Results 1 to 10 of about 682,174 (361)
Open star clusters and Galactic structure [PDF]
Proceedings of the International Astronomical Union, 2017 AbstractIn order to understand the Galactic structure, we perform a statistical analysis of the distribution of various cluster parameters based on an almost complete sample of Galactic open clusters yet available. The geometrical and physical characteristics of a large number of open clusters given in the MWSC catalogue are used to study the spatial ...
Y. C. Joshi
semanticscholar +6 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 +2 more
arxiv +7 more sources
Open Star Clusters and Their Asymmetrical Tidal Tails [PDF]
The Astrophysical JournalStars that evaporate from their star cluster by the energy equipartition process end up in either a leading or a trailing tidal tail. In Newtonian gravitation and for open star clusters in the solar vicinity, the tidal threshold, or práh, for escape is ...
Pavel Kroupa +6 more
doaj +4 more sources
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 +3 more
doaj +2 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 +3 more
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 +3 more
arxiv +5 more sources
New atlas of open star clusters
Open Astronomy, 2017 Due to numerous new discoveries of open star clusters in the last two decades, astronomers need an easy-touse resource to get visual information on the relative position of clusters in the sky. Therefore we propose a new atlas of open star clusters.
Seleznev Anton F. +5 more
doaj +3 more sources
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
openalex +9 more sources
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
openalex +4 more sources
Molybdenum in the open cluster stars [PDF]
Journal of Physical Studies, 2020 18 pages, 6 figures, 6 tables; Accepted for publication in Journal of Physical Studies, 2020, v.24 ...
Mishenina +11 more
openaire +3 more sources