Results 11 to 20 of about 21,097 (138)

Massive Star Clusters in Dwarf Galaxies [PDF]

open access: yesProceedings of the International Astronomical Union, 2015
Dwarf galaxies can have very high globular cluster specific frequencies, and the GCs are in general significantly more metal-poor than the bulk of the field stars. In some dwarfs, such as Fornax, WLM, and IKN, the fraction of metal-poor stars that belong
S. Larsen
semanticscholar   +1 more source

The Hierarchical Distribution of the Young Stellar Clusters in Six Local Star-forming Galaxies [PDF]

open access: yes, 2017
We present a study of the hierarchical clustering of the young stellar clusters in six local (3–15 Mpc) star-forming galaxies using Hubble Space Telescope broadband WFC3/UVIS UV and optical images from the Treasury Program LEGUS (Legacy ExtraGalactic UV ...
K. Grasha   +19 more
semanticscholar   +1 more source

A general framework to test gravity using galaxy clusters VI: Realistic galaxy formation simulations to study clusters in modified gravity [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2021
We present a retuning of the IllustrisTNG baryonic physics model which can be used to run large-box realistic cosmological simulations with a lower resolution. This new model employs a lowered gas density threshold for star formation and reduced energy
Myles A Mitchell, C. Arnold, Baojiu Li
semanticscholar   +1 more source

Targeted decrease of portal hepatic pressure gradient improves ascites control after TIPS

open access: yesHepatology, EarlyView., 2022
The river diagram demonstrates that after transjugular intrahepatic portosystemic shunt insertion (TIPS) the majority of patients without ascites and 50% of the patients with ascites detectable at ultrasound, show the best response in the long term follow‐up.
Alexander Queck   +14 more
wiley   +1 more source

A Comparison between the Morphologies and Structures of Dwarf Galaxies with and without Active Massive Black Holes [PDF]

open access: yesAstrophysical Journal, 2023
We study the morphologies and structures of 57 dwarf galaxies that are representative of the general population of dwarf galaxies and compare their demographics to a sample of dwarf galaxies hosting optically selected active galactic nuclei (AGNs).
S. Kimbrell   +3 more
semanticscholar   +1 more source

THE LUMINOSITY FUNCTION OF STAR CLUSTERS IN 20 STAR-FORMING GALAXIES BASED ON HUBBLE LEGACY ARCHIVE PHOTOMETRY [PDF]

open access: yes, 2014
Luminosity functions (LFs) have been determined for star cluster populations in 20 nearby (4–30 Mpc), star-forming galaxies based on Advanced Camera for Surveys source lists generated by the Hubble Legacy Archive (HLA). These cluster catalogs provide one
B. Whitmore   +6 more
semanticscholar   +1 more source

The environment of Lyman break analogues (ELBA) survey: star-forming galaxies in small groups [PDF]

open access: yes, 2020
The Environment of Lyman Break Analogues (ELBA) survey is an imaging survey of 33 $deg^{2}$ of the southern sky. The survey was observed in {\it u}, {\it g}, {\it r}, and {\it i} bands with the Dark Energy Camera (DECam) on the Blanco telescope. The main
L. Santana-Silva   +9 more
semanticscholar   +1 more source

Environmental effects on star formation in dwarf galaxies and star clusters [PDF]

open access: yes, 2014
We develop a simple analytical criterion to investigate the role of the environment on the onset of star formation. We will consider the main external agents that influence the star formation (i.e.
S. Pasetto   +4 more
semanticscholar   +1 more source

3 things they don’t tell you about star clusters [PDF]

open access: yesProceedings of the International Astronomical Union, 2019
Dense stellar systems in general and star clusters in particular have recently regained the interest of the extragalactic and even cosmology communities, due to the role they could play as actors and probes of re-ionization, galactic archeology and the ...
F. Renaud
semanticscholar   +1 more source

Early Bright Galaxies from Helium Enhancements in High-Redshift Star Clusters [PDF]

open access: yesThe Open Journal of Astrophysics
The first few cycles of JWST have identified an overabundance of UV-bright galaxies and a general excess of UV luminosity density at z≳10 compared to expectations from most (pre-JWST) theoretical models.
H. Katz   +3 more
semanticscholar   +1 more source

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