Zobrazeno 1 - 10
of 526
pro vyhledávání: '"Noam, I."'
Autor:
Valade, Aurelien, Libeskind, Noam I., Pomarede, Daniel, Tully, R. Brent, Hoffmann, Yehuda, Pfeifer, Simon, Kourkchi, Ehsan
Structure in the Universe is believed to have evolved out of quantum fluctuations seeded by inflation in the early Universe. These fluctuations lead to density perturbations that grow via gravitational instability into large cosmological structures.
Externí odkaz:
http://arxiv.org/abs/2409.17261
Autor:
Raj, Maria Angela, Awad, Petra, Peletier, Reynier F., Smith, Rory, Kuchner, Ulrike, van de Weygaert, Rien, Libeskind, Noam I., Canducci, Marco, Tino, Peter, Bunte, Kerstin
Publikováno v:
A&A 690, A92 (2024)
Our objectives are to map the filamentary network around the Fornax-Eridanus Complex and probe the influence of the local environment on galaxy morphology. We employ the novel machine-learning tool, 1-DREAM (1-Dimensional, Recovery, Extraction, and A
Externí odkaz:
http://arxiv.org/abs/2407.03225
We present a new method - called HINORA (HIgh-NOise RANdom SAmple Consensus) - for the identification of regular structures in 3D point distributions. Motivated by the possible existence of the so called Council of Giants, i.e. a ring of twelve massi
Externí odkaz:
http://arxiv.org/abs/2403.06187
Autor:
Wang, Wei, Wang, Peng, Guo, Hong, Kang, Xi, Libeskind, Noam I., Galarraga-Espinosa, Daniela, Springel, Volker, Kannan, Rahul, Hernquist, Lars, Pakmor, Rudiger, Yu, Haoran, Bose, Sownak, Guo, Quan, Yu, Luo, Hernandez-Aguayo, Cesar
For decades, the boundary of cosmic filaments have been a subject of debate. In this work, we determine the physically-motivated radii of filaments by constructing stacked galaxy number density profiles around the filament spines. We find that the sl
Externí odkaz:
http://arxiv.org/abs/2402.11678
Autor:
Müller, Oliver, Heesters, Nick, Pawlowski, Marcel S., Kanehisa, Kosuke Jamie, Lelli, Federico, Libeskind, Noam I.
The spatial distribution of dwarf galaxies around their host galaxies is a critical test for the standard model of cosmology because it probes the dynamics of dark matter halos and is independent of the internal baryonic processes of galaxies. Co-mov
Externí odkaz:
http://arxiv.org/abs/2401.16002
Autor:
Hoffman, Yehuda, Valade, Aurélien, Libeskind, Noam I., Sorce, Jenny G., Tully, R. Brent, Pfeifer, Simon, Gottlöber, Stefan, Pomaréde, Daniel
The reconstruction of the large scale velocity field from the grouped Cosmicflows-4 (CF4) database is presented. The lognormal bias of the inferred distances and velocities data is corrected by the Bias Gaussianization correction (BGc) scheme, and th
Externí odkaz:
http://arxiv.org/abs/2311.01340
Autor:
Yaryura, C. Yamila, Abadi, Mario G., Gottlöber, Stefan, Libeskind, Noam I., Cora, Sofía A., Ruiz, Andrés N., Vega-Martínez, Cristian A., Yepes, Gustavo
We study the properties of associations of dwarf galaxies and their dependence on the environment. Associations of dwarf galaxies are extended systems composed exclusively of dwarf galaxies, considering as dwarf galaxies those galaxies less massive t
Externí odkaz:
http://arxiv.org/abs/2307.14420
Autor:
Pfeifer, Simon, Valade, Aurélien, Gottlöber, Stefan, Hoffman, Yehuda, Libeskind, Noam I., Hellwing, Wojciech A.
The aim of cosmological simulations is to reproduce the properties of the observed Universe, serving as tools to test structure and galaxy formation models. Constrained simulations of our local cosmological region up to a few hundred Mpc/h , the loca
Externí odkaz:
http://arxiv.org/abs/2305.05694
We study the Satellite Plane Problem of the Milky Way\ (MW) by using the recently published simulation data of TNG50-1. Here, we only consider the satellite plane consisting of the brightest 14 MW satellites \ (11 classical satellites plus Canes Vena
Externí odkaz:
http://arxiv.org/abs/2303.00441
Autor:
Newton, Oliver, Di Cintio, Arianna, Cardona-Barrero, Salvador, Libeskind, Noam I., Hoffman, Yehuda, Knebe, Alexander, Sorce, Jenny, Steinmetz, Matthias, Tempel, Elmo
Ultra-diffuse galaxies (UDGs) are attractive candidates to probe cosmological models and test theories of galaxy formation at low masses; however, they are difficult to detect because of their low surface brightness. In the Local Group a handful of U
Externí odkaz:
http://arxiv.org/abs/2212.05066