Planetary systems in star clusters [PDF]
Proceedings of the International Astronomical Union, 2014 AbstractIn the solar neighborhood, where the typical relaxation timescale is larger than the cosmic age, at least 10% to 15% of Sun-like stars have planetary systems with Jupiter-mass planets. In contrast, dense star clusters, characterized by frequent close encounters, have been found to host very few planets.
Kouwenhoven, M.B.N. +3 more
openaire +6 more sources
THE TWO MOLECULAR CLOUDS IN RCW 38: EVIDENCE FOR THE FORMATION OF THE YOUNGEST SUPER STAR CLUSTER IN THE MILKY WAY TRIGGERED BY CLOUD–CLOUD COLLISION [PDF]
, 2015 We present distributions of two molecular clouds having velocities of 2 and 14 km s−1 toward RCW 38, the youngest super star cluster in the Milky Way, in the 12CO J = 1–0 and 3–2 and 13CO J = 1–0 transitions.
Y. Fukui +15 more
semanticscholar +1 more source
SIGNATURES OF STAR CLUSTER FORMATION BY COLD COLLAPSE [PDF]
Astrophysical Journal, 2015 Subvirial gravitational collapse is one mechanism by which star clusters may form. Here we investigate whether this mechanism can be inferred from observations of young clusters.
A. Kuznetsova +2 more
semanticscholar +1 more source
Globular cluster star classification: Application to M13 [PDF]
Serbian Astronomical Journal, 2013 Starting from recent determination of Fe, O, Na abundances on a restricted sample (N = 67) of halo and thick disk stars, a natural and well motivated selection criterion is defined for the classification globular cluster stars. An application is
Caimmi R.
doaj +1 more source
A catalog of newly identified star clusters in GAIA DR2 [PDF]
, 2019 We present the Star cluster Hunting Pipeline (SHiP) which can identify star clusters in GAIA DR2 data, and establish a star cluster catalog for the Galactic disk. A Friend of Friend based cluster finder method is used to identify star clusters using 5-dimensional stellar parameters, $l, b, \varpi, \mu_\alpha\cos\delta$, and $\mu_\delta$.
arxiv +1 more source
MOCCA code for star cluster simulations – IV. A new scenario for intermediate mass black hole formation in globular clusters [PDF]
, 2015 We discuss a new scenario for the formation of intermediate mass black holes (IMBHs) in dense star clusters. In this scenario, IMBHs are formed as a result of dynamical interactions of hard binaries containing a stellar-mass black hole (BH), with other ...
M. Giersz +6 more
semanticscholar +1 more source
Modeling Dense Star Clusters in the Milky Way and Beyond with the CMC Cluster Catalog [PDF]
Astrophysical Journal Supplement Series, 2019 We present a set of 148 independent N-body simulations of globular clusters (GCs) computed using the code CMC (Cluster Monte Carlo). At an age of ∼10–13 Gyr, the resulting models cover nearly the full range of cluster properties exhibited by the Milky ...
K. Kremer +8 more
semanticscholar +1 more source
The Chinese ground-based instrumentation in support of the combined Cluster/Double Star satellite measurements [PDF]
Annales Geophysicae, 2005 Ground-based observations can be used to provide substantial support for Cluster/Double Star measurements and greatly enhance the mission's scientific return. There are six Chinese ground stations involved in coordinated cluster/Double Star and ground-
R.-Y. Liu +12 more
doaj +1 more source
HENIZE 2–10: THE ONGOING FORMATION OF A NUCLEAR STAR CLUSTER AROUND A MASSIVE BLACK HOLE [PDF]
, 2015 The central region of the galaxy Henize 2–10 hosts a black hole (BH) candidate with a mass Log M BH / M ⊙ = 6.3 ± 1.1 ?> . While this putative BH does not appear to coincide with any central stellar overdensity, it is surrounded by 11 young massive ...
M. Arca-Sedda +3 more
semanticscholar +1 more source
Does God play dice with star clusters?
The Open Journal of Astrophysics, 2023 When a detailed model of a stellar population is unavailable, it is most common to assume that stellar masses are independently and identically distributed according to some distribution: the universal initial mass function (IMF). However, stellar masses
Michael Y. Grudic +4 more
doaj +1 more source