Results 31 to 40 of about 344,290 (331)

Roche volume filling and the dissolution of open star clusters [PDF]

open access: yes, 2015
From direct N-body simulations we find that the dynamical evolution of star clusters is strongly influenced by the Roche volume filling factor. We present a parameter study of the dissolution of open star clusters with different Roche volume filling ...
A. Ernst   +5 more
semanticscholar   +1 more source

Three new Galactic star clusters discovered in the field of the open cluster NGC 5999 withGaia DR2 [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2018
We report the serendipitous discovery of three new open clusters, named UFMG 1, UFMG 2 and UFMG 3 in the field of the intermediate-age cluster NGC 5999, by using Gaia DR2 data.
F. Ferreira   +4 more
semanticscholar   +1 more source

Binary Star Evolution in Different Environments: Filamentary, Fractal, Halo, and Tidal Tail Clusters

open access: yesThe Astronomical Journal, 2023
Using membership of 85 open clusters from previous studies based on Gaia Data Release 3 data, we identify binary candidates in the color–magnitude diagram for systems with mass ratio q > 0.4.
Xiaoying Pang   +9 more
doaj   +1 more source

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]

open access: yes, 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.
A. Chené   +10 more
semanticscholar   +1 more source

The Binary INformation from Open Clusters Using SEDs (BINOCS) Project: Reliable Photometric Mass Determinations of Binary Star Systems in Clusters [PDF]

open access: yes, 2021
We introduce a new binary detection technique, Binary INformation from Open Clusters using SEDs (binocs), which we show is able to determine reliable stellar multiplicity and masses over a much larger mass range than current approaches.
B. Thompson   +3 more
semanticscholar   +1 more source

DYNAMICAL INTERACTIONS MAKE HOT JUPITERS IN OPEN STAR CLUSTERS [PDF]

open access: yes, 2014
Explaining the origin and evolution of exoplanetary hot Jupiters remains a significant challenge. One possible mechanism for the production of hot Jupiters is planet–planet interactions, which produce them from planets born far from their host stars but ...
M. Shara, J. Hurley, R. Mardling
semanticscholar   +1 more source

Evolution and appearance of Be stars in SMC clusters [PDF]

open access: yes, 2009
Star clusters are privileged laboratories for studying the evolution of massive stars (OB stars). One particularly interesting question concerns the phases, during which the classical Be stars occur, which unlike HAe/Be stars, are not pre-main sequence ...
Baade   +14 more
core   +2 more sources

Membership Analysis and 3D Kinematics of the Star-forming Complex around Trumpler 37 Using Gaia-DR3

open access: yesThe 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

On the possible generation of the young massive open clusters Stephenson2 and BDSB122 by Omega Centauri [PDF]

open access: yes, 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

open access: yesThe 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

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