Results 31 to 40 of about 240,639 (335)
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 ...
A. Moitinho +27 more
core +5 more sources
Membership Analysis and 3D Kinematics of the Star-forming Complex around Trumpler 37 Using Gaia-DR3
The Astrophysical Journal, 2023 Identifying and characterizing young populations of star-forming regions are crucial to unraveling their properties. In this regard, Gaia-DR3 data and machine-learning tools are very useful for studying large star-forming complexes.
Swagat R. Das +4 more
doaj +1 more source
Neutron Star Binaries in Open Clusters [PDF]
International Astronomical Union Colloquium, 1996 We use N-body simulations of open clusters to examine the evolutionary history of binaries containing neutron stars. The model includes consistent treatment of all the relevant processes (Aarseth 1996): • Synthetic stellar evolution – mass and radius as a function of time (Eggleton et al.
Sverre Aarseth, Rosemary Mardling
openaire +1 more source
On the possible generation of the young massive open clusters Stephenson2 and BDSB122 by Omega Centauri [PDF]
, 2009 A massive objects such as a globular cluster passing through the disk of a galaxy can trigger star formation. We test the hypothesis that the most massive globular cluster in the Galaxy, $\omega$ Centauri, which crossed the disk approximately $24\pm2 ...
Allen +49 more
core +2 more sources
A uvbyCaHβ CCD Analysis of the Open Cluster Standard, M67, and Its Relation to NGC 752
The Astronomical Journal, 2023 Precision CCD uvbyCa H β photometry is presented of the old cluster, M67, covering one square degree with typical internal precision at the 0.005–0.020 mag level to V ∼ 17.
Bruce A. Twarog +2 more
doaj +1 more source
NGC 4337: an over-looked old cluster in the inner disc of the Milky Way [PDF]
, 2014 Galactic open clusters do not survive long in the high density regions of the inner Galactic disc. Inside the solar ring only 11 open clusters are known with ages older than one Gyr.
Carraro, Giovanni +3 more
core +3 more sources
Dynamics of Open Star Clusters [PDF]
Symposium - International Astronomical Union, 1985 The dynamical evolution of open star clusters has been studied successfully by numerical N-body simulations. We compare in detail the theoretically predicted lifetimes with those derived from the observed age distribution of open clusters. Rare but efficient encounters between clusters and giant molecular clouds are probably responsible for the sudden ...
openaire +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. +3 more
core +3 more sources
Non-stationarity of Open Star Clusters [PDF]
, 2021 The monograph poses issues related to the study of the non-stationarity of open star clusters (OSCs), starting with an analysis of the properties of the trajectories of individual stars to the study of collective motion of stars. A discussion of the dynamics of correlations and wave processes in such clusters is presented. The mechanisms of the dynamic
openaire +1 more source
Stars with Abnormal Spectra in Open Clusters [PDF]
Symposium - International Astronomical Union, 1980 From the literature a list of stars with abnormal spectra belonging to open clusters was compiled. This list is included in Lyngå's catalogue of open clusters. With this data it becomes possible to derive a correlation with the age, compiled by W. Buscombe and which appears also in Lyngå's catalogue.
openaire +1 more source