Massive open star clusters using the VVV survey IV. WR 62-2, a new very massive star in the core of the VVV CL041 cluster [PDF]
, 2015 Context The ESO Public Survey VISTA Variables in the V\'ia L\'actea (VVV) provides deep multi-epoch infrared observations for an unprecedented 562 sq. degrees of the Galactic bulge and adjacent regions of the disk.
André-Nicolas Chené +10 more
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Two populations of open star clusters in the Galaxy [PDF]
Astronomy Letters, 2012 Based on our compiled catalogue of fundamental astrophysical parameters for 593 open clusters, we analyze the relations between the chemical composition, spatial positions, Galactic orbital elements, age, and other physical parameters of open star ...
M. Gozha, V. V. Koval’, V. Marsakov
semanticscholar +5 more sources
Massive open star clusters using the VVV survey [PDF]
, 2012 AA: U. de ConcepciA3n, U. de ValparaA-so; AB: U. de ValparaA-so, The Milky Way Millennium Nucleus; AC: U. de ValparaA-so, U. of Hertfordshire; AD: U. Federal do Rio Grande do Sul; AE: Saint Mary's University; AF: U. de ConcepciA3n; AG: U. de ValparaA-so,
André-Nicolas Chené +17 more
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Double or binary: on the multiplicity of open star clusters [PDF]
, 2009 Context. Observations indicate that the fraction of potential binary star clusters in the Magellanic Clouds is about 10%. In contrast, it is widely accepted that the binary cluster frequency in the Galaxy disk is much lower. Aims. Here we investigate the
R. de la Fuente Marcos +1 more
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Variable stars in young open star cluster NGC 7380 [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 14pages, 16 figures, accepted for publication in MNRAS.
Sneh Lata +5 more
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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.
Sneh Lata, A. K. Pandey
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Compact Binary Formation in Open Star Clusters II: Difficulty of Gaia NS formation in low-mass star clusters [PDF]
The Open Journal of AstrophysicsGaia mission offers opportunities to search for compact binaries not involved in binary interactions (hereafter inert compact binaries), and results in the discoveries of binaries containing one black hole (BH) or one neutron star (NS), called "Gaia BHs''
Ataru Tanikawa +2 more
doaj +2 more sources
Preliminary results on the distances, dimensions and space distribution of open star clusters
, 1930 Robert J. Trumpler
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Compact Binary Formation in Open Star Clusters I: High Formation Efficiency of Gaia BHs and Their Multiplicities [PDF]
Monthly notices of the Royal Astronomical Society, 2023 Gaia BHs, black hole (BH) binaries discovered from database of an astrometric telescope Gaia, pose a question to the standard binary evolution model.
A. Tanikawa +4 more
semanticscholar +1 more source
Asymmetrical tidal tails of open star clusters: stars crossing their cluster's prah challenge Newtonian gravitation [PDF]
, 2022 After their birth a significant fraction of all stars pass through the tidal threshold (práh) of their cluster of origin into the classical tidal tails. The asymmetry between the number of stars in the leading and trailing tails tests gravitational theory.
P. Kroupa +16 more
semanticscholar +1 more source