Ruprecht-Karls-Universität Heidelberg
Subproject A1: High-Resolution Hydrodynamical Simulations of the Milky Way's Formation in a Cosmological Context

Subproject A1: High-Resolution Hydrodynamical Simulations of the Milky Way's Formation in a Cosmological Context

Volker Springel (HITS/ARI), Hans-Walter Rix (MPIA)

It has been a long-standing challenge for cosmological simulations to produce realistic disk galaxies. During the first funding period, the cosmological simulation work within the SFB achieved important progress in finally forming disk galaxies with properties similar to observed late-type spirals such as the Milky Way. The fact that this simulation deadlock could be resolved is of profound importance for all theoretical modeling of galaxy formation within the cosmological ΛCDM paradigm. Another fundamental result concerns the finding that violent baryonic feedback processes can modify the central dark matter structure of galactic halos. This affects the central rotation curves of galaxies as well as those of their satellite systems, and clearly needs to be accurately understood in evaluating small-scale tensions between observations and theoretical predictions.

Emboldened by this progress, the numerical research of the SFB will continue its long-term perspective to raise the physical fidelity of the simulation models, with the goal to eventually reach a point where one can truly speak of "ab-initio" models of galaxy formation that rely on a minimum of additional assumptions besides that of adopting a certain background cosmology. In the near term, the high-resolution cosmological models possible in the second funding period will vastly improve the quality and statistical power of the representation of the collisionless stellar component in the model galaxies. This will in particular allow detailed studies of Galactic dynamics, metal enrichment, stellar streams in the halo, satellite structure, etc. – all embedded in a consistent cosmological setting. Naturally, these simulations lend themselves to detailed comparisons with the upcoming Gaia mission and with other observational data.

"Auriga" simulation of the Milky Way: the magnetic field strength in the present day. Streamlines indicate the direction of the magnetic field lines. (Grand et al. 2017)

Publications

Deason, Alis J.; Belokurov, Vasily; Koposov, Sergey E.; Gómez, Facundo A.; Grand, Robert J.; Marinacci, Federico; Pakmor, Rüdiger
09/2017 MNRAS 470, 1259


Grand, Robert J. J.; Gómez, Facundo A.; Marinacci, Federico; Pakmor, Rüdiger; Springel, Volker; Campbell, David J. R.; Frenk, Carlos S.; Jenkins, Adrian; White, Simon D. M.
05/2017 MNRAS 467, 179


Marinacci, Federico; Grand, Robert J. J.; Pakmor, Rüdiger; Springel, Volker; Gómez, Facundo A.; Frenk, Carlos S.; White, Simon D. M.
04/2017 MNRAS 466, 3859


Zhu, Qirong; Hernquist, Lars; Marinacci, Federico; Springel, Volker; Li, Yuexing
04/2017 MNRAS 466, 3876


Wang, Liang; Dutton, Aaron A.; Stinson, Gregory S.; Macciò, Andrea V.; Gutcke, Thales; Kang, Xi
04/2017 MNRAS 466, 4858


Gómez, Facundo A.; White, Simon D. M.; Grand, Robert J. J.; Marinacci, Federico; Springel, Volker; Pakmor, Rüdiger
03/2017 MNRAS 465, 3446


Kawata, Daisuke; Grand, Robert J. J.; Gibson, Brad K.; Casagrande, Luca; Hunt, Jason A. S.; Brook, Chris B.
01/2017 MNRAS 464, 702


Gutcke, Thales A.; Stinson, Greg S.; Macciò, Andrea V.; Wang, Liang; Dutton, Aaron A.
01/2017 MNRAS 464, 2796


Butsky, Iryna; Macciò, Andrea V.; Dutton, Aaron A.; Wang, Liang; Obreja, Aura; Stinson, Greg S.; Penzo, Camilla; Kang, Xi; Keller, Ben W.; Wadsley, James
10/2016 MNRAS 462, 663


Monari, Giacomo; Famaey, Benoit; Siebert, Arnaud; Grand, Robert J. J.; Kawata, Daisuke; Boily, Christian
10/2016 MNRAS 461, 3835


Dutton, Aaron A.; Macciò, Andrea V.; Dekel, Avishai; Wang, Liang; Stinson, Gregory; Obreja, Aura; Di Cintio, Arianna; Brook, Chris; Buck, Tobias; Kang, Xi
09/2016 MNRAS 461, 2658


