Results 81 to 90 of about 288,605 (224)

JWST Observations of Starbursts: Massive Star Clusters in the Central Starburst of M82

The Astrophysical Journal Letters
We present a near-infrared (NIR) candidate star cluster catalog for the central kiloparsec of M82 based on new JWST NIRCam images. We identify star cluster candidates using the F250M filter, finding 1357 star cluster candidates with stellar masses >10 ^4
Rebecca C. Levy, Alberto D. Bolatto, Divakara Mayya, Bolivia Cuevas-Otahola, Elizabeth Tarantino, Martha L. Boyer, Leindert A. Boogaard, Torsten Böker, Serena A. Cronin, Daniel A. Dale, Keaton Donaghue, Kimberly L. Emig, Deanne B. Fisher, Simon C. O. Glover, Rodrigo Herrera-Camus, María J. Jiménez-Donaire, Ralf S. Klessen, Laura Lenkić, Adam K. Leroy, Ilse De Looze, David S. Meier, Elisabeth A. C. Mills, Juergen Ott, Mónica Relaño, Sylvain Veilleux, Vicente Villanueva, Fabian Walter, Paul P. van der Werf   +27 more
doaj   +1 more source

The Evolution of Substructure during Star Cluster Assembly

The Astrophysical Journal
Star cluster formation and assembly occur inside filamentary and turbulent molecular clouds, which imprint both spatial and kinematic substructure on the young cluster.
Edwin Laverde-Villarreal, Alison Sills, Claude Cournoyer-Cloutier, Veronica Arias Callejas   +3 more
doaj   +1 more source

The Evaporating Massive Embedded Stellar Cluster IRS 13 Close to Sgr A*. I. Detection of a Rich Population of Dusty Objects in the IRS 13 Cluster

The Astrophysical Journal, 2023
A detailed analysis of the nuclear star cluster not only concedes the existence of the S cluster, with its fast-moving stars and the supermassive black hole Sgr A*.
Florian Peißker, Michal Zajaček, Lauritz Thomkins, Andreas Eckart, Lucas Labadie, Vladimír Karas, Nadeen B. Sabha, Lukas Steiniger, Maria Melamed   +8 more
doaj   +1 more source

The M/L ratio of massive young clusters

, 2005
We point out a strong time-evolution of the mass-to-light conversion factor \eta commonly used to estimate masses of dense star clusters from observed cluster radii and stellar velocity dispersions. We use a gas-dynamical model coupled with the Cambridge
A. Lançon, C. M. Boily, D. C. Heggie, Giersz M., Heggie D. C., Kroupa P., Larson R. B., Louis P. D., Lynden-Bell D., S. Deiters, Scalo J. M., Spurzem R.   +11 more
core   +1 more source

The location, clustering, and propagation of massive star formation in giant molecular clouds [PDF]

, 2016
Massive stars are key players in the evolution of galaxies, yet their formation pathway remains unclear. In this work, we use data from several galaxy-wide surveys to build an unbiased dataset of ~700 massive young stellar objects (MYSOs), ~200 giant ...
Chastenet, J., Meixner, M., Ochsendorf, B. B., Roman-Duval, J., Tielens, A. G. G. M.   +4 more
core   +3 more sources

Massive Star Cluster Formation with Binaries. I. Evolution of Binary Populations

The Astrophysical Journal
We study the evolution of populations of binary stars within massive cluster-forming regions. We simulate the formation of young massive star clusters within giant molecular clouds with masses ranging from 2 × 10 ^4 to 3.2 × 10 ^5 M _⊙ .
Claude Cournoyer-Cloutier, Alison Sills, William E. Harris, Brooke Polak, Steven Rieder, Eric P. Andersson, Sabrina M. Appel, Mordecai-Mark Mac Low, Stephen McMillan, Simon Portegies Zwart   +9 more
doaj   +1 more source

Resolved photometry of extragalactic young massive star clusters

, 2011
We present colour-magnitude diagrams (CMDs) for a sample of seven young massive clusters in the galaxies NGC 1313, NGC 1569, NGC 1705, NGC 5236 and NGC 7793. The clusters have ages in the range 5-50 million years and masses of 10^5 -10^6 Msun.
A. Seth, Anders, Barmina, Bastian, Bekki, Bertelli, Bono, Bresolin, Brott, Brott, Carignan, Cignoni, Claeys, Conroy, Dalcanton, Davies, Dohm-Palmer, Dohm-Palmer, D’Antona, Edmunds, Efremov, Eggenberger, Eldridge, Eldridge, Eldridge, Elson, Fischer, Fischer, Fouesneau, Gallart, Girardi, Girardi, Girardi, Grevesse, Grocholski, Hennekemper, Hillebrandt, Hirschi, Israel, J. Brodie, J. J. Eldridge, Kiminki, Kobulnicky, Kraft, Kroupa, L. J. Smith, Langer, Larsen, Larsen, Larsen, Lee, Lejeune, Lyubimkov, Mackey, Maeder, Maeder, Maraston, Mason, Matraka, Maund, Milone, Mora, Méndez, N. Bastian, N. Langer, Norris, Origlia, O’Connell, Palmieri, Penny, Perina, Pflamm-Altenburg, Pinsonneault, Piotto, Pols, Renzini, Ritossa, S. E. de Mink, S. S. Larsen, Salaris, Salasnich, Sana, Sandage, Sansom, Schlegel, Silva-Villa, Silva-Villa, Stetson, Taam, Thim, Tosi, Vazquez, Vink, Vinkó, Walborn, Walsh, Westmoquette, Woosley, Yu. N. Efremov   +98 more
core   +2 more sources

The Young Massive Stellar Cluster Associated with RCW 121

The Astronomical Journal, 2006
We report NIR broad and narrow band photometric observations in the direction of the IRAS17149-3916 source that reveal the presence of a young cluster of massive stars embedded in an HII region coincident with RCW121. These observations, together with published radio data, MSX and Spitzer images were used to determine some of the physical parameters of
Roman-Lopes, Alexandre, Abraham, Zulema
openaire   +2 more sources

Phenomenological description of young massive star clusters [PDF]

Proceedings of The 34th International Cosmic Ray Conference — PoS(ICRC2015), 2016
The most massive stars appear grouped in giant molecular clouds. Their strong wind activity generates large structures known as super bubbles and induces collective effects which could accelerate particles up to the high energy and produce gamma-rays.
Giovanni Lamanna, Fabien Krayzel, Alexandre Marcowith, Gilles Maurin, Nukri Komin   +4 more
openaire   +1 more source

Accretion Signatures from Massive Young Stellar Objects

, 2004
High resolution (lambda / Delta-lambda = 50,000) K-band spectra of massive, embedded, young stellar objects are presented. The present sample consists of four massive young stars located in nascent clusters powering Galactic giant H II regions.
A. Damineli, C. L. Barbosa, Kessel O., Kraus M., P. S. Conti, Phillips C. J., R. D. Blum, Richling S., S. Ridgway, Smith L. F.   +9 more
core   +2 more sources