Results 1 to 10 of about 597,340 (231)

Hunting for Neighboring Open Clusters with Gaia DR3: 101 New Open Clusters within 500 pc [PDF]

The Astrophysical Journal Supplement Series, 2023
We systematically searched for open clusters in the solar neighborhood within 500 pc using the pyUPMASK and HDBSCAN clustering algorithms based on Gaia DR3.
Songmei Qin, Jing Zhong, Tong Tang, Li Chen   +3 more
doaj   +2 more sources

Survival Rates of Planets in Open Clusters: the Pleiades, Hyades, and Praesepe clusters [PDF]

A&A 624, A110 (2019), 2018
In clustered environments, stellar encounters can liberate planets from their host stars via close encounters. Although the detection probability of planets suggests that the planet population in open clusters resembles that in the field, only a few dozen planet-hosting stars have been discovered in open clusters.
Fujii, M. S., Hori, Y.
arxiv   +3 more sources

Star cluster ecology -- IV. Dissection of an open star cluster: photometry [PDF]

Monthly Notices of the Royal Astronomical Society, 2001
reduced abstract, 33 pages (three separate color .jpg figures), submitted to ...
Simon Portegies Zwart, Stephen L. W. McMillan, Piet Hut, Junichiro Makino   +3 more
openalex   +5 more sources

Modes of Multiple Star Formation [PDF]

Astrophys.J.553:744-753,2001, 2001
This paper argues that star forming environments should be classified into finer divisions than the traditional isolated and clustered modes. Using the observed set of galactic open clusters and theoretical considerations regarding cluster formation, we estimate the fraction of star formation that takes place within clusters. We find that less than 10%
Battinelli P., Bonnell I. A., Elmegreen B. G., Fred C. Adams, Gahm G. F., Hester J. J., Pandey A. K., Philip C. Myers, Price N. M., Retterer J. M., Roberts M., Sterzik M. F., Strom K. E., Testi L.   +13 more
arxiv   +5 more sources

Non-uniform extinction in young open star clusters [PDF]

, 2001
The extinction law and the variation of colour excess with position, luminosity as well as spectral class in young open star clusters NGC 663, NGC869, NGC 884, NGC 1502, NGC 1893, NGC 2244, NGC 2264, NGC 6611, Tr 14, Tr 15,Tr 16, Coll 228, Tr 37 and Be ...
R. K. S. Yadav, R. Sagar
openalex   +5 more sources

Variability of Be Stars in Southern Open Clusters [PDF]

Astrophys.J.700:1216-1232,2009, 2009
We recently discovered a large number of highly active Be stars in the open cluster NGC 3766, making it an excellent location to study the formation mechanism of Be star disks. To explore whether similar disk appearances and/or disappearances are common among the Be stars in other open clusters, we present here multiple epochs of H-alpha spectroscopy ...
M. Virginia McSwain, M. Virginia McSwain, Wenjin Huang, Douglas R. Gies   +3 more
arxiv   +5 more sources

Blue Straggler Stars in Galactic Open Clusters and the effect of field star contamination [PDF]

, 2008
We investigate the distribution of Blue Straggler stars in the field of three open star clusters. The main purpose is to highlight the crucial role played by general Galactic disk fore-/back-ground field stars, which are often located in the same region of the Color Magnitude Diagram as Blue Straggler stars.
A. Moitinho, Ahumada, Ann, Bellazzini, Bellazzini, Burton, Carraro, Carraro, De Marchi, Dias, Ferraro, G. Carraro, Gim, Girardi, Guarnieri, Moitinho, Momany, Pandey, Phelps, Piotto, R. A. Vázquez, Russeil, Sandage, Schlegel, Villanova, Vázquez, Xin, Xu   +27 more
arxiv   +8 more sources

Star clusters in the Sh2-132 complex: clues about the connection between embedded and open clusters [PDF]

, 2010
Embedded clusters are formed in molecular clouds where massive stars can produce HII regions. The detailed embedded-open cluster evolutionary connection as well as the origin of associations are yet to be unveiled. There appears to be a high infant mortality rate among embedded clusters and the few survivors evolve to open clusters. We study the colour-
Abt, Bastian, Battinelli, Bessel, Bica, Bonatto, Bonatto, Bonatto, Bonatto, Bonatto, C. Bonatto, Cappa, Carvalho, Converse, De Wit, De Wit, Dutra, E. Bica, Elmegreen, Elson, Fellhauer, Foster, Furlan, Goodwin, Gvaramadze, Hamann, Harten, King, Kronberger, Lada, Luhman, Luhman, Lynds, Marigo, Meyer, Moeckel, Momany, Parker, Pflamm-Altenburg, Platais, Puga, Schlegel, Sharpless, Siess, Smith, T. A. Saurin, Tutukov, Van Der Hucht, Wilson, Yilmaz   +49 more
arxiv   +5 more sources

An analytical description of the disruption of star clusters in tidal fields with an application to Galactic open clusters [PDF]

, 2005
We present a simple analytical description of the disruption of star clusters in a tidal field, which agrees excellently with detailed N-body simulations.
H. J. G. L. M. Lamers, Mark Gieles, N. Bastian, Holger Baumgardt, N. V. Kharchenko, Simon Portegies Zwart   +5 more
openalex   +5 more sources

Heterogeneity of the Population of Open Star Clusters in the Galaxy [PDF]

Astron. Lett., 38, 506 (2012), 2012
Based on published data, we have compiled a catalogue of fundamental astrophysical parameters for 593 open clusters of the Galaxy. In particular, the catalogue provides the Galactic orbital elements for 500 clusters, the masses, central concentrations, and ellipticities for 424 clusters, the metallicities for 264 clusters, and the relative magnesium ...
T. V. Borkova, M. L. Gozha, V. A. Marsakov   +2 more
arxiv   +6 more sources