Staff profile

Research Groups

• Astronomy and Astrophysics
• Institute for Computational Cosmology

Software

SWIFT: A platform-independent, Open-Source code for cosmological Smoothed Particle Hydrodynamics (SPH) simulations on shared-memory clusters using task-based parallelism and asynchronous communication.

QuickSched: A platform-independent, task-based library using conflicts and graph decomposition for optimal load-balancing

• Computational Fluid dynamics
• Dark Matter
• Effects of baryons on large scale structures
• Extragalactic astronomy and cosmology
• Parallel Computing and Big Data

Conference Paper

• Schaller, M., Gonnet, P., Chalk, A. B., & Draper, P. W. (2016). SWIFT: Using task-based parallelism, fully asynchronous communication, and graph partition-based domain decomposition for strong scaling on more than 100,000 cores. In PASC '16 : Proceedings of the Platform for Advanced Scientific Computing Conference : Lausanne, Switzerland — June 08 - 10, 2016. https://doi.org/10.1145/2929908.2929916
• Gonnet, P., Schaller, M., Theuns, T., & Chalk, A. (2013). SWIFT: Fast algorithms for multi-resolution SPH on multi-core architectures.
• Schaller, M., Bower, R., & Theuns, T. (2013). On the use of particle based methods for cosmological hydrodynamical simulations.
• Marongiu, J., Leduc, J., & Schaller, M. (2011). GPU implementation of a SPH-ALE fluid dynamics solver.

