147 citations · 634 across the 13 of their papers we have counts for
9 papers · 1 filter
Very massive stars in not so massive clusters
Seungkyung Oh, Pavel Kroupa
Very young star clusters in the Milky Way exhibit a well-defined relation between their maximum stellar mass, m_max, and their mass in stars, M_ecl. A recent study shows that the y…
Dynamical ejections of massive stars from young star clusters under diverse initial conditions
Seungkyung Oh, Pavel Kroupa
We study the effects of initial conditions of star clusters and their massive star population on dynamical ejections of massive stars from star clusters up to an age of 3 Myr. We u…
Dependency of dynamical ejections of O stars on the masses of very young star clusters
Seungkyung Oh, Pavel Kroupa, Jan Pflamm-Altenburg
Massive stars can be efficiently ejected from their birth clusters through encounters with other massive stars. We study how the dynamical ejection fraction of O star systems varie…
Revisiting the universality of (multiple) star formation in present-day star formation regions
Michael Marks, Nathan Leigh, Mirek Giersz +3
Populations of multiple stars inside clustered regions are known to change through dynamical interactions. The efficiency of binary disruption is thought to be determined by stella…
R144 : a very massive binary likely ejected from R136 through a binary-binary encounter
Seungkyung Oh, Pavel Kroupa, Sambaran Banerjee
R144 is a recently confirmed very massive, spectroscopic binary which appears isolated from the core of the massive young star cluster R136. The dynamical ejection hypothesis as an…
The influence of stellar-dynamical ejections and collisions on the relation between the maximum-star and star-cluster-mass
Seungkyung Oh, Pavel Kroupa
We perform the largest currently available set of direct N-body calculations of young star cluster models to study the dynamical influence, especially through the ejections of the…
Runaway massive stars from R136: VFTS 682 is very likely a "slow runaway"
Sambaran Banerjee, Pavel Kroupa, Seungkyung Oh
We conduct a theoretical study on the ejection of runaway massive stars from R136 --- the central massive, star-burst cluster in the 30 Doradus complex of the Large Magellanic Clou…
An analytical description of the evolution of binary orbital-parameter distributions in N-body computations of star clusters
Michael Marks, Pavel Kroupa, Seungkyung Oh
A new method is presented to describe the evolution of the orbital-parameter distributions for an initially universal binary population in star clusters by means of the currently l…
Mass Distribution in the Central Few Parsecs of Our Galaxy
Seungkyung Oh, Sungsoo S. Kim, Donald F. Figer
We estimate the enclosed mass profile in the central 10 pc of the Milky Way by analyzing the infrared photometry and the velocity observations of dynamically relaxed stellar popula…