Zobrazeno 1 - 10
of 461
pro vyhledávání: '"Grand, Robert J J"'
Ongoing large stellar spectroscopic surveys of the Milky Way seek to reconstruct the major events in the assembly history of the Galaxy. Chemical and kinematic observations can be used to separate the contributions of different progenitor galaxies to
Externí odkaz:
http://arxiv.org/abs/2410.13491
Autor:
Riley, Alexander H., Shipp, Nora, Simpson, Christine M., Bieri, Rebekka, Fattahi, Azadeh, Brown, Shaun T., Oman, Kyle A., Fragkoudi, Francesca, Gómez, Facundo A., Grand, Robert J. J., Marinacci, Federico
In a hierarchically formed Universe, galaxies accrete smaller systems that tidally disrupt as they evolve in the host's potential. We present a complete catalogue of disrupting galaxies accreted onto Milky Way-mass haloes from the Auriga suite of cos
Externí odkaz:
http://arxiv.org/abs/2410.09144
Autor:
Shipp, Nora, Riley, Alexander H., Simpson, Christine M., Bieri, Rebekka, Necib, Lina, Arora, Arpit, Fragkoudi, Francesca, Gómez, Facundo A., Grand, Robert J. J., Marinacci, Federico
Galaxies like the Milky Way are surrounded by complex populations of satellites at all stages of tidal disruption. In this paper, we present a dynamical study of the disrupting satellite galaxies in the Auriga simulations that are orbiting 28 distinc
Externí odkaz:
http://arxiv.org/abs/2410.09143
Recovering chemical bimodalities in observed edge-on stellar disks: insights from AURIGA simulations
Publikováno v:
A&A 691, A61 (2024)
We assessed the ability to recover chemical bimodalities in integral-field spectroscopy (IFS) observations of edge-on galaxies, using 24 Milky Way-mass galaxies from the AURIGA zoom-in cosmological simulations. We first analyzed the distribution of s
Externí odkaz:
http://arxiv.org/abs/2409.07533
We study the dependence of the physical and observable properties of the CGM on its halo mass. We analyse 22 simulations from the Auriga suite of high resolution cosmological `zoom-in' simulations at $z=0$ with halo masses $10^{10}~\text{M}_{\odot}\l
Externí odkaz:
http://arxiv.org/abs/2409.05578
Autor:
Kizhuprakkat, Namitha, Cooper, Andrew P., Riley, Alexander H., Koposov, Sergey E., Aguilar, Jessica Nicole, Ahlen, Steven, Prieto, Carlos Allende, Brooks, David, Claybaugh, Todd, Dawson, Kyle, de la Macorra, Axel, Doel, Peter, Forero-Romero, Jaime E., Frenk, Carlos, Gaztañaga, Enrique, Gnedin, Oleg Y., Grand, Robert J. J., Gontcho, Satya Gontcho A, Honscheid, Klaus, Kehoe, Robert, Landriau, Martin, Manera, Marc, Meisner, Aaron, Miquel, Ramon, Nie, Jundan, Prada, Francisco, Rezaie, Mehdi, Rossi, Graziano, Sanchez, Eusebio, Schubnell, Michael, Seo, Hee-Jong, Tarlé, Gregory, Valluri, Monica, Zhou, Zhimin
The Dark Energy Spectroscopic Instrument Milky Way Survey (DESI MWS) will explore the assembly history of the Milky Way by characterising remnants of ancient dwarf galaxy accretion events and improving constraints on the distribution of dark matter i
Externí odkaz:
http://arxiv.org/abs/2406.08921
Autor:
Iza, Federico G., Nuza, Sebastián E., Scannapieco, Cecilia, Grand, Robert J. J., Gómez, Facundo A., Springel, Volker, Pakmor, Rüdiger, Marinacci, Federico, Fragkoudi, Francesca
We investigate the growth of stellar discs in Milky Way-mass galaxies using the magnetohydrodynamical simulations of the Auriga Project in a full cosmological context. We focus on the gas accretion process along the discs, calculating the net, infall
Externí odkaz:
http://arxiv.org/abs/2404.07320
Autor:
Li, Zefeng, Grand, Robert J. J., Wisnioski, Emily, Mendel, J. Trevor, Krumholz, Mark R., Ting, Yuan-Sen, Pakmor, Ruediger, Gómez, Facundo A., Marinacci, Federico, Ciucă, Ioana
We study the cosmological evolution of the two-point correlation functions of galactic gas-phase metal distributions using the 28 simulated galaxies from the Auriga Project. Using mock observations of the $z = 0$ snapshots to mimic our past work, we
Externí odkaz:
http://arxiv.org/abs/2402.08632
Publikováno v:
A&A 690, A286 (2024)
Aims. Recent observational studies suggest that feedback from active galactic nuclei (AGNs) may play an important role in the formation and evolution of low-mass dwarf galaxies, an issue that has received little attention from a theoretical perspecti
Externí odkaz:
http://arxiv.org/abs/2402.00929
Autor:
Grand, Robert J. J., Fragkoudi, Francesca, Gómez, Facundo A., Jenkins, Adrian, Marinacci, Federico, Pakmor, Rüdiger, Springel, Volker
We present an extended suite of the Auriga cosmological gravo-magnetohydrodynamical "zoom-in" simulations of 40 Milky Way-mass halos and 26 dwarf galaxy-mass halos run with the moving-mesh code Arepo. Auriga adopts the $\Lambda$ Cold Dark Matter ($\L
Externí odkaz:
http://arxiv.org/abs/2401.08750