alejandro.benitezllambay@unimib.it

Phone: +39 02 6448 2391

© 2025. All rights reserved.

Publications

This is a list of selected publications. For more details, you can follow the links to the publisher or ArXiv. If you have any questions or comments after reading, feel free to reach out at alejandro.benitezllambay@unimib.it .

Non-explosive pre-supernova feedback in the COLIBRE model of galaxy formation

arXiv e-prints, arXiv:2509.25309, (2025).

Authors: Benítez-Llambay, Alejandro; Ploeckinger, Sylvia Schaye, Joop Richings, Alexander J. Chaikin, Evgenii Schaller, Matthieu Trayford, James W. Frenk, Carlos S. Huško, Filip Correa, Camila
Year: 2025
Link: ArXiv (HTML) / ArXiv (PDF) /

The evolution of the galaxy stellar mass function and star formation rates in the COLIBRE simulations from redshift 17 to 0

arXiv e-prints, arXiv:2509.07960, (2025).

Authors: Chaikin, Evgenii Schaye, Joop Schaller, Matthieu Ploeckinger, Sylvia Benítez-Llambay, Alejandro; Frenk, Carlos S. Huško, Filip McGibbon, Robert Richings, Alexander J. Trayford, James W.
Year: 2025
Link: ArXiv (HTML) / ArXiv (PDF) /

A hybrid active galactic nucleus feedback model with spinning black holes, winds and jets

arXiv e-prints, arXiv:2509.05179, (2025).

Authors: Huško, Filip Lacey, Cedric G. Schaye, Joop Schaller, Matthieu Chaikin, Evgenii Ploeckinger, Sylvia Benítez Llambay, Alejandro; Richings, Alexander J. Trayford, James W.
Year: 2025
Link: ArXiv (HTML) / ArXiv (PDF) /

The accreted stellar haloes of Milky Way-mass galaxies as a probe of the nature of the dark matter

Monthly Notices of the Royal Astronomical Society, 542, 1827, (2025).

Authors: Forouhar Moreno, Victor J. Fattahi, Azadeh Deason, Alis J. Henstridge, Fergus Benítez-Llambay, Alejandro;
Year: 2025
Link: Publisher (HTML) / Publisher (PDF) /

COLIBRE: calibrating subgrid feedback in cosmological simulations that include a cold gas phase

arXiv e-prints, arXiv:2509.04067, (2025).

Authors: Chaikin, Evgenii Schaye, Joop Schaller, Matthieu Ploeckinger, Sylvia Bahé, Yannick M. Benítez-Llambay, Alejandro; Correa, Camila Forouhar Moreno, Victor J. Frenk, Carlos S. Huško, Filip Kugel, Roi McGibbon, Robert Richings, Alexander J. Trayford, James W. Borrow, Josh Crain, Robert A. Helly, John C. Lacey, Cedric G. Ludlow, Aaron Nobels, Folkert S. J.
Year: 2025
Link: ArXiv (HTML) / ArXiv (PDF) /

The accreted stellar haloes of Milky Way-mass galaxies as a probe of the nature of the dark matter

Monthly Notices of the Royal Astronomical Society, , (2025).

Authors: Forourhar Moreno, Victor J. Fattahi, Azadeh Deason, Alis J. Henstridge, Fergus Benítez-Llambay, Alejandro;
Year: 2025
Link: ArXiv (HTML) / ArXiv (PDF) /

The COLIBRE project: cosmological hydrodynamical simulations of galaxy formation and evolution

arXiv e-prints, arXiv:2508.21126, (2025).

Authors: Schaye, Joop Chaikin, Evgenii Schaller, Matthieu Ploeckinger, Sylvia Huško, Filip McGibbon, Rob Trayford, James W. Benítez-Llambay, Alejandro; Correa, Camila Frenk, Carlos S. Richings, Alexander J. Forouhar Moreno, Victor J. Bahé, Yannick M. Borrow, Josh Durrant, Anna Gebek, Andrea Helly, John C. Jenkins, Adrian Lacey, Cedric G. Ludlow, Aaron Nobels, Folkert S. J.
Year: 2025
Link: ArXiv (HTML) / ArXiv (PDF) /

The First RELHIC? Cloud-9 is a Starless Gas Cloud

arXiv e-prints, arXiv:2508.20157, (2025).

Authors: Anand, Gagandeep S. Benítez-Llambay, Alejandro; Beaton, Rachael Fox, Andrew J. Navarro, Julio F. D'Onghia, Elena
Year: 2025
Link: ArXiv (HTML) / ArXiv (PDF) /

Efficient Computation of Smoothed Particle Hydrodynamic Properties on Regular Grids

Research Notes of the American Astronomical Society, 9, 122, (2025).

