GLOBULAR CLUSTER STREAMS AS GALACTIC HIGH-PRECISION SCALES—THE POSTER CHILD PALOMAR 5 [PDF]
Proceedings of the International Astronomical Union, 2015 Using the example of the tidal stream of the Milky Way globular cluster Palomar 5 (Pal 5), we demonstrate how observational data on tidal streams can be efficiently reduced in dimensionality and modeled in a Bayesian framework.
A. Küpper +6 more
semanticscholar +1 more source
The dragon simulations: globular cluster evolution with a million stars [PDF]
, 2016 Introducing the dragon simulation project, we present direct N-body simulations of four massive globular clusters (GCs) with 106 stars and 5 per cent primordial binaries at a high level of accuracy and realism.
Long Wang +8 more
semanticscholar +1 more source
Dynamical Substructures of Galactic Globular Clusters I. M5 [PDF]
Journal of Astronomy and Space Sciences, 2004 CCD images to study the dynamical substructure of the globular cluster M5. We investigate the radial variation of ellipticities and position angles using the stellar photometry and the IRAF ellipse task.
Jongwhan Rhee, Young-Jong Sohn
doaj +1 more source
APOGEE chemical abundances of globular cluster giants in the inner Galaxy [PDF]
, 2016 We report chemical abundances obtained by Sloan Digital Sky Survey (SDSS)-III/Apache Point Observatory Galactic Evolution Experiment for giant stars in five globular clusters located within 2.2 kpc of the Galactic Centre.
R. Schiavon +29 more
semanticscholar +1 more source
r-process Abundance Patterns in the Globular Cluster M92
The Astrophysical Journal, 2023 Whereas light-element abundance variations are a hallmark of globular clusters, there is little evidence for variations in neutron-capture elements. A significant exception is M15, which shows a star-to-star dispersion in neutron-capture abundances of at
Evan N. Kirby +2 more
doaj +1 more source
CHEMICAL TAGGING IN THE SDSS-III/APOGEE SURVEY: NEW IDENTIFICATIONS OF HALO STARS WITH GLOBULAR CLUSTER ORIGINS [PDF]
, 2016 We present new identifications of five red giant stars in the Galactic halo with chemical abundance patterns that indicate they originally formed in globular clusters.
S. Martell +8 more
semanticscholar +1 more source
Paving the way for the JWST: witnessing globular cluster formation at z > 3 [PDF]
, 2016 We report on five compact, extremely young ( 3, elusive even in the deepest blank fields. We discuss how proto-GCs might contribute to the ionization budget of the Universe and augment Lya visibility during reionization.
E. Vanzella +20 more
semanticscholar +1 more source
New Astronomy, 2000 The dynamics of a close binary system of globular clusters is considered. It is shown that the star transfer process from one of the components to the other should lead to the decrease of dimension of the first cluster with simultaneous increase of the dimension of the second cluster.
openaire +2 more sources
Back to the Future: Estimating Initial Globular Cluster Masses from their Present Day Stellar Mass Functions [PDF]
, 2015 We use N-body simulations to model the 12 Gyr evolution of a suite of star clusters with identical initial stellar mass functions over a range of initial cluster masses, sizes, and orbits.
J. Webb, N. Leigh
semanticscholar +1 more source
Accurate distances to Galactic globular clusters through a combination of Gaia EDR3, HST, and literature data [PDF]
, 2021 We have derived accurate distances to Galactic globular clusters by combining data from the Gaia Early Data Release 3 (EDR3) with distances based on Hubble Space telescope (HST ) data and literature based distances. We determine distances either directly
H. Baumgardt, Eugene Vasiliev
semanticscholar +1 more source