Results 51 to 60 of about 106,016 (255)

The spatial relation between young star clusters and molecular clouds in M51 with LEGUS [PDF]

Monthly notices of the Royal Astronomical Society, 2018
We present a study correlating the spatial locations of young star clusters with those of molecular clouds in NGC 5194, in order to investigate the time-scale over which clusters separate from their birth clouds.
K. Grasha, K. Grasha, D. Calzetti, A. Adamo, R. Kennicutt, B. Elmegreen, M. Messa, D. Dale, K. Fedorenko, S. Mahadevan, S. Mahadevan, E. Grebel, M. Fumagalli, Hwihyun Kim, C. Dobbs, D. Gouliermis, D. Gouliermis, G. Ashworth, J. Gallagher, Linda J. Smith, M. Tosi, B. Whitmore, E. Schinnerer, D. Colombo, A. Hughes, A. Leroy, S. Meidt   +26 more
semanticscholar   +1 more source

Young and intermediate-age massive star clusters [PDF]

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2010
An overview of our current understanding of the formation and evolution of star clusters is given, with the main emphasis on high-mass clusters. Clusters form deeply embedded within dense clouds of molecular gas. Left-over gas is cleared within a few million years and, depending on the efficiency of star formation, the clusters may disperse almost ...
openaire   +4 more sources

Constraints on Upper Cutoffs in the Mass Functions of Young Star Clusters [PDF]

Astrophysical Journal, 2018
We test claims that the power-law mass functions of young star clusters (ages ≲ few × 108 yr) have physical upper cutoffs at . Specifically, we perform maximum likelihood fits of the Schechter function, , to the observed cluster masses in eight well ...
A. Mok, R. Chandar, S. M. Fall
semanticscholar   +1 more source

Variable stars in young open star clusters

Bulletin de la Société Royale des Sciences de Liège, 2018
We have carried out time series photometry of the some young open clusters NGC 1893, Be 59, NGC 7380, Stock 8 and NGC 281 to search for pre-main-sequence variable stars. We have detected several pre-main-sequence variables associated to the young open clusters with periods ranging from ~0.1 to ~50 days.
Pandey, Anil Kumar, Lata, Sneh
openaire   +2 more sources

The formation of solar-system analogs in young star clusters [PDF]

Astronomy & Astrophysics, 2018
The solar system was once rich in the short-lived radionuclide (SLR) 26Al but poor in 60Fe. Several models have been proposed to explain these anomalous abundances in SLRs, but none has been set within a self-consistent framework of the evolution of the ...
S. P. Zwart
semanticscholar   +1 more source

Formation of Young Star Clusters [PDF]

Highlights of Astronomy, 2005
AbstractTurbulence, self-gravity, and cooling convert most of the interstellar medium into cloudy structures that form stars. Turbulence compresses the gas into clouds directly and it moves pre-existing clouds around passively when there are multiple phases of temperature.
openaire   +2 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

Hierarchical Star Formation in Turbulent Media: Evidence from Young Star Clusters [PDF]

, 2017
We present an analysis of the positions and ages of young star clusters in eight local galaxies to investigate the connection between the age difference and separation of cluster pairs.
K. Grasha, B. Elmegreen, D. Calzetti, A. Adamo, A. Aloisi, S. Bright, D. Cook, Daniel A. Dale, M. Fumagalli, J. Gallagher, D. Gouliermis, D. Gouliermis, E. Grebel, L. Kahre, Hwihyun Kim, M. Krumholz, J. Lee, J. Lee, M. Messa, J. Ryon, L. Úbeda   +20 more
semanticscholar   +1 more source

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

The 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.
Qiana Hunt, Rupali Chandar, Elena Gallo, Matthew Floyd, Thomas J. Maccarone, David A. Thilker   +5 more
doaj   +1 more source

Be stars in young clusters

The Astrophysical Journal, 1994
Photometric Ha and HP line indices for 71 B stars in seven galactic clusters are presented. Some stars in three of the clusters were observed at two epochs. Using these data nine Be stars were identified. Three of them were previously detected as emission-line stars, while six do not appear to have been previously recognized as such.
Goderya, Shaukat N., Schmidt, Edward G.
openaire   +1 more source