-line indices, for instantaneous burst solar-metallicity binary stellar populations with ages in the range 1 - 15Gyr. By comparing the results for…

天体物理学 · 物理学 2007-05-23 Fenghui Zhang , Zhanwen Han , Lifang Li , Jarrod R. Hurley

Using Yunnan evolutionary population synthesis (EPS) models, we present integrated colours, integrated spectral energy distributions (ISEDs) and absorption-line indices defined by the Lick Observatory image dissector scanner (Lick/IDS)…

太阳与恒星天体物理 · 物理学 2010-06-24 F. Zhang , Z. Han , L. Li

In our evolutionary population synthesis models, the samples of binaries are reproduced by the 'patched' Monte Carlo simulation and the stellar masses, integrated J, H, K, L, L2 and M magnitudes, mass-to-light ratios and broad colours…

太阳与恒星天体物理 · 物理学 2010-06-24 F. Zhang , L. Li , Z. Han

Single-star stellar population (ssSSP) models are usually used for stellar population studies. However, more than 50% of stars are in binaries and evolve differently from single stars. This suggests that the effects of binary interactions…

天体物理学 · 物理学 2009-11-13 Zhongmu Li , Zhanwen Han

Using EPS we present high resolution (0.3 \AA, HRes) ISEDs from 3000 to 7000 \AA and Lick/IDS absorption-line indices, for an extensive set of instantaneous burst binary stellar populations (BSPs) with binary interactions. The ages of the…

天体物理学 · 物理学 2009-11-13 Fenghui Zhang , Lifang Li , Zhanwen Han

More than about 50% stars of galaxies are in binaries, but most stellar population studies take single star-stellar population (ss-SSP) models, which do not take binary interactions into account. In fact, the integrated peculiarities of…

天体物理学 · 物理学 2007-12-17 Zhongmu Li , Zhanwen Han

More than about 50% stars are in binaries, but most stellar population studies take single star stellar population (ssSSP) models, which do not take binary interactions into account. In fact, the integrated peculiarities of ssSSPs are…

星系天体物理 · 物理学 2015-06-16 Zhongmu Li , Zhanwen Han

We present the integrated J, H, K, L, M and N magnitudes and the colours involving infrared bands, for an extensive set of instantaneous-burst binary stellar populations (BSPs) by using evolutionary population synthesis (EPS). By comparing…

太阳与恒星天体物理 · 物理学 2010-06-24 F. Zhang , L. Li , Z. Han

Using evolutionary population synthesis, we present integrated spectral energy distributions and absorption-line indices defined by the Lick Observatory image dissector scanner (referred to as Lick/IDS) system, for an extensive set of…

天体物理学 · 物理学 2007-05-23 Fenghui Zhang , Zhanwen Han , Lifang Li , Jarrod R. Hurley

Binaries are very common in galaxies, and more than half of Galactic hot subdwarf stars, which are thought as a possible origin of UV-upturn of old stellar populations, are found in binaries. Previous works showed that binary evolution can…

星系天体物理 · 物理学 2015-06-12 Zhongmu Li , Caiyan Mao , Li Chen , Qian Zhang , Maocai Li

Determining the properties of old stellar populations (those with age >1 Gyr) has long involved the comparison of their integrated light, either in the form of photometry or spectroscopic indexes, with empirical or synthetic templates. Here…

星系天体物理 · 物理学 2018-06-06 E R Stanway , J J Eldridge

Most stars are members of binaries, and the evolution of a star in a close binary system differs from that of an ioslated star due to the proximity of its companion star. The components in a binary system interact in many ways and binary…

太阳与恒星天体物理 · 物理学 2015-05-14 Z. Han , X. Chen , F. Zhang , Ph. Podsiadlowski

Evolutionary population synthesis models for a wide range of metallicities, ages, star formation histories, and Horizontal Branch morphologies, including blue morphologies at high metallicity, are computed. The energetics of the post Main…

天体物理学 · 物理学 2008-11-26 Claudia Maraston

Populations of massive stars are directly reflective of the physics of stellar evolution. Counting subtypes of massive stars and ratios of massive stars in different evolutionary states have been used ubiquitously as diagnostics of age and…

太阳与恒星天体物理 · 物理学 2018-11-14 Trevor Z. Dorn-Wallenstein , Emily M. Levesque

Asymptotic giant branch (AGB) stars are important to chemical evolution at metallicity $Z \sim 0.0001$ ($\text{[Fe/H]} \approx -2.2$) as they contribute significantly to the production of nitrogen, lead, and dust in the early Universe. The…

太阳与恒星天体物理 · 物理学 2026-01-14 Zara Osborn , Amanda Karakas , Devika Kamath , Robert Izzard , Alex Kemp , Chiaki Kobayashi

We performed a near-infrared (NIR, $\sim$1.0$\mu$m-2.4$\mu$m) stellar population study in a sample of early type galaxies. The synthesis was performed using five different evolutionary population synthesis libraries of models. Our main…

We present numerical models of the nebular emission from H II regions around young stellar populations over a range of compositions and ages. The synthetic stellar pop- ulations include both single stars and interacting binary stars. We…

星系天体物理 · 物理学 2018-03-28 Lin Xiao , Elizabeth Stanway , J. J. Eldridge

We present a rapid binary evolution algorithm that enables modelling of even the most complex binary systems. In addition to all aspects of single star evolution, features such as mass transfer, mass accretion, common-envelope evolution,…

天体物理学 · 物理学 2009-11-07 Jarrod R. Hurley , Christopher A. Tout , Onno R. Pols

Context: Field stars are not always single stars, but can often be found in bound double systems. Since binary frequencies in the birth places of stars, young embedded clusters, are sometimes even higher than on average the question arises…

星系天体物理 · 物理学 2015-05-27 Thomas Kaczmarek , Christoph Olczak , Susanne Pfalzner

We have constructed a new code to produce synthetic spectra of stellar populations that includes massive binaries. We have tested this code against the broadband colours of unresolved young massive stellar clusters in nearby galaxies, the…

宇宙学与河外天体物理 · 物理学 2015-05-13 John J. Eldridge , Elizabeth R. Stanway
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