Sergio Martin Alvarez

All Publications

• The Pandora project - II. How non-thermal physics drives bursty star formation and temperate mass-loaded outflows in dwarf galaxies MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Martin-Alvarez, S., Sijacki, D., Haehnelt, M. G., Concas, A., Yuan, Y., Maiolino, R., Wechsler, R. H., Rodriguez montero, F., Farcy, M., Sanati, M., Dubois, Y., Rosdahl, J., Lopez-Rodriguez, E., Clark, S. E. 2026; 545 (2)

  View details for DOI 10.1093/mnras/staf2106

  View details for Web of Science ID 001639407900001

• Jellyfish Galaxies in Magnetic Fields: Insights from Numerical Simulations ASTROPHYSICAL JOURNAL Lee, J., Kimm, T., Blaizot, J., Devriendt, J., Martin-Alvarez, S., Rhee, J., Rey, M., Slyz, A. 2026; 996 (2)

  View details for DOI 10.3847/1538-4357/ae21c4

  View details for Web of Science ID 001657851500001

• On the rapid growth of SMBHs in high-z galaxies: the aftermath of Population III.1 stars MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Sanati, M., Devriendt, J., Martin-Alvarez, S., Slyz, A., Tan, J. C. 2025; 544 (4): 4317-4335

  View details for DOI 10.1093/mnras/staf2000

  View details for Web of Science ID 001630084200001

• Extended red wings and the visibility of reionization-epoch Lyman-α emitters MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Yuan, Y., Martin-Alvarez, S., Haehnelt, M. G., Garel, T., Keating, L., Witstok, J., Sijacki, D. 2025; 542 (2): 762-789

  View details for DOI 10.1093/mnras/staf1252

  View details for Web of Science ID 001553487100001

• The emergence and ionizing feedback of Pop III.1 stars as progenitors for supermassive black holes MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Sanati, M., Tan, J. C., Devriendt, J., Slyz, A., Martin-Alvarez, S., la Torre, M., Keller, B., Petkova, M. A., Monaco, P., Cammelli, V., Singh, J., Hayes, M. 2025; 542 (2): 1532-1543

  View details for DOI 10.1093/mnras/staf1313

  View details for Web of Science ID 001559620700001

• Constraints on Primordial Magnetic Fields from the Lyman-α Forest. Physical review letters Pavičević, M., Iršič, V., Viel, M., Bolton, J. S., Haehnelt, M. G., Martin-Alvarez, S., Puchwein, E., Ralegankar, P. 2025; 135 (7): 071001

  Abstract

  We present the first constraints on primordial magnetic fields from the Lyman-α forest using full cosmological hydrodynamic simulations. At the scales and redshifts probed by the data, the flux power spectrum is extremely sensitive to the extra power induced by primordial magnetic fields in the linear matter power spectrum, at a scale that we parametrize with k_{peak}. We rely on a set of more than a quarter million flux models obtained by varying thermal and reionization histories and cosmological parameters. We find a hint of extra power that is well fitted by the primordial magnetic field model with B∼0.2  nG, corresponding to k_{peak}∼20  Mpc^{-1}. However, when applying very conservative assumptions on the modeling of the noise, we obtain a 3σ C.L. lower limit k_{peak}>30  Mpc^{-1}, which translates into the tightest bounds on the strength of primordial intergalactic magnetic fields: B<0.30  nG (for a fixed, nearly scale-invariant n_{B}=-2.9).

  View details for DOI 10.1103/77rd-vkpz

  View details for PubMedID 40929213

• Constraints on Primordial Magnetic Fields from the Lyman-α Forest PHYSICAL REVIEW LETTERS Pavi, M., Ir, V., Viel, M., Bolton, J. S., Haehnelt, M. G., Martin-Alvarez, S., Puchwein, E., Ralegankar, P. 2025; 135 (7)

  View details for DOI 10.1103/77rd-vkpz

  View details for Web of Science ID 001561448800008

• PRIMA Vista: far-infrared polarimetry to unveil small-scale magnetohydrodynamics in extragalactic observations JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS Maglione, D., Martin-Alvarez, S., Lopez-Rodriguez, E., Clark, S. E., Karpovich, K. 2025; 11 (3)

