stellar populations
LINE STRENGTH MAPPING OF THE STELLAR POPULATIONS WITHIN ELLIPTICAL GALAXIES
... stellar population parameters of the outer regions by using the results obtained from the central regions. In this way we can increase the age–metallicity dis- entangling power of diagnostics relying on, for exam- ...
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Formation Pathways in Brightest Cluster Galaxies: Measuring the Distribution of Ages, Metallicities, and Hydrodynamics of Stellar Populations
... STARLIGHT stellar population code, of the variations in age and metallicity between different stellar populations within or near the ...The stellar populations of the BCG core were ...
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Realistic ionizing fluxes for young stellar populations from 0.05 to 2 ZÔ
... It is clear that the use of expanding non-LTE model atmospheres in the analysis of single and unresolved H ii re- gions is a major improvement over using static LTE models to represent hot massive stars. The empirical ...
21
HST and ground-based analysis of multiple stellar populations in globular clusters
... In principle, the He content of stellar populations in GCs can also be estimated using He lines in HB star spectra (e.g., the HeI line at λ = 5875.6 ˙ Aline, Villanova, Piotto & Gratton 2009; Villanova ...
150
The properties of the young stellar populations in powerful radio galaxies at low and intermediate redshifts
... the stellar populations in the early-type host galaxies of radio sources have the potential to provide key information about the na- tures and time-scales of the triggering ...lar populations (YSPs) ...
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Young stellar populations in type II quasars: timing the onset of star formation and nuclear activity
... the stellar populations of the host galaxies of 21 type II quasars, with the aim of understanding the sequence of events between the onset of the merger, the triggering of the associated starburst and the ...
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Reevaluating old stellar populations
... new stellar evolution pathways. In some recent work, the use of stellar models which evolve singly but while rotating at a substantial frac- tion of their break-up speed has been explored (for example, this ...
21
Three dynamically distinct stellar populations in the halo of M49
... parent stellar populations ...single stellar tracers to map the transition from the inner galaxy halo to the outer blue envelope in bright cluster ...
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Radio observations confirm young stellar populations in local analogues to z ~5 Lyman break galaxies
... dominant stellar population, which has not yet established a strong supernova-driven synchrotron ...to stellar populations younger than 100 ...young stellar populations, it is unclear ...
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Virgo and the Stellar Populations of Planets
... Stellar populations contain the histories of evolution of the baryonic components of ...multiple stellar population components projected along each sightline, effects of interstellar dust on observed ...
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Gallazzi, Anna (2006): Modeling and interpretation of galaxy spectra: the stellar populations of nearby galaxies. Dissertation, LMU München: Fakultät für Physik
... The inclusion of all these processes can be done through hydrodynamical simulations, following directly the gas dynamics. In the Smoothed Particle Hydrodynamics (SPH) technique gas particles are gravitationally bound to ...
193
Diverse young stellar populations in the intermediate-redshift radio galaxies 3C 213.1 and 3C 459: implications for the evolution of the host galaxies
... young stellar populations (YSP) make a major con- tribution to the integrated optical light in both sources, contributing at least 37 and 80 per cent of the integrated B-band light in 3C ...total ...
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The XXL Survey : XXX Characterisation of the XLSSsC N01 supercluster and analysis of the galaxy stellar populations
... of stellar popu- lation properties of galaxies that inhabit such ...greater stellar mass content and longer timescales for star formation than the typical values found in groups outside superclusters, ...
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The dark and luminous structure of early type galaxies : observational dynamics and stellar populations
... I note however that a number of outstanding problems exist for Λ CDM on the scales of galaxies and galaxy clusters. The first of these is the so-called "missing sattelites problem", in which Λ CDM models predict ...
220
The CIDA Variability Survey of Orion OB1. II. Demographics of the Young, Low-mass Stellar Populations
... the temperature at the base of the convective envelope in a solar-type star at the ZAMS ( Siess et al. 2000 ) , lithium is steadily depleted during the PMS phase in low-mass stars, and its surface abundance decreases ...
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Stellar populations and ages of M82 super star clusters
... Quantitative models now exist for spectra of single-age, solar- metallicity star clusters that formed over short time-scales. We used the results from the spectral synthesis code `Projet d'Etude des Galaxies par ...
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Signatures of the r process in Ancient Stellar Populations Using Barium Abundances
... The Zwicky Transient Facility (ZTF) is a next-generation, optical, synoptic survey that leverages the success of the Palomar Transient Factory (PTF). ZTF has a large science focal plane (SFP) that needs to be aligned ...
152
Understanding sub-stellar populations using wide-field infrared surveys
... By accounting for the main sources of incompleteness (selection, follow-up and spatial) as well as the effects of unresolved binarity, Malmquist and Eddington bias, the number of T dwarfs in our sample is most consistent ...
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Structure, kinematics, and ages of the young stellar populations in the Orion region
... The main result of this work is that the star formation history of the Orion region is complex and fragmentary. The Orion region is composed of many subgroups with di ff erent kinematic prop- erties. Star formation ...
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Young stellar populations in the Antennae galaxies
... resolution stellar + nebular templates suitable for modelling the optical spectra of high-SFR regions.!. Our goal:![r] ...
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