STRAT 3 - Galactic structure and dynamics
 

 

Publications

  • "New constraints on the central mass contents of Omega Centauri from combined stellar kinematics and pulsar timing", A. Bañares-Hernández (IAC, ULL), Francesca Calore (LAPTh), J. Martin Camalich (IAC, La Laguna and Laguna U., Tenerife and CERN), J. I. Read (Surrey U.).
    Astronomy and Astrophysics (A&A) 685 (2024) C4
    arXiv:  2408.00939 [astro-ph.GA]
     
  • "LIGHTS. A robust technique to identify galaxy edges", G. Golini (IAC, ULL), I. Trujillo (IAC, ULL), D. Zaritsky (University of Arizona), M. Montes (ICE-CSIC), R. Infante-Sainz (CEFCA), G. Martin (University of Nottingham), N. Chamba (NASA Ames), I. Ruiz Cejudo (IAC, ULL), A. Asensio Ramos (IAC, ULL), C.-Y. Chuang (ICE-CSIC), M. D’Onofrio (University of Padova), S. Eskandarlou (CEFCA), S. Z. Hosseini-ShahiSavandi (University of Padova), O. Kaboud (University of Padova), C. Marrero de la Rosa (IAC, ULL), M. N. Le (IAC, ULL), S. Raji (University of Valladolid), J. Román (Universidad Complutense de Madrid), N. Sedighi (IAC, ULL), Z. Sharbaf (IAC, ULL), R. Donnerstein (University of Arizona), S. Guerra Arencibia (IAC, ULL)
    Astronomy and Astrophysics (A&A) 700, A91 (2025)
    arXiv:  2507.01085 [astro-ph.GA]  

  • "Ultra-Light Dark Matter Simulations and Stellar Dynamics: Tension in Dwarf Galaxies for m < 5 × 10-21 eV ", L. Teodori (WIS), A. Caputo (CERN), K. Blum (WIS)
    Physical Review D (Phys. Rev. D) 113, 023055
    arXiv:  2501.07631 [astro-ph.GA]  
     
  • "NASIM: Revealing the low surface brightness Universe from legacy VISTA data", E. Saremi (Instituto de Astrofísica de Canarias; Department of Astrophysics, Universidad de La Laguna; School of Physics & Astronomy, University of Southampton), I. Trujillo (Instituto de Astrofísica de Canarias; Department of Astrophysics, Universidad de La Laguna), M. Akhlaghi (Centro de Estudios de Física del Cosmos de Aragón, CEFCA, CSIC), Z. Ghaffari (INAF-Osservatorio Astronomico di Trieste; IFPU, Institute for Fundamental Physics of the Universe), J. H. Knapen (Instituto de Astrofísica de Canarias; Department of Astrophysics, Universidad de La Laguna), M. Banerji (School of Physics & Astronomy, University of Southampton), H. Dannerbauer (Instituto de Astrofísica de Canarias; Department of Astrophysics, Universidad de La Laguna), S. Comerón (Department of Astrophysics, Universidad de La Laguna; Instituto de Astrofísica de Canarias).
    A&A, 701, A116 (2025)
    arXiv:  2508.02780 [astro-ph.IM]
     
  • "Quasar Milli-lensing and Cold Dark Matter (TNG50) Subhaloes. I. Image Splitting", E. Mediavilla (IAC, ULL), J. Jiménez-Vicente (UGR, IC1), F. M. Heinze (Friedrich-Schiller-Universität Jena, Theoretisch-Physikalisches Institut), J. Martin Camalich (IAC, La Laguna and Laguna U., Tenerife and CERN).
    The Astrophysical Journal, Volume 984, Issue 2, id.145, 15 pp
    arXiv:      10.3847/1538-4357/adc724
     
  • "Bracketing the soliton-halo relation of ultralight dark matter", K. Blum (WIS), M. Gorghetto (DESY), E. Hardy (University of Oxford), L. Teodori (WIS)
    Journal of Cosmology and Astroparticle Physics, Volume 2025, Issue 06, id.050, 33 pp.
    arXiv:  2504.16202 [astro-ph.CO]
     
