Results 21 to 30 of about 165,855 (235)

Binary Stellar Population Synthesis Model

open access: yes, 2010
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) system, for an ...
Han, Z., Li, L., Zhang, F.
core   +1 more source

On surface brightness fluctuations: probabilistic and statistical bases I: Stellar population and theoretical SBF

open access: yes, 2008
This work aims to provide a theoretical formulation of Surface Brightness Fluctuations (SBF) in the framework of probabilistic synthesis models, and to distinguish between the different distributions involved in the SBF definition.
Ajhar   +34 more
core   +1 more source

RCW36: characterizing the outcome of massive star formation [PDF]

open access: yes, 2013
Massive stars play a dominant role in the process of clustered star formation, with their feedback into the molecular cloud through ionizing radiation, stellar winds and outflows.
Balog, Z.   +8 more
core   +5 more sources

Hubble Space Telescope Imaging of the Ultra-Compact High Velocity Cloud AGC 226067: A stripped remnant in the Virgo Cluster

open access: yes, 2017
We analyze the optical counterpart to the ultra-compact high velocity cloud AGC 226067, utilizing imaging taken with the Advanced Camera for Surveys (ACS) on the Hubble Space Telescope.
Adams, E. A. K.   +12 more
core   +1 more source

Galaxy modelling through stellar population synthesis

open access: yesEPJ Web of Conferences, 2012
In recent years, models of the Galaxy based on the spirit of population synthesis have considerably helped to improve our knowledge on the Galaxy and its formation scenario.
Robin A.C.
doaj   +1 more source

The Carnegie-Irvine Galaxy Survey. X. Bulges in Stellar Mass–based Scaling Relations

open access: yesThe Astrophysical Journal Supplement Series, 2022
We measure optical colors for the bulges of 312 disk galaxies from the Carnegie-Irvine Galaxy Survey and convert their previously available R -band structural parameters to stellar-mass parameters.
Hua Gao, Luis C. Ho, Zhao-Yu Li
doaj   +1 more source

Integrated spectral energy distributions of binary star composite stellar populations

open access: yes, 2012
This paper presents theoretical integrated spectral energy distributions (SEDs) of binary star composite stellar populations (bsCSPs) in early-type galaxies, and how the bsCSP model can be used for spectral studies of galaxies.
Belkus   +45 more
core   +1 more source

The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada

open access: yesPopulation Ecology, EarlyView.
We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley   +1 more source

The Chemodynamical Nature of the Triangulum–Andromeda Overdensity

open access: yesThe Astrophysical Journal, 2023
We present a chemodynamical study of the Triangulum–Andromeda overdensity (TriAnd) employing a sample of 31 candidate stars observed with the GRACES high-resolution ( R = 40,000) spectrograph at the Gemini North (8.1 m) telescope.
Yuri Abuchaim   +9 more
doaj   +1 more source

The Galaxy Population of Abell 1367: The Stellar Mass-Metallicity Relation

open access: yes, 2011
Using wide baseline broad-band photometry, we analyse the stellar population properties of a sample of 72 galaxies, spanning a wide range of stellar masses and morphological types, in the nearby spiral-rich and dynamically young galaxy cluster Abell 1367.
Balogh   +84 more
core   +1 more source

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