Results 1 to 10 of about 21,097 (138)

Star Cluster Demographics. I. A General Framework and Application to the Antennae Galaxies [PDF]

The Astronomical Journal, 2007
We present a framework for understanding the demographics of star cluster systems, and develop a toy model which incorporates a universal initial power law mass function, selected formation histories, selected disruption laws, and a convolution with common artifacts and selection effects found in observational data. The model confirms that the observed
Whitmore, Bradley C., Chandar, Rupali, Fall, S. Michael   +2 more
openaire   +4 more sources

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

Nat Commun
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.
Lemoine-Goumard M, Härer L, Mohrmann L, Bernet R, Hinton J, Peron G, Reville B, Tibaldo L, Vieu T.   +8 more
europepmc   +2 more sources

The X-Ray Binary-star Cluster Connection in Late-type Galaxies [PDF]

Astrophysical Journal, 2023
We conduct one of the largest systematic investigations of bright X-ray binaries (XRBs) in both young star clusters and ancient globular clusters (GCs) using a sample of six nearby star-forming galaxies.
Q. Hunt, R. Chandar, E. Gallo, M. Floyd, T. Maccarone, D. Thilker   +5 more
semanticscholar   +1 more source

Search strategies for supermassive stars in young clusters and application to nearby galaxies [PDF]

Astronomy & Astrophysics, 2023
Supermassive stars (SMS) with masses $M \gtrsim 10^3-10^4 M_{\odot}$, formed by runaway collisions in young, massive, and dense star clusters have been invoked as a possible solution to the puzzles raised by the presence of multiple stellar populations ...
A. Kuruvanthodi, D. Schaerer, M. Messa, A. Adamo, C. Usher, C. Charbonnel, R. Marques-Chaves   +6 more
semanticscholar   +1 more source

Tidal disruption of star clusters in galaxy formation simulations [PDF]

Monthly notices of the Royal Astronomical Society, 2022
We investigate the evolution of the tidal field experienced by massive star clusters using cosmological simulations of Milky Way-sized galaxies.
X. Meng, O. Gnedin
semanticscholar   +1 more source

nProFit: A Tool for Fitting the Surface Brightness Profiles of Star Clusters with Dynamical Models [PDF]

Publications of the Astronomical Society of the Pacific, 2022
The surface brightness profiles (SBPs) of star clusters hold invaluable information on the dynamical state of clusters. The observed SBPs of star clusters, especially that of globular clusters, are in good agreement with the SBPs expected for isothermal ...
B. Cuevas-Otahola, Y. Mayya, I. Puerari, D. Rosa-González   +3 more
semanticscholar   +1 more source

Star Formation History and Transition Epoch of Cluster Galaxies Based on the Horizon-AGN Simulation [PDF]

Astrophysical Journal, 2022
Cluster galaxies exhibit substantially lower star formation rates than field galaxies today, but it is conceivable that clusters were sites of more active star formation in the early universe.
Seyoung Jeon, S. Yi, Y. Dubois, A. Chung, J. Devriendt, San Han, R. A. Jackson, T. Kimm, C. Pichon, J. Rhee   +9 more
semanticscholar   +1 more source

The Next Generation Fornax Survey (NGFS): VII. A MUSE view of the nuclear star clusters in Fornax dwarf galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2020
ABSTRACT Clues to the formation and evolution of nuclear star clusters (NSCs) lie in their stellar populations. However, these structures are often very faint compared to their host galaxy, and spectroscopic analysis of NSCs is hampered by contamination of light from the rest of the system.
Johnston, Evelyn J., Puzia, Thomas H., D’Ago, Giuseppe, Eigenthaler, Paul, Galaz, Gaspar, Häußler, Boris, Mora, Marcelo D., Ordenes-Briceño, Yasna, Rong, Yu, Spengler, Chelsea, Vogt, Frédéric, Côté, Patrick, Grebel, Eva K., Hilker, Michael, Mieske, Steffen, Miller, Bryan, Sánchez-Janssen, Ruben, Taylor, Matthew A., Zhang, Hong-Xin   +18 more
openaire   +3 more sources

The Next Generation Virgo Cluster Survey. XXIII. Fundamentals of Nuclear Star Clusters over Seven Decades in Galaxy Mass [PDF]

The Astrophysical Journal, 2019
Abstract Using deep, high-resolution optical imaging from the Next Generation Virgo Cluster Survey, we study the properties of nuclear star clusters (NSCs) in a sample of nearly 400 quiescent galaxies in the core of Virgo with stellar masses 105 ≲  /
Rubén Sánchez-Janssen, Patrick Côté, Laura Ferrarese, Eric W. Peng, Joel Roediger, John P. Blakeslee, Eric Emsellem, Thomas H. Puzia, Chelsea Spengler, James Taylor, Karla A. Álamo-Martínez, Alessandro Boselli, Michele Cantiello, Jean-Charles Cuillandre, Pierre-Alain Duc, Patrick Durrell, Stephen Gwyn, Lauren A. MacArthur, Ariane Lançon, Sungsoon Lim, Chengze Liu, Simona Mei, Bryan Miller, Roberto Muñoz, J. Christopher Mihos, Sanjaya Paudel, Mathieu Powalka, Elisa Toloba   +27 more
openaire   +4 more sources

THE STRUCTURE OF NUCLEAR STAR CLUSTERS IN NEARBY LATE-TYPE SPIRAL GALAXIES FROM HUBBLE SPACE TELESCOPE WIDE FIELD CAMERA 3 IMAGING [PDF]

Astronomical Journal, 2015
We obtained Hubble Space Telescope/Wide Field Camera 3 imaging of a sample of ten of the nearest and brightest nuclear clusters (NCs) residing in late-type spiral galaxies, in seven bands that span the near-UV to the near-IR. Structural properties of the
Daniel J. Carson, A. Barth, A. Seth, M. D. Brok, M. Cappellari, J. Greene, L. Ho, Nadine Neumayer University of California Irvine, U. Utah, U. Oxford, P. University, K. I. O. Astronomy, Astrophysics, P. University, M. Astronomie   +14 more
semanticscholar   +1 more source