Authors: Benítez-Llambay, Alejandro;
Year: 2025
Link: Publisher (HTML) / Publisher (PDF) /

Modelling the evolution and influence of dust in cosmological simulations that include the cold phase of the interstellar medium

arXiv e-prints, arXiv:2505.13056, (2025).

Authors: Trayford, James W. Schaye, Joop Correa, Camila Ploeckinger, Sylvia Richings, Alexander J. Chaikin, Evgenii Schaller, Matthieu Benitez-Llambay, Alejandro; Frenk, Carlos Husko, Filip
Year: 2025
Link: ArXiv (HTML) / ArXiv (PDF) /

High-definition imaging of a filamentary connection between a close quasar pair at z = 3

Nature Astronomy, 9, 577, (2025).

Authors: Tornotti, Davide Fumagalli, Michele Fossati, Matteo Benitez-Llambay, Alejandro; Izquierdo-Villalba, David Travascio, Andrea Arrigoni Battaia, Fabrizio Cantalupo, Sebastiano Beckett, Alexander Bonoli, Silvia Dayal, Pratika D'Odorico, Valentina Dutta, Rajeshwari Lusso, Elisabeta Peroux, Celine Rafelski, Marc Revalski, Mitchell Spinoso, Daniele Swinbank, Mark
Year: 2025
Link: ArXiv (HTML) / ArXiv (PDF) / Publisher (HTML) /

The MUSE Ultra Deep Field: A 5 Mpc Stretch of the z ≈ 4 Cosmic Web Revealed in Emission

The Astrophysical Journal, 980, L43, (2025).

Authors: Tornotti, Davide Fumagalli, Michele Fossati, Matteo Arrigoni Battaia, Fabrizio Benitez-Llambay, Alejandro; Dayal, Pratika Dutta, Rajeshwari Peroux, Celine Rafelski, Marc Revalski, Mitchell
Year: 2025
Link: ArXiv (HTML) / ArXiv (PDF) / Publisher (HTML) / Publisher (PDF) /

Examining the Nature of the Starless Dark Matter Halo Candidate Cloud-9 with Very Large Array Observations

The Astrophysical Journal, 973, 61, (2024).

Authors: Benítez-Llambay, Alejandro; Dutta, Rajeshwari Fumagalli, Michele Navarro, Julio F.
Year: 2024
Link: Publisher (HTML) / Publisher (PDF) /

Elucidating the Nature of a 'Starless' Dark Matter Halo Near M94

HST Proposal, 17712, (2024).

Authors: Benitez-Llambay, Alejandro; Beaton, Rachael L. Anand, Gagandeep Singh D'Onghia, Elena Fox, Andrew J. Navarro, Julio
Year: 2024
Link:

Not So Round: VLA Observations of the Starless Dark Matter Halo Candidate Cloud-9

arXiv e-prints, arXiv:2406.18643, (2024).

Authors: Benítez-Llambay, Alejandro; Dutta, Rajeshwari Fumagalli, Michele Navarro, Julio F.
Year: 2024
Link: ArXiv (HTML) / ArXiv (PDF) /

The impact and response of mini-haloes and the interhalo medium on cosmic reionization

Monthly Notices of the Royal Astronomical Society, 528, 1296, (2024).

Authors: Chan, Tsang Keung Benítez-Llambay, Alejandro; Theuns, Tom Frenk, Carlos Bower, Richard
Year: 2024
Link: ArXiv (HTML) / ArXiv (PDF) / Publisher (HTML) / Publisher (PDF) /

GravSphere: Jeans modeling code

Astrophysics Source Code Library, ascl:2312.009, (2023).

Authors: Read, J. I. Steger, P. Walker, M. G. Genina, A. Frenk, C. S. Cole, S. Benítez-Llambay, A.; Ludlow, A. D. Navarro, J. F. Oman, K. A. Robertson, A. Collins, M. L. M. Ibata, R. A. Rich, R. M. Martin, N. F. Peñarrubia, J. Chapman, S. C. Tollerud, E. J. Weisz, D. R.
Year: 2023
Link: Publisher (HTML) /

Is a Recently Discovered H I Cloud near M94 a Starless Dark Matter Halo?

The Astrophysical Journal, 956, 1, (2023).

Authors: Benitez-Llambay, Alejandro; Navarro, Julio F.
Year: 2023
Link: ArXiv (HTML) / ArXiv (PDF) / Publisher (HTML) / Publisher (PDF) /

A thermal-kinetic subgrid model for supernova feedback in simulations of galaxy formation

Monthly Notices of the Royal Astronomical Society, 523, 3709, (2023).