  View details for DOI 10.1117/1.JATIS.11.3.031620

  View details for Web of Science ID 001588249400033

• The impact of cosmic ray feedback during the epoch of reionisation ASTRONOMY & ASTROPHYSICS Farcy, M., Rosdahl, J., Dubois, Y., Blaizot, J., Martin-Alvarez, S., Haehnelt, M., Kimm, T., Teyssier, R. 2025; 698

  View details for DOI 10.1051/0004-6361/202553924

  View details for Web of Science ID 001507594300013

• Stirring the cosmic pot: how black hole feedback shapes the matter power spectrum in the <sc>fable</sc> simulations MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Martin-Alvarez, S., Irsic, V., Koudmani, S., Bourne, M. A., Bigwood, L., Sijacki, D. 2025; 539 (2): 1738-1755

  View details for DOI 10.1093/mnras/staf470

  View details for Web of Science ID 001473824000001

• The Fallibility of Equipartition Magnetic Field Strengths from Synchrotron Emission Using Synthetically Observed Galaxies ASTROPHYSICAL JOURNAL Dacunha, T., Martin-Alvarez, S., Clark, S. E., Lopez-Rodriguez, E. 2025; 980 (2)

  View details for DOI 10.3847/1538-4357/adab72

  View details for Web of Science ID 001421905900001

• Increased burstiness at high redshift in multiphysics models combining supernova feedback, radiative transfer, and cosmic rays MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Dome, T., Martin-Alvarez, S., Tacchella, S., Yuan, Y., Sijacki, D. 2025; 537 (2): 629-639

  View details for DOI 10.1093/mnras/staf006

  View details for Web of Science ID 001404858100001

• Dwarf galaxies as a probe of a primordially magnetized Universe ASTRONOMY & ASTROPHYSICS Sanati, M., Martin-Alvarez, S., Schober, J., Revaz, Y., Slyz, A., Devriendt, J. 2024; 690

  View details for DOI 10.1051/0004-6361/202449822

  View details for Web of Science ID 001322237700043

• Lyα emission as a sensitive probe of feedback-regulated LyC escape from dwarf galaxies MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Yuan, Y., Martin-Alvarez, S., Haehnelt, M. G., Garel, T., Sijacki, D. 2024; 532 (4): 3643-3668

  View details for DOI 10.1093/mnras/stae1606

  View details for Web of Science ID 001281876300002

• The impact of cosmic rays on the interstellar medium and galactic outflows of Milky Way analogues MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Montero, F., Martin-Alvarez, S., Slyz, A., Devriendt, J., Dubois, Y., Sijacki, D. 2024; 530 (4): 3617-3640

  View details for DOI 10.1093/mnras/stae1083

  View details for Web of Science ID 001214350900009

• Extragalactic Magnetism with SOFIA (SALSA Legacy Program). VII. A Tomographic View of Far-infrared and Radio Polarimetric Observations through MHD Simulations of Galaxies ASTROPHYSICAL JOURNAL Martin-Alvarez, S., Lopez-Rodriguez, E., Dacunha, T., Clark, S. E., Borlaff, A. S., Beck, R., Montero, F., Jung, S. L., Devriendt, J., Slyz, A., Roman-Duval, J., Ntormousi, E., Tahani, M., Subramanian, K., Dale, D. A., Marcum, P. M., Tassis, K., del Moral-Castro, I., Tram, L., Jarvis, M. J. 2024; 966 (1)

  View details for DOI 10.3847/1538-4357/ad2e9e

  View details for Web of Science ID 001208075400001

• Deciphering Lyman-α emission deep into the epoch of reionization (Jan, 10.1038/s41550-023-02179-3, 2024) NATURE ASTRONOMY Witten, C., Laporte, N., Martin-Alvarez, S., Sijacki, D., Yuan, Y., Haehnelt, M. G., Baker, W. M., Dunlop, J. S., Ellis, R. S., Grogin, N. A., Illingworth, G., Katz, H., Koekemoer, A. M., Magee, D., Maiolino, R., McClymont, W., Perez-Gonzalez, P. G., Puskas, D., Roberts-Borsani, G., Santini, P., Simmonds, C. 2024

