Zobrazeno 1 - 10
of 1 256
pro vyhledávání: '"P. Portegies"'
Autor:
Cournoyer-Cloutier, Claude, Sills, Alison, Harris, William E., Polak, Brooke, Rieder, Steven, Andersson, Eric P., Appel, Sabrina M., Mac Low, Mordecai-Mark, McMillan, Stephen, Zwart, Simon Portegies
We study the evolution of populations of binary stars within massive cluster-forming regions. We simulate the formation of young massive star clusters within giant molecular clouds with masses ranging from 2 x 10$^{4}$ to 3.2 x 10$^{5}$ M$_{\odot}$.
Externí odkaz:
http://arxiv.org/abs/2410.07433
Autor:
Stoop, Mitchel, de Koter, Alex, Kaper, Lex, Brands, Sarah, Zwart, Simon Portegies, Sana, Hugues, Stoppa, Fiorenzo, Gieles, Mark, Mahy, Laurent, Shenar, Tomer, Guo, Difeng, Nelemans, Gijs, Rieder, Steven
Massive stars are predominantly born in stellar associations or clusters. Their radiation fields, stellar winds, and supernovae strongly impact their local environment. In the first few million years of a cluster's life, massive stars are dynamically
Externí odkaz:
http://arxiv.org/abs/2410.06255
Publikováno v:
A&A 691, A155 (2024)
Protoplanetary disks surrounding young stars are the birth places of planets. Among them, transition disks with inner dust cavities of tens of au are sometimes suggested to host massive companions. Yet, such companions are often not detected. Some tr
Externí odkaz:
http://arxiv.org/abs/2410.02856
Autor:
Zwart, Simon F. Portegies
The Milky way Galaxy is brimming with free-floating objects, including stars, planets and planetesimals. For the purpose of this chapter, we define a free-floating object as a solid body that is not orbited by a considerably more massive body. A plan
Externí odkaz:
http://arxiv.org/abs/2409.19072
Autor:
Cournoyer-Cloutier, Claude, Karam, Jeremy, Sills, Alison, Zwart, Simon Portegies, Wilhelm, Maite
We simulate mergers between star clusters embedded within their natal giant molecular cloud. We extract initial conditions from cloud-scale simulations of cluster formation and introduce different prescriptions for primordial binaries. We find that s
Externí odkaz:
http://arxiv.org/abs/2409.13564
We use the stellar evolution code BPASS and the gravitational wave simulation code LEGWORK to simulate populations of compact binaries that may be detected by the in-development space-based gravitational wave (GW) detector LISA. Specifically, we simu
Externí odkaz:
http://arxiv.org/abs/2409.09159
Publikováno v:
LIPIcs, Volume 303, TYPES 2023
Using the language of homotopy type theory (HoTT), we 1) prove a synthetic version of the classification theorem for covering spaces, and 2) explore the existence of canonical change-of-basepoint isomorphisms between homotopy groups. There is some fr
Externí odkaz:
http://arxiv.org/abs/2409.15351
Unlike the Solar System planets, thousands of smaller bodies beyond Neptune orbit the Sun on eccentric ($e >$ 0.1) and ($i>$ 3$^\circ$) orbits. While migration of the giant planets during the early stages of Solar System evolution can induce substant
Externí odkaz:
http://arxiv.org/abs/2409.03342
We investigate the ability of Diffusion Variational Autoencoder ($\Delta$VAE) with unit sphere $\mathcal{S}^2$ as latent space to capture topological and geometrical structure and disentangle latent factors in datasets. For this, we introduce a new d
Externí odkaz:
http://arxiv.org/abs/2409.01303
Autor:
Polak, Brooke, Mac Low, Mordecai-Mark, Klessen, Ralf S., Zwart, Simon Portegies, Andersson, Eric P., Appel, Sabrina M., Cloutier, Claude Cournoyer, Glover, Simon C. O., McMillan, Stephen L. W.
Mass segregation is seen in many star clusters, but whether massive stars form in the center of a cluster or migrate there dynamically is still debated. N-body simulations have shown that early dynamical mass segregation is possible when sub-clusters
Externí odkaz:
http://arxiv.org/abs/2408.14592