Results 11 to 20 of about 171,691 (281)
STELLAR POPULATION VARIATIONS IN THE MILKY WAY's STELLAR HALO [PDF]
The Astronomical Journal, 2010 If the stellar halos of disk galaxies are built up from the disruption of dwarf galaxies, models predict highly structured variations in the stellar populations within these halos. We test this prediction by studying the ratio of blue horizontal branch stars (BHB stars; more abundant in old, metal-poor populations) to main-sequence turn-off stars (MSTO
Bell, Eric F. +4 more
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Distribution and Evolution of Metals in the Magneticum Simulations
Galaxies, 2017 Metals are ideal tracers of the baryonic cycle within halos. Their composition is a fossil record connecting the evolution of the various stellar components of galaxies to the interaction with the environment by in- and out-flows.
Klaus Dolag +2 more
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Unresolved versus resolved: testing the validity of young simple stellar population models with VLT/MUSE observations of NGC 3603 [PDF]
, 2016 CONTEXT. Stellar populations are the building blocks of galaxies including the Milky Way. The majority, if not all extragalactic studies are entangled with the use of stellar population models given the unresolved nature of their observation ...
Anderson, J. P. +4 more
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The Astrophysical Journal, 2023 We analyze TYPHOON long-slit-absorption line spectra of the starburst barred spiral galaxy NGC 1365 obtained with the Progressive Integral Step Method covering an area of 15 kpc ^2 .
Eva Sextl +8 more
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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 ...
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Investigation of the Stellar Population of Several Polar Ring Galaxies
Galaxies, 2016 We present results of our investigation of two multi-spin galaxies which were taken from the catalog of polar ring galaxies. All of them possess nucleus-like knots.
Liliya Shalyapina +4 more
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Challenges in Stellar Population Studies [PDF]
, 2009 The stellar populations of galaxies contain a wealth of detailed information. From the youngest, most massive stars, to almost invisible remnants, the history of star formation is encoded in the stars that make up a galaxy.
Arnaboldi +28 more
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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
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Panchromatic averaged stellar populations [PDF]
Monthly Notices of the Royal Astronomical Society, 2010 13 pages and 10 figures.
Riffel, R +4 more
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Streams on FIRE: Populations of Detectable Stellar Streams in the Milky Way and FIRE
The Astrophysical Journal, 2023 We present the first detailed comparison of populations of dwarf galaxy stellar streams in cosmological simulations and the Milky Way. In particular, we compare streams identified around 13 Milky Way analogs in the FIRE-2 simulations to streams observed ...
Nora Shipp +21 more
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