Results 31 to 40 of about 438,137 (232)

STROMGREN PHOTOMETRY AND SEARCH FOR SHORT PERIOD VARIABLES IN THE OPEN CLUSTERS NGC 6910 AND NGC 6913

Odessa Astronomical Publications, 2017
Analysis of the absolute uvby photometry of the Open Clusters NGC 6910 and NGC 6913 show well-defined peaks that clearly define the accumulation of stars. Differential photometry of five stars in the direction of each cluster determines that at least two
J. H. Pena, R. Peniche, A. Garcia Cole, J. C. Plascencia, L. Parrao, R. Pena   +5 more
doaj   +1 more source

Star cluster formation and star formation: the role of environment and star-formation efficiencies [PDF]

, 2008
“The original publication is available at www.springerlink.com”. Copyright Springer. DOI: 10.1007/s10509-009-0088-5By analyzing global starburst properties in various kinds of starburst and post-starburst galaxies and relating them to the properties of ...
A. Pasquali, A. Schulz, B.C. Whitmore, B.C. Whitmore, B.C. Whitmore, B.G. Elmegreen, B.W. Miller, C. Maraston, C.D. Wilson, C.D. Wilson, C.J. Jog, C.J. Jog, D. Calzetti, E. Hummel, F. Schweizer, F. Schweizer, F. Schweizer, F. Schweizer, G. Parmentier, G. Parmentier, G. Trancho, G. Worthey, G.R. Meurer, H. Krueger, J. Gorgas, J. Schulz, J.H. Brown, K.A. Knierman, M. Haas, M.D. Mora, O.M. Kurth, P. Anders, P. Anders, P. Anders, P. Anders, P. Goudfrooij, P. Goudfrooij, P. Goudfrooij, P. Goudfrooij, P.M. Solomon, R. Grijs de, R. Grijs de, S. Bergh van der, S.C. Gallagher, S.E. Zepf, S.G. Boutloukos, S.S. Larsen, S.S. Larsen, T. Lilly, T. Lilly, U. Fritze-v. Alvensleben, U. Fritze-v. Alvensleben, U. Fritze-v. Alvensleben, U. Fritze-v. Alvensleben, Uta Fritze, Y. Gao, Y. Gao, Y. Li, Y. Shioya   +58 more
core   +2 more sources

Early Results from GLASS-JWST. XX. Unveiling a Population of “Red Excess” Galaxies in Abell2744 and in the Coeval Field

The Astrophysical Journal Letters, 2023
We combine JWST/NIRCam imaging and MUSE data to characterize the properties of galaxies in different environmental conditions in the cluster Abell2744 ( z = 0.3064) and in its immediate surroundings. We investigate how galaxy colors, morphology, and star-
Benedetta Vulcani, Tommaso Treu, Antonello Calabrò, Jacopo Fritz, Bianca M. Poggianti, Pietro Bergamini, Andrea Bonchi, Kristan Boyett, Gabriel B. Caminha, Marco Castellano, Alan Dressler, Adriano Fontana, Karl Glazebrook, Claudio Grillo, Matthew A. Malkan, Sara Mascia, Amata Mercurio, Emiliano Merlin, Benjamin Metha, Takahiro Morishita, Themiya Nanayakkara, Diego Paris, Guido Roberts-Borsani, Piero Rosati, Namrata Roy, Paola Santini, Michele Trenti, Eros Vanzella, Xin Wang   +28 more
doaj   +1 more source

Star Cluster Survival in Star Cluster Complexes under Extreme Residual Gas Expulsion

, 2005
After the stars of a new, embedded star cluster have formed they blow the remaining gas out of the cluster. Especially winds of massive stars and definitely the on-set of the first supernovae can remove the residual gas from a cluster.
Baumgardt H., Goodwin S., M. Fellhauer, P. Kroupa   +3 more
core   +2 more sources

Survey for Distant Stellar Aggregates in the Galactic Disk: Detecting 2000 Star Clusters and Candidates, along with the Dwarf Galaxy IC 10

The Astrophysical Journal Supplement Series, 2023
Despite having data for over 10 ^9 stars from Gaia, less than 10 ^4 star clusters and candidates have been discovered. In particular, distant star clusters are rarely identified, due to the challenges posed by heavy extinction and great distance. However,
Zhihong He, Yangping Luo, Kun Wang, Anbing Ren, Liming Peng, Qian Cui, Xiaochen Liu, Qingquan Jiang   +7 more
doaj   +1 more source

How star clusters could survive low star formation efficiencies

, 2004
After the stars of a new, embedded star cluster have formed they blow the remaining gas out of the cluster. Especially winds of high mass stars and definitely the on-set of the first super novae can remove the residual gas from a cluster. This leads to a
Fellhauer, M., Kroupa, P.
core   +1 more source

Star Formation History of a Young Super-Star Cluster in NGC 4038/39: Direct Detection of Low Mass Pre-Main Sequence Stars [PDF]

, 2010
We present an analysis of the near-infrared spectrum of a young massive star cluster in the overlap region of the interacting galaxies NGC 4038/39 using population synthesis models.
Blum, Brandl, Christopher, Covey, Doppmann, Gilbert, Gorlova, Grebel, Indebetouw, Julia Greissl, Larsen, Leitherer, Leitherer, Levesque, Massey, McCrady, Melo, Mengel, Meyer, Meyer, Meyer, Michael R. Meyer, Micol H. Christopher, Mirabel, Neff, Nick Z. Scoville, Siess, Snijders, Steidel, Tremonti, Vazquez, Wallace, Wang, Whitmore, Whitmore   +34 more
core   +2 more sources

The role of the central stellar cluster in active galactic nuclei. I. Semi-analytical model [PDF]

, 2002
The subject of the paper is the role of the massive stellar cluster in the activity phenomenon and in the structure of active galactic nuclei. We introduce a simple model of stellar dynamics in the internal part of the cluster, which allows us to include
Czerny, B., Vilkoviskij, E. Y.
core   +2 more sources

Cluster and Double Star observations of dipolarization [PDF]

Annales Geophysicae, 2005
We studied two types of dipolarization events with different IMF conditions when Cluster and Double Star (TC-1) were located in the same local time sector: 7 August 2004, 18:00-24:00 UT, during a disturbed southward/northward IMF interval, and 14
R. Nakamura, W. Baumjohann, T. L. Zhang, C. M. Carr, A. Balogh, K.-H. Fornacon, E. Georgescu, H. Rème, I. Dandouras, T. Takada, M. Volwerk, M. Volwerk, Y. Asano, A. Runov, H. Eichelberger, B. Klecker, C. Mouikis, L. M. Kistler, O. Amm   +18 more
doaj   +1 more source

Probing embedded star clusters in the HII complex NGC 6357 with VVV [PDF]

, 2014
NGC 6357 is an active star-forming region located in the Sagittarius arm displaying several star clusters, which makes it a very interesting target to investigate star formation and early cluster evolution.
Bica, E., Bonatto, C., Lima, E. F., Saito, R. K.   +3 more
core   +3 more sources