Staff profile

Journal Article

• Elbers, W., Frenk, C. S., Jenkins, A., Li, B., Helly, J. C., Kugel, R., Schaller, M., Schaye, J., Braspenning, J., Kwan, J., McCarthy, I. G., Salcido, J., van Daalen, M. P., Vandenbroucke, B., & Pascoli, S. (2025). The FLAMINGO project: the coupling between baryonic feedback and cosmology in light of the S8 tension. Monthly Notices of the Royal Astronomical Society, 537(2), 2160-2178. https://doi.org/10.1093/mnras/staf093
• Kugel, R., Schaye, J., Schaller, M., McCarthy, I. G., Braspenning, J., Helly, J. C., Forouhar Moreno, V. J., & McGibbon, R. J. (2024). The FLAMINGO project: a comparison of galaxy cluster samples selected on mass, X-ray luminosity, Compton-Y parameter, or galaxy richness. Monthly Notices of the Royal Astronomical Society, 534(3), 2378-2396. https://doi.org/10.1093/mnras/stae2218
• Pizzati, E., Hennawi, J. F., Schaye, J., Schaller, M., Eilers, A.-C., Wang, F., Frenk, C. S., Elbers, W., Helly, J. C., Mackenzie, R., Matthee, J., Bordoloi, R., Kashino, D., Naidu, R. P., & Yue, M. (2024). A unified model for the clustering of quasars and galaxies at z ≈ 6. Monthly Notices of the Royal Astronomical Society, 534(4), 3155-3175. https://doi.org/10.1093/mnras/stae2307
• Eilers, A.-C., Mackenzie, R., Pizzati, E., Matthee, J., Hennawi, J. F., Zhang, H., Bordoloi, R., Kashino, D., Lilly, S. J., Naidu, R. P., Simcoe, R. A., Yue, M., Frenk, C. S., Helly, J. C., Schaller, M., & Schaye, J. (2024). EIGER. VI. The Correlation Function, Host Halo Mass, and Duty Cycle of Luminous Quasars at z ≳ 6. The Astrophysical Journal, 974(2), Article 275. https://doi.org/10.3847/1538-4357/ad778b
• Kay, S. T., Braspenning, J., Chluba, J., Helly, J. C., Kugel, R., Schaller, M., & Schaye, J. (2024). Relativistic SZ temperatures and hydrostatic mass bias for massive clusters in the FLAMINGO simulations. Monthly Notices of the Royal Astronomical Society, 534(1), 251-270. https://doi.org/10.1093/mnras/stae1991
• Braspenning, J., Schaye, J., Schaller, M., McCarthy, I. G., Kay, S. T., Helly, J. C., Kugel, R., Elbers, W., Frenk, C. S., Kwan, J., Salcido, J., van Daalen, M. P., & Vandenbroucke, B. (2024). The FLAMINGO project: galaxy clusters in comparison to X-ray observations. Monthly Notices of the Royal Astronomical Society, 533(3), 2656-2676. https://doi.org/10.1093/mnras/stae1436
• Schaller, M., Borrow, J., Draper, P. W., Ivkovic, M., McAlpine, S., Vandenbroucke, B., Bahé, Y., Chaikin, E., Chalk, A. B. G., Chan, T. K., Correa, C., van Daalen, M., Elbers, W., Gonnet, P., Hausammann, L., Helly, J., Huško, F., Kegerreis, J. A., Nobels, F. S. J., Ploeckinger, S., …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, 530(2), 2378–2419. https://doi.org/10.1093/mnras/stae922
• Upadhye, A., Kwan, J., McCarthy, I. G., Salcido, J., Helly, J. C., Kugel, R., Schaller, M., Schaye, J., Braspenning, J., Elbers, W., Frenk, C. S., van Daalen, M. P., Vandenbroucke, B., & Broxterman, J. C. (2024). Non-linear CMB lensing with neutrinos and baryons: FLAMINGO simulations versus fast approximations. Monthly Notices of the Royal Astronomical Society, 529(2), 1862-1876. https://doi.org/10.1093/mnras/stae663