Grand, Robert J. J.; Springel, Volker; Kawata, Daisuke; Minchev, Ivan; Sánchez-Blázquez, Patricia; Gómez, Facundo A.; Marinacci, Federico; Pakmor, Rüdiger; Campbell, David J. R.
07/2016 MNRAS 460, L94


Monachesi, Antonela; Gómez, Facundo A.; Grand, Robert J. J.; Kauffmann, Guinevere; Marinacci, Federico; Pakmor, Rüdiger; Springel, Volker; Frenk, Carlos S.
06/2016 MNRAS 459, L46


Obreja, Aura; Stinson, Gregory S.; Dutton, Aaron A.; Macciò, Andrea V.; Wang, Liang; Kang, Xi
06/2016 MNRAS 459, 467


Grand, Robert J. J.; Springel, Volker; Gómez, Facundo A.; Marinacci, Federico; Pakmor, Rüdiger; Campbell, David J. R.; Jenkins, Adrian
06/2016 MNRAS 459, 199


Tollet, Edouard; Macciò, Andrea V.; Dutton, Aaron A.; Stinson, Greg S.; Wang, Liang; Penzo, Camilla; Gutcke, Thales A.; Buck, Tobias; Kang, Xi; Brook, Chris; Di Cintio, Arianna; Keller, Ben W.; Wadsley, James
03/2016 MNRAS 456, 3542


Gómez, Facundo A.; White, Simon D. M.; Marinacci, Federico; Slater, Colin T.; Grand, Robert J. J.; Springel, Volker; Pakmor, Rüdiger
03/2016 MNRAS 456, 2779


Torrey, Paul; Wellons, Sarah; Machado, Francisco; Griffen, Brendan; Nelson, Dylan; Rodriguez-Gomez, Vicente; McKinnon, Ryan; Pillepich, Annalisa; Ma, Chung-Pei; Vogelsberger, Mark; Springel, Volker; Hernquist, Lars
12/2015 MNRAS 454, 2770


Bauer, Andreas; Springel, Volker; Vogelsberger, Mark; Genel, Shy; Torrey, Paul; Sijacki, Debora; Nelson, Dylan; Hernquist, Lars
11/2015 MNRAS 453, 3593


Marinacci, Federico; Vogelsberger, Mark; Mocz, Philip; Pakmor, Rüdiger
11/2015 MNRAS 453, 3999


Stinson, G. S.; Dutton, A. A.; Wang, L.; Macciò, A. V.; Herpich, J.; Bradford, J. D.; Quinn, T. R.; Wadsley, J.; Keller, B.
11/2015 MNRAS 454, 1105


Grand, Robert J. J.; Bovy, Jo; Kawata, Daisuke; Hunt, Jason A. S.; Famaey, Benoit; Siebert, Arnaud; Monari, Giacomo; Cropper, Mark
10/2015 MNRAS 453, 1867


Kannan, Rahul; Macciò, Andrea V.; Fontanot, Fabio; Moster, Benjamin P.; Karman, Wouter; Somerville, Rachel S.
10/2015 MNRAS 452, 4347


Karman, Wouter; Macciò, Andrea V.; Kannan, Rahul; Moster, Benjamin P.; Somerville, Rachel S.
09/2015 MNRAS 452, 2984


Sijacki, Debora; Vogelsberger, Mark; Genel, Shy; Springel, Volker; Torrey, Paul; Snyder, Gregory F.; Nelson, Dylan; Hernquist, Lars
09/2015 MNRAS 452, 575


Gutcke, Thales A.; Fanidakis, Nikos; Macciò, Andrea V.; Lacey, Cedric
08/2015 MNRAS 451, 3759


Genel, Shy; Fall, S. Michael; Hernquist, Lars; Vogelsberger, Mark; Snyder, Gregory F.; Rodriguez-Gomez, Vicente; Sijacki, Debora; Springel, Volker
05/2015 ApJ 804, L40


Courteau, Stéphane; Dutton, Aaron A.
03/2015 ApJ 801, L20


Herpich, J.; Stinson, G. S.; Dutton, A. A.; Rix, H.-W.; Martig, M.; Roskar, R.; Macciò, A. V.; Quinn, T. R.; Wadsley, J.
03/2015 MNRAS 448, L99


Fraternali, F.; Marasco, A.; Armillotta, L.; Marinacci, F.
02/2015 MNRAS 447, L70


Editor: T. Lisker
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