  View details for DOI 10.1038/s41550-024-02210-1

  View details for Web of Science ID 001155816800001

• Deciphering Lyman-α emission deep into the epoch of reionization NATURE ASTRONOMY Witten, C., Laporte, N., Martin-Alvarez, S., Sijacki, D., Yuan, Y., Haehnelt, M. G., Baker, W. M., Dunlop, J. S., Ellis, R. S., Grogin, N. A., Illingworth, G., Katz, H., Koekemoer, A. M., Magee, D., Maiolino, R., Mcclymont, W., Perez-Gonzalez, P. G., Puskas, D., Roberts-Borsani, G., Santini, P., Simmonds, C. 2024

  View details for DOI 10.1038/s41550-023-02179-3

  View details for Web of Science ID 001145365800002

• The Pandora project - I. The impact of radiation, magnetic fields, and cosmic rays on the baryonic and dark matter properties of dwarf galaxies MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Martin-Alvarez, S., Sijacki, D., Haehnelt, M. G., Farcy, M., Dubois, Y., Belokurov, V., Rosdahl, J., Lopez-Rodriguez, E. 2023; 525 (3): 3806-3830

  View details for DOI 10.1093/mnras/stad2559

  View details for Web of Science ID 001144520100034

• Extragalactic Magnetism with SOFIA (SALSA Legacy Program). V. First Results on the Magnetic Field Orientation of Galaxies ASTROPHYSICAL JOURNAL Borlaff, A. S. S., Lopez-Rodriguez, E., Beck, R., Clark, S. E. E., Ntormousi, E., Tassis, K., Martin-Alvarez, S., Tahani, M., Dale, D. A. A., del Moral-Castro, I., Roman-Duval, J., Marcum, P. M. M., Beckman, J. E. E., Subramanian, K., Eftekharzadeh, S., Proudfit, L. 2023; 952 (1)

  View details for DOI 10.3847/1538-4357/acd934

  View details for Web of Science ID 001029786000001

• Extragalactic Magnetism with SOFIA (SALSA Legacy Program): The Magnetic Fields in the Multiphase Interstellar Medium of the Antennae Galaxies* ASTROPHYSICAL JOURNAL LETTERS Lopez-Rodriguez, E., Borlaff, A. S., Beck, R., Reach, W. T., Mao, S., Ntormousi, E., Tassis, K., Martin-Alvarez, S., Clark, S. E., Dale, D. A., del Moral-Castro, I. 2023; 942 (1)

  View details for DOI 10.3847/2041-8213/acaaa2

  View details for Web of Science ID 000906861000001

• Extragalactic Magnetism with SOFIA (SALSA Legacy Program). III. First Data Release and On-the-fly Polarization Mapping Characterization* ASTROPHYSICAL JOURNAL Lopez-Rodriguez, E., Clarke, M., Shenoy, S., Vacca, W., Coude, S., Arneson, R., Ashton, P., Eftekharzadeh, S., Beck, R., Beckman, J. E., Borlaff, A. S., Clark, S. E., Dale, D. A., Martin-Alvarez, S., Ntormousi, E., Reach, W. T., Roman-Duval, J., Tassis, K., Harper, D. A., Marcum, P. M. 2022; 936 (1)

  View details for DOI 10.3847/1538-4357/ac83ac

  View details for Web of Science ID 000847883800001

• Extragalactic Magnetism with SOFIA (SALSA Legacy Program). IV. Program Overview and First Results on the Polarization Fraction* ASTROPHYSICAL JOURNAL Lopez-Rodriguez, E., Mao, S., Beck, R., Borlaff, A. S., Ntormousi, E., Tassis, K., Dale, D. A., Roman-Duval, J., Subramanian, K., Martin-Alvarez, S., Marcum, P. M., Clark, S. E., Reach, W. T., Harper, D. A., Zweibel, E. G. 2022; 936 (1)

  View details for DOI 10.3847/1538-4357/ac7f9d

  View details for Web of Science ID 000850192400001

• LyC escape from sphinx galaxies in the Epoch of Reionization MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Rosdahl, J., Blaizot, J., Katz, H., Kimm, T., Garel, T., Haehnelt, M., Keating, L. C., Martin-Alvarez, S., Michel-Dansac, L., Ocvirk, P. 2022; 515 (2): 2386-2414

  View details for DOI 10.1093/mnras/stac1942

  View details for Web of Science ID 000834368400008

• Radiation-magnetohydrodynamics simulations of cosmic ray feedback in disc galaxies MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Farcy, M., Rosdahl, J., Dubois, Y., Blaizot, J., Martin-Alvarez, S. 2022; 513 (4): 5000-5019