  • "LIGHTS. The extended point spread functions of the LIGHTS survey at the LBT", N. Sedighi (IAC, ULL), Z. Sharbaf (IAC, ULL), I. Trujillo (IAC, ULL), S. Eskandarlou (CEFCA), G. Golini (IAC, ULL), R. Infante-Sainz (CEFCA), S. Raji (University of Valladolid), D. Zaritsky (University of Arizona), P. A. Ardakani (IPM), N. Chamba (NASA Ames), S. Z. Hosseini-ShahiSavandi (University of Padova), R. Donnerstein (University of Arizona), M. D’Onofrio (University of Padova), G. Martin (University of Nottingham), M. Montes (ICE-CSIC), J. Román (Universidad Complutense de Madrid) 
    The Open Journal of Astrophysics, vol. 8, id. 73
    arXiv:  2410.20190 [astro-ph.GA]
     
  • "Chemo-dynamics of the stellar component of the Sculptor dwarf galaxy: II. Dynamical properties and dark matter halo density", J. M. Arroyo-Polonio (Instituto de Astrofísica de Canarias; Universidad de La Laguna), R. Pascale (INAF – Osservatorio di Astrofisica e Scienza dello Spazio di Bologna), G. Battaglia (Instituto de Astrofísica de Canarias; Universidad de La Laguna), G. F. Thomas (Instituto de Astrofísica de Canarias; Universidad de La Laguna), C. Nipoti (Dipartimento di Fisica e Astronomia “Augusto Righi” – DIFA, Alma Mater Studiorum – Università di Bologna), E. Vasiliev (University of Surrey), E. Tolstoy (Kapteyn Astronomical Institute, University of Groningen).
    A&A, 699, A347 (2025)
    arXiv:  2506.11845 [astro-ph.GA]
     
  • "Fuzzy dark matter fails to explain the dark matter cores", M. Benito (Tartu Observatory, University of Tartu), G. Hütsi (Keemilise ja Bioloogilise Füüsika Instituut), K. Müürsepp (Keemilise ja Bioloogilise Füüsika Instituut, INFN - Laboratori Nazionali di Frascati), J. Sánchez-Almeida (Instituto de Astrofísica de Canarias, Universidad de La Laguna), J. Urrutia (Keemilise ja Bioloogilise Füüsika Instituut, Tallinn University of Technology), V. Vaskonen (Keemilise ja Bioloogilise Füüsika Instituut, Università degli Studi di Padova, INFN - Sezione di Padova), H. Veermäe (Keemilise ja Bioloogilise Füüsika Instituut)
    Physics of the Dark Universe, Volume 49, September 2025, 102010
    arXiv:  2502.12030 [astro-ph.CO]  
     
  • "The slow evolution of dark matter halos from cusp to core naturally produces extended stellar core-like distributions", J. Sánchez-Almeida (Instituto de Astrofísica de Canarias; Universidad de La Laguna), A. R. Plastino (CeBio and Department of Basic Sciences, Universidad Nacional del Noroeste de la Provincia de Buenos Aires, UNNOBA, CONICET), I. Trujillo (Instituto de Astrofísica de Canarias; Universidad de La Laguna)
    A&A, 702, A113 (2025)
    arXiv:  2509.03167 [astro-ph.GA]
     
