Results 1 to 10 of about 1,811,299 (294)
Re-evaluating old stellar populations [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 20 pages. MNRAS (in press). Paper accompanies v2.2 release of the Binary Population and Spectral Synthesis (BPASS) models at http://bpass.auckland.ac.nz or http://warwick.ac.uk ...
J J Eldridge, Elizabeth Stanway
exaly +5 more sources
Stellar Populations of the Galactic Disk: Metallicity Distribution and Kinematics
Open Astronomy, 2003 Metallicities and distances have been determined from Vilnius photometry for an in situ sample of nearly 650 stars in eight proper-motion fields at high Galactic latitudes.
Bartašiūtė S. +5 more
doaj +2 more sources
Hot Stars in Stellar Populations of Galaxies
GalaxiesStar-forming galaxies are hosts of dominant populations of recently formed, hot, massive stars, which give rise to conspicuous stellar spectral features and provide the ionizing fluxes. Strong outflows of these stars shape their properties.
Claus Leitherer
doaj +3 more sources
Stellar populations with ELTs [PDF]
Proceedings 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
A Multiwavelength Classification and Study of Red Supergiant Candidates in NGC 6946
The Astrophysical Journal, 2023 We have combined resolved stellar photometry from Hubble Space Telescope (HST), Spitzer, and Gaia to identify red supergiant (RSG) candidates in NGC 6946, based on their colors, proper motions, visual morphologies, and spectral energy distributions.
Jared R. Johnson +5 more
doaj +1 more source
The Evolution of Stellar Populations [PDF]
Astrophysics 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
Origins of the Evil Eye: M64's Stellar Halo Reveals the Recent Accretion of an SMC-mass Satellite
The Astrophysical Journal Letters, 2023 M64, often called the “Evil Eye” galaxy, is unique among local galaxies. Beyond its dramatic, dusty nucleus, it also hosts an outer gas disk that counter-rotates relative to its stars.
Adam Smercina +11 more
doaj +1 more source
Multiple Stellar Populations at Less Evolved Stages. III. A Possible Helium Spread in NGC 2210
The Astrophysical Journal, 2023 Helium variations are common features of globular clusters (GCs) with multiple stellar populations. All the formation scenarios predict that secondary population stars are enhanced in helium, but the exact helium content depends on the polluters ...
Chengyuan Li +8 more
doaj +1 more source
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
doaj +1 more source