• Broxterman, J. C., Schaller, M., Schaye, J., Hoekstra, H., Kuijken, K., Helly, J. C., Kugel, R., Braspenning, J., Elbers, W., Frenk, C. S., Kwan, J., McCarthy, I. G., Salcido, J., van Daalen, M. P., & Vandenbroucke, B. (2024). The FLAMINGO project: baryonic impact on weak gravitational lensing convergence peak counts. Monthly Notices of the Royal Astronomical Society, 529(3), 2309-2326. https://doi.org/10.1093/mnras/stae698
• Schaye, J., Kugel, R., Schaller, M., Helly, . J. C., Braspenning, J., Elbers, W., McCarthy, I. G., van Daalen, M. P., Vandenbroucke, B., Frenk, C. S., Kwan, J., Salcido, J., Bahe´, Y. M., Borrow, J., Chaikin, E., Hahn, O., Husko, F., Jenkins, A., Lacey, C. G., & 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., Kwan, J., Schaller, M., Braspenning, J., van Daalen, M. P., Vandenbroucke, B., Conley, J. T., Font, A. S., & 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
• Wang, W., Zhu, L., Li, Z., Chen, Y., Han, J., He, F., Yang, X., Jing, Y., Frenk, C., Nie, J., Tian, H., Liu, C., Cao, Y., Qiu, X., Helly, J., Grand, R. J. J., & Gomez, F. A. (2022). Is the Core-cusp Problem a Matter of Perspective? Jeans Anisotropic Modeling against Numerical Simulations. Astrophysical Journal, 941(2), Article 108. https://doi.org/10.3847/1538-4357/ac9b19
• McAlpine, S., Helly, J. C., Schaller, M., Sawala, T., Lavaux, G., Jasche, J., Frenk, C. S., Jenkins, A., Lucey, J. R., & Johansson, P. H. (2022). SIBELIUS-DARK: a galaxy catalogue of the local volume from a constrained realization simulation. Monthly Notices of the Royal Astronomical Society, 512(4), 5823-5847. https://doi.org/10.1093/mnras/stac295
• Gómez, J. S., Padilla, N., Helly, J., Lacey, C., Baugh, C., & Lagos, C. (2022). Halo merger tree comparison: impact on galaxy formation models. Monthly Notices of the Royal Astronomical Society, 510(4), 5500-5519. https://doi.org/10.1093/mnras/stab3661
• Grove, C., Chuang, C.-H., Devi, N. C., Garrison, L., L’Huillier, B., Feng, Y., Helly, J., Hernández-Aguayo, C., Alam, S., Zhang, H., Yu, Y., Cole, S., Eisenstein, D., Norberg, P., Wechsler, R., Brooks, D., Dawson, K., Landriau, M., Meisner, A., Poppett, C., …Valenzuela, O. (2022). The DESI N-body simulation project – I. Testing the robustness of simulations for the DESI dark time survey. Monthly Notices of the Royal Astronomical Society, 515(2), https://doi.org/10.1093/mnras/stac1947
• Thomas, G. F., Martin, N. F., Fattahi, A., Ibata, R. A., Helly, J., McConnachie, A. W., Frenk, C., Gómez, F. A., Grand, R. J., Gwyn, S., Mackey, D., Marinacci, F., & Pakmor, R. (2021). Observing the Stellar Halo of Andromeda in Cosmological Simulations: The AURIGA2PANDAS Pipeline. Astrophysical Journal, 910(2), Article 92. https://doi.org/10.3847/1538-4357/abdfd2
• Newton, O., Leo, M., Cautun, M., Jenkins, A., Frenk, C. S., Lovell, M. R., Helly, J. C., Benson, A. J., & Cole, S. (2021). Constraints on the properties of warm dark matter using the satellite galaxies of the Milky Way. Journal of Cosmology and Astroparticle Physics, 2021(08), Article 062. https://doi.org/10.1088/1475-7516/2021/08/062
• Gonzalez-Perez, V., Cui, W., Contreras, S., Baugh, C., Comparat, J., Griffin, A., Helly, J., Knebe, A., Lacey, C., & Norberg, P. (2020). Do model emission line galaxies live in filaments at z∼1?. Monthly Notices of the Royal Astronomical Society, 498(2), 1852-1870. https://doi.org/10.1093/mnras/staa2504