Authors: Chaikin, Evgenii Schaye, Joop Schaller, Matthieu Benítez-Llambay, Alejandro; Nobels, Folkert S. J. Ploeckinger, Sylvia
Year: 2023
Link: ArXiv (HTML) / ArXiv (PDF) / Publisher (HTML) / Publisher (PDF) /

VizieR Online Data Catalog: Dwarf galaxy rotational velocities (Santos-Santos+, 2020)

VizieR Online Data Catalog, 749, J/MNRAS/495/58, (2023).

Authors: Santos-Santos, I. M. E. Navarro, J. F. Robertson, A. Benitez-Llambay, A.; Oman, K. A. Lovell, M. R. Frenk, C. S. Ludlow, A. D. Fattahi, A. Ritz, A.
Year: 2023
Link:

The diversity of rotation curves of simulated galaxies with cusps and cores

Monthly Notices of the Royal Astronomical Society, 521, 1316, (2023).

Authors: Roper, Finn A. Oman, Kyle A. Frenk, Carlos S. Benítez-Llambay, Alejandro; Navarro, Julio F. Santos-Santos, Isabel M. E.
Year: 2023
Link: ArXiv (HTML) / ArXiv (PDF) / Publisher (HTML) / Publisher (PDF) /

The cosmic UV background and the beginning and end of star formation in simulated field dwarf galaxies

Monthly Notices of the Royal Astronomical Society, 519, 1425, (2023).

Authors: Pereira-Wilson, Matthew Navarro, Julio F. Benítez-Llambay, Alejandro; Santos-Santos, Isabel
Year: 2023
Link: ArXiv (HTML) / ArXiv (PDF) / Publisher (HTML) / Publisher (PDF) /

The present-day gas content of simulated field dwarf galaxies

Monthly Notices of the Royal Astronomical Society, 518, 6305, (2023).

Authors: Herzog, Georg Benítez-Llambay, Alejandro; Fumagalli, Michele
Year: 2023
Link: ArXiv (HTML) / ArXiv (PDF) / Publisher (HTML) / Publisher (PDF) /

Simulations of the reionization of the clumpy intergalactic medium with a novel particle-based two-moment radiative transfer scheme

The Predictive Power of Computational Astrophysics as a Discover Tool, 362, 15, (2023).

Authors: Chan, Tsang Keung Benitez-Llambay, Alejandro; Theuns, Tom Frenk, Carlos
Year: 2023
Link: Publisher (HTML) / Publisher (PDF) /

Galactic satellite systems in CDM, WDM and SIDM

Monthly Notices of the Royal Astronomical Society, 517, 5627, (2022).

Authors: Forouhar Moreno, Victor J. Benítez-Llambay, Alejandro; Cole, Shaun Frenk, Carlos
Year: 2022
Link: ArXiv (HTML) / ArXiv (PDF) / Publisher (HTML) / Publisher (PDF) /

Constraining the nature of dark matter using the satellite system of the Milky Way: CDM, WDM or SIDM?

EAS2022, European Astronomical Society Annual Meeting, 996, (2022).

Authors: Forouhar Moreno, Victor Frenk, Carlos Cole, Shaun Benitez-Llambay, Alejandro;
Year: 2022
Link:

The diverse 'observed' rotation curves of simulated galaxies with cusps and cores

EAS2022, European Astronomical Society Annual Meeting, 915, (2022).

Authors: Roper, Finn Oman, Kyle Frenk, Carlos Benítez-Llambay, Alejandro; Santos-Santos, Isabel Navarro, Julio
Year: 2022
Link:

Baryon-driven decontraction in Milky Way-mass haloes

Monthly Notices of the Royal Astronomical Society, 511, 3910, (2022).

Authors: Forouhar Moreno, Victor J. Benítez-Llambay, Alejandro; Cole, Shaun Frenk, Carlos
Year: 2022
Link: ArXiv (HTML) / ArXiv (PDF) / Publisher (HTML) / Publisher (PDF) /

The Tail of Late-forming Dwarf Galaxies in ΛCDM

The Astrophysical Journal, 921, L9, (2021).

Authors: Benitez-Llambay, Alejandro; Fumagalli, Michele
Year: 2021
Link: ArXiv (HTML) / ArXiv (PDF) / Publisher (HTML) / Publisher (PDF) /

The detailed structure and the onset of galaxy formation in low-mass gaseous dark matter haloes

Monthly Notices of the Royal Astronomical Society, 498, 4887, (2020).