  • "Deep imaging of the galaxy Malin 2 shows new faint structures and a candidate satellite dwarf galaxy", Junais (Instituto de Astrofísica de Canarias; Departamento de Astrofísica, Universidad de La Laguna), I. Ruiz Cejudo (Instituto de Astrofísica de Canarias; Departamento de Astrofísica, Universidad de La Laguna), S. Guerra Arencibia (Instituto de Astrofísica de Canarias; Departamento de Astrofísica, Universidad de La Laguna), I. Trujillo (Instituto de Astrofísica de Canarias; Departamento de Astrofísica, Universidad de La Laguna), M. R. Alarcón (Instituto de Astrofísica de Canarias; Departamento de Astrofísica, Universidad de La Laguna), M. Serra-Ricart (Instituto de Astrofísica de Canarias; Departamento de Astrofísica, Universidad de La Laguna; Light Bridges S.L., Observatorio del Teide), J. H. Knapen (Instituto de Astrofísica de Canarias; Departamento de Astrofísica, Universidad de La Laguna), P.-A. Duc (Université de Strasbourg, CNRS, Observatoire astronomique de Strasbourg)
    A&A, 702, A136 (2025)
    arXiv:  2508.07930 [astro-ph.GA]
     
  • "Constraints on dark matter models from the stellar cores observed in ultra-faint dwarf galaxies: Self-interacting dark matter". J. Sánchez Almeida (Instituto de Astrofísica de Canarias; Department of Astrophysics, Universidad de La Laguna)
    A&A, 704, A210 (2025)
    arXiv:  2510.05682 [astro-ph.GA]
     
  • "An accurate measure of the size of dark matter halos using the size of galaxies", C. Dalla Vecchia (Instituto de Astrofísica de Canarias; Departamento de Astrofísica, Universidad de La Laguna), I. Trujillo (Instituto de Astrofísica de Canarias; Departamento de Astrofísica, Universidad de La Laguna), et al.
    A&A, 704, A312 (2025)
    arXiv:  2510.19926 [astro-ph.GA]
     
  • "GravSphere2: A higher-order Jeans method for mass-modeling spherical stellar systems", A. Bañares-Hernández (Instituto de Astrofísica de Canarias; Department of Astrophysics, Universidad de La Laguna), J. I. Read (Department of Physics, University of Surrey), M. P. Júlio (Leibniz Institute for Astrophysics Potsdam; Institute of Physics and Astronomy, University of Potsdam).
    A&A, 705, A212 (2026)
    arXiv:  2509.24103 [astro-ph.GA]
     
  • "The mysterious Globular Cluster population of MATLAS-2019", S. Guerra Arencibia (IAC; ULL), M. Montes (IAC; ULL; ICE-CSIC), G. Golini (IAC; ULL), I. Trujillo (IAC; ULL)
    A&A, 706, A163 (2026)
    arXiv:  2512.09990 [astro-ph.GA]

  • "Revisiting the structure of galactic disks with deep imaging", S. Raji (Universidad de Valladolid; LaDIS), I. Trujillo (IAC; ULL), F. Buitrago (Universidad de Valladolid; Instituto de Astrofísica e Ciências do Espaço), G. Golini (IAC; ULL), I. Ruiz Cejudo (IAC; ULL)
    A&A, 704, A335 (2025)
    arXiv:  2510.24900 [astro-ph.GA]
     
  • "Beyond diagnostic-diagrams: A critical exploration on the classification of ionization processes", S. F. Sánchez (Instituto de Astronomía, Universidad Nacional Autónoma de México; Instituto de Astrofísica de Canarias), C. Muñoz-Tuñón (Instituto de Astrofísica de Canarias; Department of Astrophysics, Universidad de La Laguna), J. Sánchez Almeida (Instituto de Astrofísica de Canarias; Department of Astrophysics, Universidad de La Laguna), O. González-Martín (Instituto de Radioastronomía y Astrofísica, UNAM), E. Pérez (Instituto de Radioastronomía y Astrofísica, UNAM).
    A&A, 704, A145 (2025)
    arXiv:  2510.07256 [astro-ph.GA]

  • "Deep imaging of the very isolated dwarf galaxy NGC6789", I. Trujillo (IAC; ULL), S. Guerra Arencibia (IAC; ULL), I. Ruiz Cejudo (IAC; ULL), M. Montes (ICE-CSIC), M. R. Alarcon (IAC; ULL; Light Bridges S.L.), M. Serra-Ricart (IAC; ULL; Light Bridges S.L.)
    Research Notes of the AAS, Volume 9, Number 11
    arXiv:  2511.07041 [astro-ph.GA]

