Results 21 to 30 of about 169,580 (246)

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

An HST/WFPC2 Survey of Bright Young Clusters in M31 III. Structural Parameters [PDF]

, 2009
Surface brightness profiles for 23 M31 star clusters were measured using images from the Wide Field Planetary Camera 2 on the Hubble Space Telescope, and fit to two types of models to determine the clusters' structural properties.
Barmby, P., Bellazzini, M., Cohen, J. G., Hodge, P. W., Huchra, J. P., Kissler-Patig, M., Perina, S., Puzia, T. H., Strader, J.   +8 more
core   +3 more sources

On the origin of the red excess in very young super star clusters: the case of SBS 0335-052E [PDF]

, 2010
The spectral energy distribution analysis of very young unresolved star clusters challenges our understanding of the cluster formation process. Studies of resolved massive clusters in the Milky Way and in the nearby Magellanic Clouds show us that the ...
Adamo, Angela, Hayes, Matthew, Ostlin, Goeran, Zackrisson, Erik   +3 more
core   +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.
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Hierarchical structures in the Large and Small Magellanic Clouds [PDF]

, 2009
We investigate the degree of spatial correlation among extended structures in the LMC and SMC. To this purpose we work with sub-samples characterised by different properties such as age and size, taken from the updated catalogue of Bica et al.
Aaronson, Ahumada, Balbinot, Bastian, Bastian, Bastian, Bastian, Bate, Bekki, Bellazzini, Bica, Bica, Bica, Bica, Bica, Bica, Bica, Bonatto, Bonatto, Bruzual, Brück, Brück, C. Bonatto, Carvalho, Charlot, Chiosi, Crowl, Danks, De Grijs, De Grijs, De La Fuente Marcos, Dieball, E. Bica, Efremov, Efremov, Elias, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Elson, Freeman, Friel, Geisler, Gieles, Girardi, Girardi, Glatt, Goodwin, Graff, Grocholski, Harris, Hodge, Hodge, Hodge, Hodge, Hodge, Hodge, Hughes, Hunter, Janes, Karampelas, Kerber, Kerber, Khalisi, King, Kontizas, Kron, Lamers, Leitherer, Lindsay, Livanou, Livanou, Lyngå, Mackey, Mackey, Mackey, Matteucci, Milone, Mould, Mucciarelli, Oey, Olszewski, Parisi, Parmentier, Piatti, Piatti, Piatti, Piatti, Piatti, Piatti, Pietrzynski, Pietrzynski, Pietrzynski, Piskunov, Rafelski, Rochau, Sabbi, Santiago, Schaefer, Schommer, Shapley, Stanimirović, Van Den Bergh, Walsh, Williams   +109 more
core   +3 more sources

The Star Cluster System in the Local Group Starburst Galaxy IC 10

, 2015
We present a survey of star clusters in the halo of IC 10, a starburst galaxy in the Local Group based on Subaru R band images and NOAO Local Group Survey UBVRI images. We find five new star clusters.
Lee, Myung Gyoon, Lim, Sungsoon
core   +1 more source

Age and mass studies for young star clusters in M31 from SEDs-fit

, 2012
In this paper, we present photometry for young star clusters in M31, which are selected from Caldwell et al. These star clusters have been observed as part of the Beijing--Arizona--Taiwan--Connecticut (BATC) Multicolor Sky Survey from 1995 February to ...
Barmby, Barmby, Barmby, Barmby, Barmby, Beasley, Caldwell, Caldwell, Carpenter, Cohen, Davidge, de Grijs, de Jong, Fall, Fall, Fan, Fan, Fusi Pecci, Gieles, Gordon, Hu Zou, Jester, Jiang, Johnson, Jun Ma, Kang, Larsen, Ma, Ma, Ma, Ma, Ma, Massey, McLaughlin, Nantais, Narbutis, Perrett, Rey, San Roman, Song Wang, Sérsic, Tianmeng Zhang, Vansevičius, Wang, Williams, Xu Zhou, Zhenyu Wu, Zhou Fan   +47 more
core   +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

The structure of young star clusters [PDF]

Monthly Notices of the Royal Astronomical Society, 1999
We analyse and compare the clustering of young stars in Chamaeleon I and Taurus. We compute the mean surface-density of companion stars \bar{N} as a function of angular displacement from each star. We then fit \bar{N}( ) with two simultaneous power laws.
Gladwin, P. P., Kitsionas, S., Boffin, H. M. J., Whitworth, A. P.   +3 more
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Star Cluster Evolution: From Young Massive Star Clusters to Old Globulars [PDF]

, 2009
Young, massive star clusters are the most notable and significant end products of violent star-forming episodes triggered by galaxy collisions, mergers, and close encounters. The question remains, however, whether or not at least a fraction of the compact YMCs seen in abundance in extragalactic starbursts, are potentially the progenitors of globular ...
openaire   +2 more sources