Results 1 to 10 of about 190,685 (145)

Young Massive Star Clusters

open access: yesAnnual Review of Astronomy and Astrophysics, 2010
Young massive clusters are dense aggregates of young stars that form the fundamental building blocks of galaxies. Several examples exist in the Milky Way Galaxy and the Local Group, but they are particularly abundant in starburst and interacting galaxies.
Simon Portegies Zwart, Mark Gieles
exaly   +3 more sources

A cosmic-ray loaded nascent outflow driven by a massive star cluster [PDF]

open access: yesNature Communications
Cosmic rays are widely held to drive outflows from star-forming galaxies and profoundly influence galaxy evolution. Direct evidence for cosmic-ray carrying outflows is however lacking.
Marianne Lemoine-Goumard   +8 more
doaj   +2 more sources

PHANGS–JWST First Results: Massive Young Star Clusters and New Insights from JWST Observations of NGC 1365

open access: yesThe Astrophysical Journal Letters, 2023
A primary new capability of JWST is the ability to penetrate the dust in star-forming galaxies to identify and study the properties of young star clusters that remain embedded in dust and gas. In this Letter we combine new infrared images taken with JWST
Bradley C. Whitmore   +30 more
doaj   +1 more source

A Tale of Three Dwarfs: No Extreme Cluster Formation in Extreme Star-forming Galaxies

open access: yesThe Astrophysical Journal, 2023
Nearly all current simulations predict that outcomes of the star formation process, such as the fraction of stars that form in bound clusters (Γ), depend on the intensity of star formation activity (Σ _SFR ) in the host galaxy.
Rupali Chandar   +10 more
doaj   +1 more source

RELICS: Small-scale Star Formation in Lensed Galaxies at z = 6–10

open access: yesThe Astrophysical Journal, 2023
Detailed observations of star-forming galaxies at high redshift are critical to understanding the formation and evolution of the earliest galaxies. Gravitational lensing provides an important boost, allowing observations at physical scales unreachable in
Brian Welch   +15 more
doaj   +1 more source

Early-forming Massive Stars Suppress Star Formation and Hierarchical Cluster Assembly

open access: yesThe Astrophysical Journal, 2023
Feedback from massive stars plays an important role in the formation of star clusters. Whether a very massive star is born early or late in the cluster formation timeline has profound implications for the star cluster formation and assembly processes. We
Sean C. Lewis   +10 more
doaj   +1 more source

X3: A High-mass Young Stellar Object Close to the Supermassive Black Hole Sgr A*

open access: yesThe Astrophysical Journal, 2023
To date, the proposed observation of young stellar objects (YSOs) in the Galactic center still raises the question of where and how these objects could have formed due to the violent vicinity of Sgr A*.
Florian Peißker   +12 more
doaj   +1 more source

Gravitational waves from coalescing massive black holes in young dense clusters [PDF]

open access: yes, 2006
HST observations reveal that young massive star clusters form in gas-rich environments like the Antenn{\ae} galaxy which will merge in collisional processes to form larger structures.
Amaro-Seoane, Pau
core   +5 more sources

An HST Study of the Substellar Population of NGC 2024

open access: yesThe Astrophysical Journal, 2023
We performed an HST/WFC3-IR imaging survey of the young stellar cluster NGC 2024 in three filters probing the 1.4 μ m H _2 O absorption feature, characteristic of the population of low-mass and substellar-mass objects down to a few Jupiter masses.
Massimo Robberto   +8 more
doaj   +1 more source

From the Top Down and Back Up Again: Star Cluster Structure from Hierarchical Star Formation [PDF]

open access: yes, 2018
Young massive star clusters spanning $\sim 10^4 - 10^8 M_\odot$ in mass have been observed to have similar surface brightness profiles. Recent hydrodynamical simulations of star cluster formation have also produced star clusters with this structure.
Boylan-Kolchin, Michael   +6 more
core   +2 more sources

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