Authors: Benitez-Llambay, Alejandro; Frenk, Carlos
Year: 2020
Link: ArXiv (HTML) / ArXiv (PDF) / Publisher (HTML) / Publisher (PDF) /

To β or not to β: can higher order Jeans analysis break the mass-anisotropy degeneracy in simulated dwarfs?

Monthly Notices of the Royal Astronomical Society, 498, 144, (2020).

Authors: Genina, A. Read, J. I. Frenk, C. S. Cole, S. Benítez-Llambay, A.; Ludlow, A. D. Navarro, J. F. Oman, K. A. Robertson, A.
Year: 2020
Link: ArXiv (HTML) / ArXiv (PDF) / Publisher (HTML) / Publisher (PDF) /

Baryonic clues to the puzzling diversity of dwarf galaxy rotation curves

Monthly Notices of the Royal Astronomical Society, 495, 58, (2020).

Authors: Santos-Santos, Isabel M. E. Navarro, Julio F. Robertson, Andrew Benítez-Llambay, Alejandro; Oman, Kyle A. Lovell, Mark R. Frenk, Carlos S. Ludlow, Aaron D. Fattahi, Azadeh Ritz, Adam
Year: 2020
Link: ArXiv (HTML) / ArXiv (PDF) / Publisher (HTML) / Publisher (PDF) /

The milky way total mass profile as inferred from Gaia DR2

Monthly Notices of the Royal Astronomical Society, 494, 4291, (2020).

Authors: Cautun, Marius Benítez-Llambay, Alejandro; Deason, Alis J. Frenk, Carlos S. Fattahi, Azadeh Gómez, Facundo A. Grand, Robert J. J. Oman, Kyle A. Navarro, Julio F. Simpson, Christine M.
Year: 2020
Link: ArXiv (HTML) / ArXiv (PDF) / Publisher (HTML) / Publisher (PDF) /

Cusp or core? Revisiting the globular cluster timing problem in Fornax

Monthly Notices of the Royal Astronomical Society, 491, 3336, (2020).

Authors: Meadows, Noah Navarro, Julio F. Santos-Santos, Isabel Benítez-Llambay, Alejandro; Frenk, Carlos
Year: 2020
Link: ArXiv (HTML) / ArXiv (PDF) / Publisher (HTML) / Publisher (PDF) /

The distinct stellar metallicity populations of simulated Local Group dwarfs

Monthly Notices of the Royal Astronomical Society, 488, 2312, (2019).

Authors: Genina, Anna Frenk, Carlos S. Benítez-Llambay, Alejandro; Cole, Shaun Navarro, Julio F. Oman, Kyle A. Fattahi, Azadeh
Year: 2019
Link: ArXiv (HTML) / ArXiv (PDF) / Publisher (HTML) / Publisher (PDF) /

Baryon-induced dark matter cores in the EAGLE simulations

Monthly Notices of the Royal Astronomical Society, 488, 2387, (2019).

Authors: Benítez-Llambay, Alejandro; Frenk, Carlos S. Ludlow, Aaron D. Navarro, Julio F.
Year: 2019
Link: ArXiv (HTML) / ArXiv (PDF) / Publisher (HTML) / Publisher (PDF) /

Fluorescent rings in star-free dark matter haloes

Monthly Notices of the Royal Astronomical Society, 487, 609, (2019).

Authors: Sykes, Calvin Fumagalli, Michele Cooke, Ryan Theuns, Tom Benítez-Llambay, Alejandro;
Year: 2019
Link: ArXiv (HTML) / ArXiv (PDF) / Publisher (HTML) / Publisher (PDF) /

Non-circular motions and the diversity of dwarf galaxy rotation curves

Monthly Notices of the Royal Astronomical Society, 482, 821, (2019).

Authors: Oman, Kyle A. Marasco, Antonino Navarro, Julio F. Frenk, Carlos S. Schaye, Joop Benítez-Llambay, Alejandro;
Year: 2019
Link: ArXiv (HTML) / ArXiv (PDF) / Publisher (HTML) / Publisher (PDF) /

The innate origin of radial and vertical gradients in a simulated galaxy disc

Monthly Notices of the Royal Astronomical Society, 476, 3648, (2018).

Authors: Navarro, Julio F. Yozin, Cameron Loewen, Nic Benítez-Llambay, Alejandro; Fattahi, Azadeh Frenk, Carlos S. Oman, Kyle A. Schaye, Joop Theuns, Tom
Year: 2018
Link: ArXiv (HTML) / ArXiv (PDF) / Publisher (HTML) / Publisher (PDF) /

The core-cusp problem: a matter of perspective

Monthly Notices of the Royal Astronomical Society, 474, 1398, (2018).

