Zobrazeno 1 - 10
of 121
pro vyhledávání: '"Arca Sedda, M."'
In this work, we investigate the black hole (BH) population of globular clusters (GCs) in Milky Way- (MW) and Andromeda- (M31) like galaxies. We combine the population synthesis code MASinGa and the MOCCA-Survey Database I to infer the properties of
Externí odkaz:
http://arxiv.org/abs/2209.01564
A comprehensive study of the co-evolution of globular cluster systems (GCS) in galaxies requires the ability to model both the large scale dynamics (0.01 - 10 kpc) regulating their orbital evolution, and the small scale dynamics (sub-pc - AU) regulat
Externí odkaz:
http://arxiv.org/abs/2206.03967
Autor:
Rastello, S., Amaro-Seoane, P., Arca-Sedda, M., Capuzzo-Dolcetta, R., Fragione, G., Melo, I. Tosta e
In this paper we study the evolution of a primordial black hole binary (BHB) in a sample of over 1500 direct-summation $N-$body simulations of small-and intermediate-size isolated star clusters as proxies of galactic open clusters. The BHBs have mass
Externí odkaz:
http://arxiv.org/abs/1811.10628
Autor:
Belczynski, K., Askar, A., Arca-Sedda, M., Chruslinska, M., Donnari, M., Giersz, M., Benacquista, M., Spurzem, R., Jin, D., Wiktorowicz, G., Belloni, D.
The first neutron star-neutron star (NS-NS) merger was discovered on August 17, 2017 through gravitational waves (GW170817) and followed with electromagnetic observations. This merger was detected in an old elliptical galaxy with no recent star forma
Externí odkaz:
http://arxiv.org/abs/1712.00632
Recent observations of the Virgo cluster and the Local Group suggested that some galaxies are flowing out from their parent cluster. This may be the signature that dark energy (DE) acts significantly also on small cosmological scales. By means of dir
Externí odkaz:
http://arxiv.org/abs/1606.05267
We performed a series of direct N-body simulations with the aim to follow the dynamical evolution of a galaxy cluster (GC) ($M_{clus}\simeq 10^{14} M_{\odot}$) in different environment. The results show the formation of heavy sub-structures in the cl
Externí odkaz:
http://arxiv.org/abs/1606.06768
Autor:
Arca-Sedda, M., Capuzzo-Dolcetta, R.
Dynamical friction is the process responsible for matter transport toward the inner regions of galaxies in form of massive objects, like intermediate mass black holes, globular clusters and small satellite galaxies. While very bright galaxies show an
Externí odkaz:
http://arxiv.org/abs/1302.4088
The central regions of galaxies show the presence of massive black holes and/or dense stellar systems. The question about their modes of formation is still under debate. A likely explanation of the formation of the central dense stellar systems in bo
Externí odkaz:
http://arxiv.org/abs/1302.2509
Autor:
Arca-Sedda, M., Capuzzo-Dolcetta, R.
It is well known that a large fraction of galaxies have cuspy luminosity profiles in their central regions, at least within the observational resolution. In such cases, the often used, simplified, local approximation for the dynamical friction brakin
Externí odkaz:
http://arxiv.org/abs/1112.6101
Autor:
Sacchi, A., Esposito, P., de Martino, D., Soria, R., Israel, G. L., Sander, A. A. C., Sidoli, L., Buckley, D. A. H., Monageng, I. M., Tiengo, A., Arca Sedda, M., Pinto, C., Di Stefano, R., Imbrogno, M., Carleo, A., Rivolta, G.
Publikováno v:
Astronomy & Astrophysics / Astronomie et Astrophysique; 1/27/2024, Vol. 682, p1-17, 17p