Journal Article

• Schaller, M., Borrow, J., Draper, P. W., Ivkovic, M., McAlpine, S., Vandenbroucke, B., …Xiang, Z. (2024). Swift: A modern highly-parallel gravity and smoothed particle hydrodynamics solver for astrophysical and cosmological applications. Monthly Notices of the Royal Astronomical Society, https://doi.org/10.1093/mnras/stae922
• Huško, F., Lacey, C. G., Schaye, J., Nobels, F. S. J., & Schaller, M. (2024). Winds versus jets: a comparison between black hole feedback modes in simulations of idealized galaxy groups and clusters. Monthly Notices of the Royal Astronomical Society, 527(3), 5988–6020. https://doi.org/10.1093/mnras/stad3548
• Kugel, R., Schaye, J., Schaller, M., Helly, J. C., Braspenning, J., Elbers, W., …Vernon, I. (2023). FLAMINGO: calibrating large cosmological hydrodynamical simulations with machine learning. Monthly Notices of the Royal Astronomical Society, 526(4), 6103-6127. https://doi.org/10.1093/mnras/stad2540
• Schaye, J., Kugel, R., Schaller, M., Helly, . J. C., Braspenning, J., Elbers, W., …Nobels, F. S. J. (2023). The FLAMINGO project: cosmological hydrodynamical simulations for large-scale structure and galaxy cluster surveys. Monthly Notices of the Royal Astronomical Society, 526(4), 4978–5020. https://doi.org/10.1093/mnras/stad2419
• Elbers, W., Helly, J., Frenk, C., McCarthy, I. G., Salcido, J., Schaye, J., …Upadhye, A. (2023). The FLAMINGO project: revisiting the S8 tension and the role of baryonic physics. Monthly Notices of the Royal Astronomical Society, 526(4), 5494–5519. https://doi.org/10.1093/mnras/stad3107
• Puglisi, A., Dudzevičiūtė, U., Swinbank, M., Gillman, S., Tiley, A. L., Bower, R. G., …Sharples, R. M. (2023). KURVS: the outer rotation curve shapes and dark matter fractions of z ∼ 1.5 star-forming galaxies. Monthly Notices of the Royal Astronomical Society, 524(2), 2814-2835. https://doi.org/10.1093/mnras/stad1966
• Lovell, M. R., Barnes, D., Bahé, Y., Schaye, J., Schaller, M., Theuns, T., …Bower, R. G. (2019). The signal of decaying dark matter with hydrodynamical simulations. Monthly Notices of the Royal Astronomical Society, 485(3), 4071-4089. https://doi.org/10.1093/mnras/stz691
• Kulier, A., Padilla, N., Schaye, J., Crain, R., Schaller, M., Bower, R., …Paillas, E. (2019). The evolution of the baryon fraction in halos as a cause of scatter in the galaxy stellar mass in the EAGLE simulation. Monthly Notices of the Royal Astronomical Society, 482(3), 3261-3273. https://doi.org/10.1093/mnras/sty2914
• Tissera, P., Rosas-Guevara, Y., Bower, R., Crain, R., del P Lagos, C., Schaller, M., …Theuns, T. (2019). The oxygen abundance gradients in the gas discs of galaxies in the EAGLE simulation. Monthly Notices of the Royal Astronomical Society, 482(2), 2208-2221. https://doi.org/10.1093/mnras/sty2817
• Elagali, A., Lagos, C. D., Wong, O. I., Staveley-Smith, L., Trayford, J. W., Schaller, M., …Abadi, M. G. (2018). Ring galaxies in the EAGLE hydrodynamical simulations. Monthly Notices of the Royal Astronomical Society, 481(3), 2951-2969. https://doi.org/10.1093/mnras/sty2462
• Tagore, A., Barnes, D., Jackson, N., Kay, S., Schaller, M., Schaye, J., & Theuns, T. (2018). Reducing biases on H0 measurements using strong lensing and galaxy dynamics: results from the eagle simulation. Monthly Notices of the Royal Astronomical Society, 474(3), 3403-3422. https://doi.org/10.1093/mnras/stx2965
• Ploeckinger, S., Sharma, K., Schaye, J., Crain, R. A., Schaller, M., & Barber, C. (2018). Tidal dwarf galaxies in cosmological simulations. Monthly Notices of the Royal Astronomical Society, 474(1), 580-596. https://doi.org/10.1093/mnras/stx2787
• Mitchell, P. D., Lacey, C. G., Lagos, C. D., Frenk, C. S., Bower, R. G., Cole, S., …Theuns, T. (2018). Comparing galaxy formation in semi-analytic models and hydrodynamical simulations. Monthly Notices of the Royal Astronomical Society, 474(1), 492-521. https://doi.org/10.1093/mnras/stx2770
• Camps, P., Trc̆ka, A., Trayford, J., Baes, M., Theuns, T., Crain, R. A., …Schaye, J. (2018). Data Release of UV to Submillimeter Broadband Fluxes for Simulated Galaxies from the EAGLE Project. Astrophysical Journal Supplement, 234(2), Article 20. https://doi.org/10.3847/1538-4365/aaa24c
• Tescari, E., Cortese, L., Power, C., Wyithe, J., Ho, I., Crain, R., …Tonini, C. (2018). The SAMI Galaxy Survey: understanding observations of large-scale outflows at low redshift with EAGLE simulations. Monthly Notices of the Royal Astronomical Society, 473(1), 380-397. https://doi.org/10.1093/mnras/stx2315
• Correa, C. A., Schaye, J., Clauwens, B., Bower, R. G., Crain, R. A., Schaller, M., …Thob, A. C. (2017). The relation between galaxy morphology and colour in the EAGLE simulation. Monthly Notices of the Royal Astronomical Society: Letters, 472(1), L45-L49. https://doi.org/10.1093/mnrasl/slx133
• Barnes, D. J., Kay, S. T., Bahé, Y. M., Dalla Vecchia, C., McCarthy, I. G., Schaye, J., …White, S. D. (2017). The Cluster-EAGLE project: global properties of simulated clusters with resolved galaxies. Monthly Notices of the Royal Astronomical Society, 471(1), 1088-1106. https://doi.org/10.1093/mnras/stx1647
• Paillas, E., Lagos, C. D., Padilla, N., Tissera, P., Helly, J., & Schaller, M. (2017). Baryon effects on void statistics in the EAGLE simulation. Monthly Notices of the Royal Astronomical Society, 470(4), 4434-4452. https://doi.org/10.1093/mnras/stx1514
• Artale, M. C., Pedrosa, S. E., Trayford, J. W., Theuns, T., Farrow, D. J., Norberg, P., …Schaller, M. (2017). Small-scale galaxy clustering in the eagle simulation. Monthly Notices of the Royal Astronomical Society, 470(2), 1771-1787. https://doi.org/10.1093/mnras/stx1263
• Qu, Y., Helly, J., Bower, R., Theuns, T., Crain, R., Frenk, C., …White, S. (2017). A chronicle of galaxy mass assembly in the EAGLE simulation. Monthly Notices of the Royal Astronomical Society, 464(2), 1659-1675. https://doi.org/10.1093/mnras/stw2437
• Schaller, M., Frenk, C. S., Fattahi, A., Navarro, J. F., Oman, K. A., & Sawala, T. (2016). The low abundance and insignificance of dark discs in simulated Milky Way galaxies. Monthly Notices of the Royal Astronomical Society: Letters, 461(1), L56-L61. https://doi.org/10.1093/mnrasl/slw101
• Schaller, M., Frenk, C. S., Theuns, T., Calore, F., Bertone, G., Bozorgnia, N., …Schaye, J. (2016). Dark matter annihilation radiation in hydrodynamic simulations of Milky Way haloes. Monthly Notices of the Royal Astronomical Society, 455(4), 4442-4451. https://doi.org/10.1093/mnras/stv2667
• Schaller, M., Dalla Vecchia, C., Schaye, J., Bower, R. G., Theuns, T., Crain, R. A., …McCarthy, I. G. (2015). The EAGLE simulations of galaxy formation: the importance of the hydrodynamics scheme. Monthly Notices of the Royal Astronomical Society, 454(3), 2277-2291. https://doi.org/10.1093/mnras/stv2169
• Schaller, M., Robertson, A., Massey, R., Bower, R. G., & Eke, V. R. (2015). The offsets between galaxies and their dark matter in Λ cold dark matter. Monthly Notices of the Royal Astronomical Society: Letters, 453(1), L58-L62. https://doi.org/10.1093/mnrasl/slv104
• Schaller, M., Frenk, C. S., Bower, R. G., Theuns, T., Trayford, J. W., Crain, R. A., …McCarthy, I. G. (2015). The effect of baryons on the inner density profiles of rich clusters. Monthly Notices of the Royal Astronomical Society, 452(1), 343-355. https://doi.org/10.1093/mnras/stv1341
• Schaller, M., Frenk, C. S., Bower, R. G., Theuns, T., Jenkins, A., Schaye, J., …McCarthy, I. G. (2015). Baryon effects on the internal structure of ΛCDM haloes in the EAGLE simulations. Monthly Notices of the Royal Astronomical Society, 451(2), 1247-1267. https://doi.org/10.1093/mnras/stv1067
• Schaller, M., Becker, C., Ruchayskiy, O., Boyarsky, A., & Shaposhnikov, M. (2014). A new framework for numerical simulations of structure formation. Monthly Notices of the Royal Astronomical Society, 442(4), 3073-3095. https://doi.org/10.1093/mnras/stu1069