Zobrazeno 1 - 10
of 1 217
pro vyhledávání: '"Fellhauer, M. A."'
We investigate the effects of an oscillating gas filament on the dynamics of its embedded stellar clusters. Motivated by recent observational constraints, we model the host gas filament as a cylindrically symmetrical potential, and the star cluster a
Externí odkaz:
http://arxiv.org/abs/2304.14472
It is well known that Globular cluster systems are different among galaxies. Here we test to which degree these differences remain on the scale of galaxy clusters by comparing the globular clusters (GCs) in optical surveys of the Virgo galaxy cluster
Externí odkaz:
http://arxiv.org/abs/2211.02711
Publikováno v:
A&A 672, A131 (2023)
Context: A variety of formation models for dwarf spheroidal (dSph) galaxies have been proposed in the literature, but generally they have not been quantitatively compared with observations. Aims: We search for chemodynamical patterns in our observati
Externí odkaz:
http://arxiv.org/abs/2201.07304
We investigate the dissolution process of young embedded star clusters with different primordial mass segregation levels using fractal distributions by means of N-body simulations. We combine several star clusters in virial and subvirial global state
Externí odkaz:
http://arxiv.org/abs/2109.05944
Autor:
Vergara, M. Z. C., Schleicher, D. R. G., Boekholt, T. C. N., Reinoso, B., Fellhauer, M., Klessen, R. S., Leigh, N. W. C.
Fragmentation often occurs in disk-like structures, both in the early Universe and in the context of present-day star formation. Supermassive black holes (SMBHs) are astrophysical objects whose origin is not well understood; they weigh millions of so
Externí odkaz:
http://arxiv.org/abs/2104.01451
Publikováno v:
A&A 639, A92 (2020)
Runaway stellar collisions in dense star clusters are invoked to explain the presence of very massive stars or blue stragglers in the center of those systems. This process has also been explored for the first star clusters in the Universe and shown t
Externí odkaz:
http://arxiv.org/abs/2005.07807
Autor:
Seguel, P. J. Alister, Schleicher, D. R. G., Boekholt, T. C. N., Fellhauer, M., Klessen, R. S.
Runaway collisions in dense clusters may lead to the formation of supermassive black hole (SMBH) seeds, and this process can be further enhanced by accretion, as recent models of SMBH seed formation in Population III star clusters have shown. This ma
Externí odkaz:
http://arxiv.org/abs/1912.01737
Publikováno v:
A&A 633, A91 (2020)
The aim of this work is to find a progenitor for Canes Venatici I (CVn I), under the assumption that it is a dark matter free object that is undergoing tidal disruption. With a simple point mass integrator, we searched for an orbit for this galaxy us
Externí odkaz:
http://arxiv.org/abs/1911.10185
Publikováno v:
2019BAAA...61..148M
We perform simulations to test the effects of a moving gas filament on a young star cluster (i.e. the "Slingshot" Model). We model Orion Nebula Cluster-like clusters as Plummer spheres and the Integral Shaped Filament gas as a cylindrical potential.
Externí odkaz:
http://arxiv.org/abs/1909.04540
Autor:
Zapata, F. Urrutia, Fellhauer, M., Jara, A. G. Alarcon, Carrillo, D. R. Matus, Aravena, C. A.
In the last decades, extended old stellar clusters have been observed. These extended objects cover a large range in masses, from extended clusters or faint fuzzies to ultra compact dwarf galaxies. It has been demonstrated that these extended objects
Externí odkaz:
http://arxiv.org/abs/1903.02513