Results 11 to 20 of about 104,545 (289)
The Masses of Supernova Remnant Progenitors in M33
The Astrophysical Journal, 2023 Using resolved optical stellar photometry from the Panchromatic Hubble Andromeda Treasury Triangulum Extended Region survey, we measured the star formation history near the position of 85 supernova remnants (SNRs) in M33.
Brad Koplitz +9 more
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RR Lyrae Variables as Tracers of the Galactic Bulge Kinematic Structure
Universe, 2022 RR Lyrae stars are recognized as some of the oldest stars in the Universe. In addition, they are some of the few old celestial objects for which distances can be reliably inferred.
Andrea M. Kunder
doaj +1 more source
Stellar Population Models [PDF]
Proceedings 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
Binary Population and Spectral Synthesis Version 2.1: construction, observational verification and new results [PDF]
, 2017 The Binary Population and Spectral Synthesis (BPASS) suite of binary stellar evolution models and synthetic stellar populations provides a framework for the physically motivated analysis of both the integrated light from distant stellar populations and ...
. +8 more
core +2 more sources
Multiple Populations in Star Clusters
Universe, 2022 We review the multiple population (MP) phenomenon of globular clusters (GCs): i.e., the evidence that GCs typically host groups of stars with different elemental abundances and/or distinct sequences in photometric diagrams.
Antonino P. Milone, Anna F. Marino
doaj +1 more source
Stellar Populations in Spiral Galaxies [PDF]
, 2007 We report preliminary results of the characterization of bulge and inner disk stellar populations for 8 nearby spiral galaxies using Gemini/GMOS. The long-slit spectra extend out to 1-2 disk scale lengths with S/N/Ang > 50.
Courteau, Stephane +2 more
core +3 more sources
The Role of Bulge Formation in the Homogenization of Stellar Populations at $z\sim2$ as revealed by Internal Color Dispersion in CANDELS [PDF]
, 2015 We use data from the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey to study how the spatial variation in the stellar populations of galaxies relate to the formation of galaxies at $1.5 < z < 3.5$.
Boada, Steven +15 more
core +3 more sources
Light Elements in the Universe
Frontiers in Astronomy and Space Sciences, 2021 Due to their production sites, as well as to how they are processed and destroyed in stars, the light elements are excellent tools to investigate a number of crucial issues in modern astrophysics: from stellar structure and non-standard processes at work
Sofia Randich, Laura Magrini
doaj +1 more source
The Hubble Space Telescope UV Legacy Survey of galactic globular clusters. VI. The internal kinematics of the multiple stellar populations in NGC 2808 [PDF]
, 2015 Numerous observational studies have revealed the ubiquitous presence of multiple stellar populations in globular clusters and cast many hard challenges for the study of the formation and dynamical history of these stellar systems.
Anderson, J. +11 more
core +2 more sources
Stellar Populations in Barred Galaxies [PDF]
, 2009 We developed an iterative technique to better characterize stellar populations and the central activity of barred galaxies using evolutionary synthesis codes and OASIS data. The case of NGC5430 is presented here.
A. Pellerin +5 more
core +1 more source