Zobrazeno 1 - 10
of 283
pro vyhledávání: '"Font, A. S."'
We present several machine learning (ML) models developed to efficiently separate stars formed in-situ in Milky Way-type galaxies from those that were formed externally and later accreted. These models, which include examples from artificial neural n
Externí odkaz:
http://arxiv.org/abs/2405.00102
Autor:
Brown, Shaun T., Fattahi, Azadeh, McCarthy, Ian G., Font, Andreea S., Oman, Kyle A., Riley, Alexander H.
Publikováno v:
MNRAS, 532, 1223-1240 (2024)
We present the new ARTEMIS Emulator suite of high resolution (baryon mass of $2.23 \times 10^{4}$ $h^{-1}$M$_{\odot}$) zoom-in simulations of Milky Way mass systems. Here, three haloes from the original ARTEMIS sample have been rerun multiple times,
Externí odkaz:
http://arxiv.org/abs/2403.11692
From the chemo-dynamical properties of tidal debris in the Milky Way, it has been inferred that the dwarf satellites that have been disrupted had different chemical abundances from their present-day counterparts of similar mass that survive today, sp
Externí odkaz:
http://arxiv.org/abs/2401.04182
We investigate the formation (spin-up) of galactic discs in the ARTEMIS simulations of Milky Way-mass galaxies. In almost all galaxies discs spin up at higher [Fe/H] than the Milky Way (MW). Those that contain an analogue of the Gaia Sausage-Enceladu
Externí odkaz:
http://arxiv.org/abs/2309.08658
Autor:
McCarthy, Ian G., Salcido, Jaime, Schaye, Joop, Kwan, Juliana, Elbers, Willem, Kugel, Roi, Schaller, Matthieu, Helly, John C., Braspenning, Joey, Frenk, Carlos S., van Daalen, Marcel P., Vandenbroucke, Bert, Conley, Jonah T., Font, Andreea S., Upadhye, Amol
A number of recent studies have found evidence for a tension between observations of large-scale structure (LSS) and the predictions of the standard model of cosmology with the cosmological parameters fit to the cosmic microwave background (CMB). The
Externí odkaz:
http://arxiv.org/abs/2309.07959
Upcoming large-scale structure surveys will measure the matter power spectrum to approximately percent level accuracy with the aim of searching for evidence for new physics beyond the standard model of cosmology. In order to avoid biasing our conclus
Externí odkaz:
http://arxiv.org/abs/2305.09710
We report a correlation between the presence of a Gaia-Sausage-Enceladus (GSE) analogue and dark matter halo spin in the ARTEMIS simulations of Milky Way-like galaxies. The haloes which contain a large population of accreted stars on highly radial or
Externí odkaz:
http://arxiv.org/abs/2211.01378
Autor:
Kukstas, Egidijus, Balogh, Michael L., McCarthy, Ian G., Bahe, Yannick M., De Lucia, Gabriella, Jablonka, Pascale, Vulcani, Benedetta, Baxter, Devontae C., Biviano, Andrea, Cerulo, Pierluigi, Chan, Jeffrey C., Cooper, M. C., Demarco, Ricardo, Finoguenov, Alexis, Font, Andreea S., Lidman, Chris, Marchioni, Justin, McGee, Sean, Muzzin, Adam, Nantais, Julie, Old, Lyndsay, Pintos-Castro, Irene, Poggianti, Bianca, Reeves, Andrew M. M., Rudnick, Gregory, Sarron, Florian, van der Burg, Remco, Webb, Kristi, Wilson, Gillian, Yee, Howard K. C., Zaritsky, Dennis
Recent observations have shown that the environmental quenching of galaxies at z ~ 1 is qualitatively different to that in the local Universe. However, the physical origin of these differences has not yet been elucidated. In addition, while low-redsh
Externí odkaz:
http://arxiv.org/abs/2210.10803
Autor:
Camps, Peter, Kapoor, Anand Utsav, Trčka, Ana, Font, Andreea S., McCarthy, Ian G., Trayford, James, Baes, Maarten
We present redshift-zero synthetic dust-aware observations for the 45 Milky Way-mass simulated galaxies of the ARTEMIS project, calculated with the SKIRT radiative transfer code. The post-processing procedure includes components for star-forming regi
Externí odkaz:
http://arxiv.org/abs/2203.06078
It is well established from cosmological simulations that dark matter haloes are not precisely self-similar and an additional parameter, beyond their concentration, is required to accurately describe their spherically-averaged mass density profiles.
Externí odkaz:
http://arxiv.org/abs/2110.01632