• Newton, O., Cautun, M., Jenkins, A., Frenk, C. S., & Helly, J. C. (2018). The total satellite population of the Milky Way. Monthly Notices of the Royal Astronomical Society, 479(3), 2853-2870. https://doi.org/10.1093/mnras/sty1085
• Mitchell, P. D., Lacey, C. G., Lagos, C. D., Frenk, C. S., Bower, R. G., Cole, S., Helly, J. C., Schaller, M., Gonzalez-Perez, V., & 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
• 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
• Qu, Y., Helly, J., Bower, R., Theuns, T., Crain, R., Frenk, C., Furlong, M., McAlpine, S., Schaller, M., Schaye, J., & 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
• Lacey, C. G., Baugh, C. M., Frenk, C. S., Benson, A. J., Bower, R. G., Cole, S., Gonzalez-Perez, V., Helly, J. C., Lagos, C. D., & Mitchell, P. D. (2016). A unified multiwavelength model of galaxy formation. Monthly Notices of the Royal Astronomical Society, 462(4), 3854-3911. https://doi.org/10.1093/mnras/stw1888
• Guo, Q., Gonzalez-Perez, V., Guo, Q., Schaller, M., Furlong, M., Bower, R., Cole, S., Crain, R., Frenk, C., Helly, J., Lacey, C., Lagos, C. D. P., Mitchell, P., Schaye, J., & Theuns, T. (2016). Galaxies in the EAGLE hydrodynamical simulation and in the Durham and Munich semi-analytical models. Monthly Notices of the Royal Astronomical Society, 461(4), 3457-3482. https://doi.org/10.1093/mnras/stw1525
• Hellwing, W., Frenk, C., Cautun, M., Bose, S., Helly, J., Jenkins, A., Sawala, T., & Cytowski, M. (2016). The Copernicus Complexio: a high-resolution view of the small-scale Universe. Monthly Notices of the Royal Astronomical Society, 457(4), 3492-3509. https://doi.org/10.1093/mnras/stw214
• Campbell, D., Baugh, C., Mitchell, P., Helly, J., Gonzalez-Perez, V., Lacey, C., Lagos, C. D. P., Simha, V., & Farrow, D. (2015). A new methodology to test galaxy formation models using the dependence of clustering on stellar mass. Monthly Notices of the Royal Astronomical Society, 452(1), 852-871. https://doi.org/10.1093/mnras/stv1315
• Jiang, L., Helly, J., Cole, S., & Frenk, C. (2014). N-body dark matter haloes with simple hierarchical histories. Monthly Notices of the Royal Astronomical Society, 440(3), 2115-2135. https://doi.org/10.1093/mnras/stu390
• Springel, V., White, S., Jenkins, A., Frenk, C., Yoshida, N., Gao, L., Navarro, J., Thacker, R., Croton, D., Helly, J., Peacock, J., Cole, S., Thomas, P., Couchman, H., Evrard, A., Colberg, J., & Pearce, F. (2005). Simulations of the formation, evolution and clustering of galaxies and quasars. Nature, 435(7042), 629-636. https://doi.org/10.1038/nature03597
• Helly, J., Cole, S., Frenk, C., Baugh, C., Benson, A., & Lacey, C. (2003). Galaxy formation using halo merger histories taken from N-body simulations. Monthly Notices of the Royal Astronomical Society, 338(4), 903-912. https://doi.org/10.1046/j.1365-8711.2003.06151.x
• Helly, J., Cole, S., Frenk, C., Baugh, C., Benson, A., Lacey, C., & Pearce, F. (2003). A comparison of gas dynamics in smooth particle hydrodynamics and semi-analytic models of galaxy formation. Monthly Notices of the Royal Astronomical Society, 338(4), 913-925. https://doi.org/10.1046/j.1365-8711.2003.06152.x