Subproject A2: Milky Way Satellites as Cosmological Probes

Andreas Just (ARI)

There is a wide range of predictions about the structural properties of the debris of dissolving satellite galaxies. For the interpretation of stellar populations in disk and bulge of the Milky Way it is essential to quantify the amount of stars formed in satellite galaxies and ending-up in the inner Galaxy. In our hybrid approach we combine satellite galaxy populations from cosmological simulations with a high-resolution realization of the Milky Way Galaxy. In a series of numerical simulations we will analyze the spatial distribution of stars originating from satellites and investigate their kinematic properties in order to identify them in observational samples.

Cosmological satellite galaxies become tidally disrupted as a result of pericentre passages through the Milky Way's disc. The stripped dark matter forms tidal streams, while the satellites keep their innermost dense cores intact. Simulated using the SUPERBOX-10 N-body code with initial conditions from the Aq-A-2 cosmological simulation. (Moetazedian et al. 2015)

Publications

Mardini, Mohammad K.; Placco, Vinicius M.; Meiron, Yohai; Ishchenko, Marina; Avramov, Branislav; Mazzarini, Matteo; Berczik, Peter; Arca Sedda, Manuel; Beers, Timothy C.; Frebel, Anna; Taani, Ali; Donnari, Martina; Al-Wardat, Mashhoor A.; Zhao, Gang

Cosmological Insights into the Early Accretion of r-process-enhanced Stars. I. A Comprehensive Chemodynamical Analysis of LAMOST J1109+0754

11/2020 ApJ 903, 88

Mazzarini, Matteo; Just, Andreas; Macciò, Andrea V.; Moetazedian, Reza

Simulations of satellite tidal debris in the Milky Way halo

04/2020 A&A 636, A106

Prudil, Z.; Dékány, I.; Smolec, R.; Catelan, M.; Grebel, E. K.; Kunder, A.

Humps and bumps: the effects of shocks on the optical light curves of fundamental-mode RR Lyrae stars

03/2020 A&A 635, A66

Buck, Tobias; Obreja, Aura; Macciò, Andrea V.; Minchev, Ivan; Dutton, Aaron A.; Ostriker, Jeremiah P.

NIHAO-UHD: the properties of MW-like stellar discs in high-resolution cosmological simulations

01/2020 MNRAS 491, 3461

Martínez-Delgado, David; Katherina Vivas, Anna; Grebel, Eva K.; Gallart, Carme; Pieres, Adriano; Bell, Cameron P. M.; Zivick, Paul; Lemasle, Bertrand; Clifton Johnson, Lent; Carballo-Bello, Julio A.; Noël, Noelia E. D.; Cioni, Maria-Rosa L.; Choi, Yumi; Besla, Gurtina; Schmidt, Judy; Zaritsky, Dennis; Gruendl, Robert A.; Seibert, Mark; Nidever, David; Monteagudo, Laura; Monelli, Mateo; Hubl, Bernhard; van der Marel, Roeland; Ballesteros, Fernando J.; Stringfellow, Guy; Walker, Alistair; Blum, Robert; Bell, Eric F.; Conn, Blair C.; Olsen, Knut; Martin, Nicolas; Chu, You-Hua; Inno, Laura; Boer, Thomas J. L.; Kallivayalil, Nitya; De Leo, Michele; Beletsky, Yuri; Neyer, Fabian; Muñoz, Ricardo R.

Nature of a shell of young stars in the outskirts of the Small Magellanic Cloud

11/2019 A&A 631, A98

Earp, Samuel W. F.; Debattista, Victor P.; Macciò, Andrea V.; Wang, Liang; Buck, Tobias; Khachaturyants, Tigran

Drivers of disc tilting I: correlations and possible drivers for Milky Way analogues

10/2019 MNRAS 488, 5728

Prudil, Z.; Dékány, I.; Grebel, E. K.; Catelan, M.; Skarka, M.; Smolec, R.

On the Oosterhoff dichotomy in the Galactic bulge - II. Kinematical distribution

08/2019 MNRAS 487, 3270

Editor: G. Parmentier