Results 21 to 30 of about 288,605 (224)

The formation of young massive clusters by colliding flows [PDF]

Monthly Notices of the Royal Astronomical Society: Letters, 2020
Young massive clusters (YMCs) are the most intense regions of star formation in galaxies. Formulating a model for YMC formation while at the same time meeting the constraints from observations is, however, highly challenging.
C. Dobbs, K. Y. Liow, S. Rieder
semanticscholar   +1 more source

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

The 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, Rupali Chandar, M. Jimena Rodríguez, Janice C. Lee, Eric Emsellem, Matthew Floyd, Hwihyun Kim, J. M. Diederik Kruijssen, Angus Mok, Mattia C. Sormani, Médéric Boquien, Daniel A. Dale, Christopher M. Faesi, Kiana F. Henny, Stephen Hannon, David A. Thilker, Richard L. White, Ashley T. Barnes, F. Bigiel, Mélanie Chevance, Jonathan D. Henshaw, Ralf S. Klessen, Adam K. Leroy, Daizhong Liu, Daniel Maschmann, Sharon E. Meidt, Erik Rosolowsky, Eva Schinnerer, Jiayi Sun, Elizabeth J. Watkins, Thomas G. Williams   +30 more
doaj   +1 more source

The role of collision speed, cloud density, and turbulence in the formation of young massive clusters via cloud–cloud collisions [PDF]

, 2020
Young massive clusters (YMCs) are recently formed astronomical objects with unusually high star formation rates. We propose the collision of giant molecular clouds (GMCs) as a likely formation mechanism of YMCs, consistent with the YMC conveyor-belt ...
K. Y. Liow, C. Dobbs
semanticscholar   +1 more source

Extremely massive young clusters in NGC 1365 [PDF]

Astronomy & Astrophysics, 2008
In a previous work, three bright MIR/radio sources were discovered in the nuclear region of NGC1365. We here confirm that these sources are young and massive ``embedded'' clusters, and derive their parameters, such as extinction, age and mass. Using ISAAC and VISIR at the VLT we obtained NIR and MIR maps and LR spectra. The dataset is first interpreted
Galliano, E., Alloin, D., Pantin, E., Granato, G. L., Delva, P., Silva, L., Lagage, P. O., Panuzzo, P.   +7 more
openaire   +3 more sources

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

The 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, Miranda Caputo, Angus Mok, Sean Linden, Bradley C. Whitmore, Aimee Toscano, Jaidyn Conyer, David O. Cook, Janice C. Lee, Leonardo Ubeda, Richard White   +10 more
doaj   +1 more source

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

The 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, Dan Coe, Adi Zitrin, Jose M. Diego, Rogier Windhorst, Nir Mandelker, Eros Vanzella, Swara Ravindranath, Erik Zackrisson, Michael Florian, Larry Bradley, Keren Sharon, Maruša Bradač, Jane Rigby, Brenda Frye, Seiji Fujimoto   +15 more
doaj   +1 more source

HOW TO FIND YOUNG MASSIVE CLUSTER PROGENITORS [PDF]

The Astrophysical Journal, 2012
We propose that bound, young massive stellar clusters form from dense clouds that have escape speeds greater than the sound speed in photo-ionized gas. In these clumps, radiative feedback in the form of gas ionization is bottled up, enabling star formation to proceed to sufficiently high efficiency so that the resulting star cluster remains bound even ...
Bressert E, Ginsburg A, Bally J, Battersby C, Longmore S, Testi L   +5 more
openaire   +2 more sources

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

The 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, Stephen L. W. McMillan, Mordecai-Mark Mac Low, Claude Cournoyer-Cloutier, Brooke Polak, Martijn J. C. Wilhelm, Aaron Tran, Alison Sills, Simon Portegies Zwart, Ralf S. Klessen, Joshua E. Wall   +10 more
doaj   +1 more source

On the survivability of planets in young massive clusters and its implication of planet orbital architectures in globular clusters [PDF]

Monthly notices of the Royal Astronomical Society, 2019
As of 2019 August, among the more than 4000 confirmed exoplanets, only one has been detected in a globular cluster (GC) M4. The scarce of exoplanet detections motivates us to employ direct N-body simulations to investigate the dynamical stability of ...
Maxwell X. Cai, S. Zwart, M. Kouwenhoven, R. Spurzem   +3 more
semanticscholar   +1 more source

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

The 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, Michal Zajaček, Nadeen B. Sabha, Masato Tsuboi, Jihane Moultaka, Lucas Labadie, Andreas Eckart, Vladimír Karas, Lukas Steiniger, Matthias Subroweit, Anjana Suresh, Maria Melamed, Yann Clénet   +12 more
doaj   +1 more source