  View details for DOI 10.1093/mnras/stac1196

  View details for Web of Science ID 000799969700002

• Towards convergence of turbulent dynamo amplification in cosmological simulations of galaxies MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Martin-Alvarez, S., Devriendt, J., Slyz, A., Sijacki, D., Richardson, M. L. A., Katz, H. 2022; 513 (3): 3326-3344

  View details for DOI 10.1093/mnras/stac1099

  View details for Web of Science ID 000793419500007

• Momentum deposition of supernovae with cosmic rays MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Montero, F., Martin-Alvarez, S., Sijacki, D., Slyz, A., Devriendt, J., Dubois, Y. 2022; 511 (1): 1247-1264

  View details for DOI 10.1093/mnras/stab3716

  View details for Web of Science ID 000770034000003

• The nature of high [O III](88) (mu) (m)/[C II](158) (mu m) galaxies in the epoch of reionization: Low carbon abundance and a top-heavy IMF? MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Katz, H., Rosdahl, J., Kimm, T., Garel, T., Blaizot, J., Haehnelt, M. G., Michel-Dansac, L., Martin-Alvarez, S., Devriendt, J., Slyz, A., Teyssier, R., Ocvirk, P., Laporte, N., Ellis, R. 2022; 510 (4): 5603-5622

  View details for DOI 10.1093/mnras/stac028

  View details for Web of Science ID 000764893100009

• Introducing SPHINX-MHD: the impact of primordial magnetic fields on the first galaxies, reionization, and the global 21-cm signal MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Katz, H., Martin-Alvarez, S., Rosdahl, J., Kimm, T., Blaizot, J., Haehnelt, M. G., Michel-Dansac, L., Garel, T., Onorbe, J., Devriendt, J., Slyz, A., Attia, O., Teyssier, R. 2021; 507 (1): 1254-1282

  View details for DOI 10.1093/mnras/stab2148

  View details for Web of Science ID 000696261000094

• Unravelling the origin of magnetic fields in galaxies MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Martin-Alvarez, S., Katz, H., Sijacki, D., Devriendt, J., Slyz, A. 2021; 504 (2): 2517-2534

  View details for DOI 10.1093/mnras/stab968

  View details for Web of Science ID 000659453800067

• Cosmological magnetogenesis: the Biermann battery during the Epoch of reionization MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Attia, O., Teyssier, R., Katz, H., Kimm, T., Martin-Alvarez, S., Ocvirk, P., Rosdahl, J. 2021; 504 (2): 2346-2359

  View details for DOI 10.1093/mnras/stab1030

  View details for Web of Science ID 000659453800054

• How primordial magnetic fields shrink galaxies MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Martin-Alvarez, S., Slyz, A., Devriendt, J., Gomez-Guijarro, C. 2020; 495 (4): 4475-4495

  View details for DOI 10.1093/mnras/staa1438

  View details for Web of Science ID 000546679500075

• Compact Star-forming Galaxies as Old Starbursts Becoming Quiescent ASTROPHYSICAL JOURNAL Gomez-Guijarro, C., Magdis, G. E., Valentino, F., Toft, S., Man, A. S., Ivison, R. J., Tisanic, K., van der Vlugt, D., Stockmann, M., Martin-Alvarez, S., Brammer, G. 2019; 886 (2)

  View details for DOI 10.3847/1538-4357/ab418b

  View details for Web of Science ID 000499385100001

• Magnetogenesis at Cosmic Dawn: tracing the origins of cosmic magnetic fields MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Katz, H., Martin-Alvarez, S., Devriendt, J., Slyz, A., Kimm, T. 2019; 484 (2): 2620-2631

  View details for DOI 10.1093/mnras/stz055

  View details for Web of Science ID 000462302600084

• A three-phase amplification of the cosmic magnetic field in galaxies MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Martin-Alvarez, S., Devriendt, J., Slyz, A., Teyssier, R. 2018; 479 (3): 3343-3365

  View details for DOI 10.1093/mnras/sty1623

  View details for Web of Science ID 000441382300036

• On the interplay between cosmological shock waves and their environment ASTROPHYSICS AND SPACE SCIENCE Martin-Alvarez, S., Planelles, S., Quilis, V. 2017; 362 (5)

  View details for DOI 10.1007/s10509-017-3066-3

  View details for Web of Science ID 000401259600001