Authors: Genina, Anna Benítez-Llambay, Alejandro; Frenk, Carlos S. Cole, Shaun Fattahi, Azadeh Navarro, Julio F. Oman, Kyle A. Sawala, Till Theuns, Tom
Year: 2018
Link: ArXiv (HTML) / ArXiv (PDF) / Publisher (HTML) / Publisher (PDF) /

HBT+: an improved code for finding subhaloes and building merger trees in cosmological simulations

Monthly Notices of the Royal Astronomical Society, 474, 604, (2018).

Authors: Han, Jiaxin Cole, Shaun Frenk, Carlos S. Benitez-Llambay, Alejandro; Helly, John
Year: 2018
Link: ArXiv (HTML) / ArXiv (PDF) / Publisher (HTML) / Publisher (PDF) /

The vertical structure of gaseous galaxy discs in cold dark matter haloes

Monthly Notices of the Royal Astronomical Society, 473, 1019, (2018).

Authors: Benítez-Llambay, Alejandro; Navarro, Julio F. Frenk, Carlos S. Ludlow, Aaron D.
Year: 2018
Link: ArXiv (HTML) / ArXiv (PDF) / Publisher (HTML) / Publisher (PDF) /

Py-SPHViewer: Cosmological simulations using Smoothed Particle Hydrodynamics

Astrophysics Source Code Library, ascl:1712.003, (2017).

Authors: Benítez-Llambay, Alejandro;
Year: 2017
Link: Publisher (HTML) /

The origin of the mass discrepancy-acceleration relation in ΛCDM

Monthly Notices of the Royal Astronomical Society, 471, 1841, (2017).

Authors: Navarro, Julio F. Benítez-Llambay, Alejandro; Fattahi, Azadeh Frenk, Carlos S. Ludlow, Aaron D. Oman, Kyle A. Schaller, Matthieu Theuns, Tom
Year: 2017
Link: ArXiv (HTML) / ArXiv (PDF) / Publisher (HTML) / Publisher (PDF) /

Mass-Discrepancy Acceleration Relation: A Natural Outcome of Galaxy Formation in Cold Dark Matter Halos

Physical Review Letters, 118, 161103, (2017).

Authors: Ludlow, Aaron D. Benítez-Llambay, Alejandro; Schaller, Matthieu Theuns, Tom Frenk, Carlos S. Bower, Richard Schaye, Joop Crain, Robert A. Navarro, Julio F. Fattahi, Azadeh Oman, Kyle A.
Year: 2017
Link: ArXiv (HTML) / ArXiv (PDF) / Publisher (HTML) /

The properties of `dark' ΛCDM haloes in the Local Group

Monthly Notices of the Royal Astronomical Society, 465, 3913, (2017).

Authors: Benítez-Llambay, Alejandro; Navarro, Julio F. Frenk, Carlos S. Sawala, Till Oman, Kyle Fattahi, Azadeh Schaller, Matthieu Schaye, Joop Crain, Robert A. Theuns, Tom
Year: 2017
Link: ArXiv (HTML) / ArXiv (PDF) / Publisher (HTML) / Publisher (PDF) /

Mergers and the outside-in formation of dwarf spheroidals

Monthly Notices of the Royal Astronomical Society, 456, 1185, (2016).

Authors: Benítez-Llambay, A.; Navarro, J. F. Abadi, M. G. Gottlöber, S. Yepes, G. Hoffman, Y. Steinmetz, M.
Year: 2016
Link: ArXiv (HTML) / ArXiv (PDF) / Publisher (HTML) / Publisher (PDF) /

py-sphviewer: Py-SPHViewer v1.0.0

Zenodo, , (2015).

Authors: Benitez-Llambay, Alejandro;
Year: 2015
Link: Publisher (HTML) /

The imprint of reionization on the star formation histories of dwarf galaxies

Monthly Notices of the Royal Astronomical Society, 450, 4207, (2015).

Authors: Benítez-Llambay, A.; Navarro, J. F. Abadi, M. G. Gottlöber, S. Yepes, G. Hoffman, Y. Steinmetz, M.
Year: 2015
Link: ArXiv (HTML) / ArXiv (PDF) / Publisher (HTML) / Publisher (PDF) /

Historia del contenido bariónico de las galaxias EnanasHistoria del contenido bariónico de las galaxias EnanasThe baryon content history of dwarf galaxies;

Ph.D. Thesis, , (2015).

Authors: Benitez Llambay, Alejandro;
Year: 2015
Link: