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Apostle–Auriga: Effects of stellar feedback subgrid models on the evolution of angular momentum in disc galaxies (2024)
Journal Article
Yang, H., Liao, S., Fattahi, A., Frenk, C. S., Gao, L., Guo, Q., Shao, S., Wang, L., Wright, R. J., & Zeng, G. (2024). Apostle–Auriga: Effects of stellar feedback subgrid models on the evolution of angular momentum in disc galaxies. Monthly Notices of the Royal Astronomical Society, 535(2), 1394-1405. https://doi.org/10.1093/mnras/stae2411

Utilizing the Apostle–Auriga simulations, which start from the same zoom-in initial conditions of Local Group-like systems but run with different galaxy formation subgrid models and hydrodynamic solvers, we study the impact of stellar feedback models... Read More about Apostle–Auriga: Effects of stellar feedback subgrid models on the evolution of angular momentum in disc galaxies.

ARTEMIS emulator: exploring the effect of cosmology and galaxy formation physics on Milky Way-mass haloes and their satellites (2024)
Journal Article
Brown, S. T., Fattahi, A., McCarthy, I. G., Font, A. S., Oman, K. A., & Riley, A. H. (2024). ARTEMIS emulator: exploring the effect of cosmology and galaxy formation physics on Milky Way-mass haloes and their satellites. Monthly Notices of the Royal Astronomical Society, 532(2), 1223-1240. https://doi.org/10.1093/mnras/stae1378

We present the new ARTEMIS emulator suite of high-resolution (baryon mass of 2.23 × 104h−1 M⊙) zoom-in simulations of Milky Way-mass systems. Here, three haloes from the original ARTEMIS sample have been rerun multiple times, systematically varying p... Read More about ARTEMIS emulator: exploring the effect of cosmology and galaxy formation physics on Milky Way-mass haloes and their satellites.

Pre-supernova stellar feedback in nearby starburst dwarf galaxies (2024)
Journal Article
McLeod, A. F., Fattahi, A., Belfiore, F., Rowland, L. E., Cresci, G., Hunt, L., …Venturi, G. (2024). Pre-supernova stellar feedback in nearby starburst dwarf galaxies. Astronomy & Astrophysics, 685, Article A46. https://doi.org/10.1051/0004-6361/202348029

Context. Stellar feedback in dwarf galaxies remains, to date, poorly explored, yet is crucial to understanding galaxy evolution in the early Universe. In particular, pre-supernova feedback has recently been found to play a significant role in regulat... Read More about Pre-supernova stellar feedback in nearby starburst dwarf galaxies.

Are there any extragalactic high speed dark matter particles in the Solar neighborhood? (2024)
Journal Article
Santos-Santos, I., Bozorgnia, N., Fattahi, A., & Navarro, J. F. (2024). Are there any extragalactic high speed dark matter particles in the Solar neighborhood?. Journal of Cosmology and Astroparticle Physics, 2024(03), Article 046. https://doi.org/10.1088/1475-7516/2024/03/046

We use the APOSTLE suite of cosmological hydrodynamical simulations of the Local Group to examine the high speed tail of the local dark matter velocity distribution in simulated Milky Way analogues. The velocity distribution in the Solar neighborhood... Read More about Are there any extragalactic high speed dark matter particles in the Solar neighborhood?.

Exploring the diversity and similarity of radially anisotropic Milky Way-like stellar haloes: implications for disrupted dwarf galaxy searches (2023)
Journal Article
Orkney, M. D. A., Laporte, C. F. P., Grand, R. J. J., Gómez, F. A., van de Voort, F., Fattahi, A., …Springel, V. (2023). Exploring the diversity and similarity of radially anisotropic Milky Way-like stellar haloes: implications for disrupted dwarf galaxy searches. Monthly Notices of the Royal Astronomical Society, 525(1), 683-705. https://doi.org/10.1093/mnras/stad2361

Velocity-dependent J-factors for Milky Way dwarf spheroidal analogues in cosmological simulations (2023)
Journal Article
Blanchette, K., Piccirillo, E., Bozorgnia, N., Strigari, L. E., Fattahi, A., Frenk, C. S., Navarro, J. F., & Sawala, T. (2023). Velocity-dependent J-factors for Milky Way dwarf spheroidal analogues in cosmological simulations. Journal of Cosmology and Astroparticle Physics, 2023(03), Article 021. https://doi.org/10.1088/1475-7516/2023/03/021

We study the impact of the dark matter velocity distribution modelling on signals from velocity-dependent dark matter annihilation in Milky Way dwarf spheroidal galaxies. Using the high resolution APOSTLE simulations, we identify analogues correspond... Read More about Velocity-dependent J-factors for Milky Way dwarf spheroidal analogues in cosmological simulations.

Unravelling the mass spectrum of destroyed dwarf galaxies with the metallicity distribution function (2023)
Journal Article
Deason, A. J., Koposov, S. E., Fattahi, A., & Grand, R. J. (2023). Unravelling the mass spectrum of destroyed dwarf galaxies with the metallicity distribution function. Monthly Notices of the Royal Astronomical Society, 520(4), 6091-6103. https://doi.org/10.1093/mnras/stad535

Accreted stellar populations are comprised of the remnants of destroyed galaxies, and often dominate the ‘stellar haloes’ of galaxies such as the Milky Way (MW). This ensemble of external contributors is a key indicator of the past assembly history o... Read More about Unravelling the mass spectrum of destroyed dwarf galaxies with the metallicity distribution function.

Energy wrinkles and phase-space folds of the last major merger (2022)
Journal Article
Belokurov, V., Vasiliev, E., Deason, A. J., Koposov, S. E., Fattahi, A., Dillamore, A. M., Davies, E. Y., & Grand, R. J. (2023). Energy wrinkles and phase-space folds of the last major merger. Monthly Notices of the Royal Astronomical Society, 518(4), 6200-6215. https://doi.org/10.1093/mnras/stac3436

Relying on the dramatic increase in the number of stars with full 6D phase-space information provided by the Gaia Data Release 3, we resolve the distribution of the stellar halo around the Sun to uncover signatures of incomplete phase-mixing. We show... Read More about Energy wrinkles and phase-space folds of the last major merger.