Results 11 to 20 of about 4,695 (264)

Stellar populations

open access: yesOpen Astronomy, 1999
Wyse Rosemary F. G.
doaj   +2 more sources

Stellar populations with ELTs [PDF]

open access: yesProceedings of the International Astronomical Union, 2005
The star formation, mass assembly and chemical enrichment histories of galaxies, and their present distributions of dark matter, remain encoded in their stellar populations. Distinguishing the actual distribution functions of stellar age, metallicity and kinematics at several locations in a range of galaxies, sampling across Hubble types and ...
Wyse, Rosemary F. G., Gilmore, Gerard
openaire   +2 more sources

The Evolution of Stellar Populations [PDF]

open access: yesAstrophysics and Space Science, 2001
10 pages, no figures, To appear in Proceedings of First Euroconference "The Evolution of Galaxies. I-Observational Clues" (Astrophys. & Sp. Sc., Vilchez, Stasinska, and Perez, eds. Kluwer)
Díaz Beltrán, Ángeles Isabel   +1 more
openaire   +3 more sources

Stellar Population Models [PDF]

open access: yesProceedings of the International Astronomical Union, 2006
AbstractModelling stellar populations in galaxies is a key approach to gain knowledge on the still elusive process of galaxy formation as a function of cosmic time. In this review, after a summary of the state-of-art, I discuss three aspects of the modelling, that are particularly relevant to massive galaxies, the focus of this symposium, at low and ...
openaire   +4 more sources

The Stellar Population of M17

open access: yesThe Astrophysical Journal, 2008
The stellar content of M17 has been investigated by multicolor photometry and spectroscopy. Various independent estimates yield a distance of 2.1 ± 0.2 kpc. The ratio of total-to-selective extinction is R = 3.9. Within a projected area of 3.6 × 3.7 pc, there are several thousand stars.
Hoffmeister, V. H.   +6 more
openaire   +3 more sources

Synthetic stellar populations: single stellar populations, stellar interior models and primordial protogalaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2004
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 codes in a number of important ways, namely (1) the incorporation of new stellar evolutionary tracks, with ...
Jimenez, Raul   +4 more
openaire   +2 more sources

Stellar populations in HII galaxies [PDF]

open access: yesProceedings of the International Astronomical Union, 2004
We analyse the stellar content of a large number of HII galaxies from the continua and absorption features of their spectra using population synthesis methods, in order to gain information about the star formation histories of these objects. We find that all galaxies of our sample contain an old stellar population (>= 1 Gyr) that dominates the ...
Westera, P.   +3 more
openaire   +3 more sources

Stellar populations of shell galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2017
Submitted to MNRAS.
Carlsten, S., Hau, G. K. T., Zenteno, A.
openaire   +2 more sources

Nitrogen-enriched, Highly Pressurized Nebular Clouds Surrounding a Super Star Cluster at Cosmic Noon

open access: yesThe Astrophysical Journal, 2023
Strong lensing offers a precious opportunity for studying the formation and early evolution of super star clusters that are rare in our cosmic backyard.
Massimo Pascale   +3 more
doaj   +1 more source

New Generation Stellar Spectral Libraries in the Optical and Near-infrared. I. The Recalibrated UVES-POP Library for Stellar Population Synthesis

open access: yesThe Astrophysical Journal Supplement Series, 2023
We present reprocessed flux-calibrated spectra of 406 stars from the UVES-POP stellar library in the wavelength range 320–1025 nm, which can be used for stellar population synthesis.
Sviatoslav B. Borisov   +10 more
doaj   +1 more source

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