  • "Cored galaxies in cuspy dark matter halos", F. Valenciano (IAC; ULL), J. Martin Camalich (IAC; ULL), A. Di Cintio (ULL), J. F. Navarro (University of Victoria), G. Battaglia (IAC; ULL), R. Errani (Carnegie Mellon University), J. I. Read (University of Surrey)
    Astronomy & Astrophysics, 710, A329 (2026)
    arXiv:  2512.15886 [astro-ph.GA]
     
  • "JWST spectra are consistent with the edge-on star-forming galaxy scenario for the “runaway supermassive black hole”, J. Sanchez-Almeida (IAC; ULL), I. Trujillo (IAC; ULL), S. F. Sánchez (IAC; UNAM), M. Montes (IAC; ICE-CSIC)
    Research Notes of the AAS, Volume 10, Number 2
    arXiv:  2602.10682 [astro-ph.GA]
     
  • "Search for Faint Lone Double-Peaked Hα Lines as IMBH Signatures in the MUSE Deep Field", J. Yadav (IAC; ULL), J. Sánchez Almeida (IAC; ULL), C. Muñoz Tuñon (IAC; ULL), J. Calhau (INAF-OAC)
    The Astronomical Journal, Volume 171, Number 3
    arXiv:  2602.02705 [astro-ph.GA]
     
  • "The approximate gravitational lensing multiple plane mass sheet degeneracy", L. Teodori (IAC; ULL)
    Journal of Cosmology and Astroparticle Physics, 05 (2026) 046
    arXiv:  2602.02802 [astro-ph.GA]
     
  • "Accurate inner stellar density slopes from projected surface densities in galaxies", J. Sánchez Almeida (IAC, ULL)
    The Astrophysical Journal 1004, 249 (2026)
    arXiv: 2606.01956 [astro−ph.GA]
     
  • "Globular Cluster Distributions as a Dynamical Probe of Dark Matter", N. Ben-Yeda (Weizmann Inst.), K. Blum (Weizmann Inst.), I. Havilio (Weizmann Inst., Tel Aviv U.)
    Astrophys. J. 1005(1), 26 (2026)
    arXiv: 2504.02476 [astro-ph.GA]
     
  • "H I-bearing dark galaxy predictions from constrained Local Group simulations: How many and where to find them", G. García-Bethencourt (ULL), A. Di Cintio (ULL, IAC), S. Comerón (ULL, IAC), E. Arjona-Gálvez (IAC, ULL), A. Contreras-Santos (ULL, IAC), S. Cardona-Barrero (ULL, IAC), C. B. A. Brook (ULL, IAC), A. Negri (ULL, U. Sevilla, INAF Bologna), N. I. Libeskind (AIP), A. Knebe (UAM, CIAFF, U. Western Australia)
    Astronomy & Astrophysics 710, A156 (2026)
    arXiv: 2601.04024 [astro-ph.GA]

  • "LIGHTS. The Thin Encircling Stellar Stream of NGC 3938", D. Zaritsky (U. Arizona), J. Nibauer (Princeton U.), G. Golini (UNSW Sydney), I. Ruiz Cejudo (IAC, ULL), I. Trujillo (IAC, ULL), et al.
    The Astrophysical Journal Letters 1000(1), L6 (2026)
    arXiv: 2602.14192 [astro-ph.GA]
     
  • "Not So Isolated: Green Pea Galaxies in Overdense Environments revealed by VLT/MUSE", A. Arroyo-Polonio (INAF-OAR), J. M. Vílchez (IAA-CSIC), J. Iglesias-Páramo (IAA-CSIC, CAHA), C. Kehrig (IAA-CSIC, Observatório Nacional), E. Pérez-Montero (IAA-CSIC), R. Amorín (IAA-CSIC), B. Pérez-Díaz (INAF-OAR), M. Hayes (Stockholm U.), I. Breda (U. Vienna), J. Sánchez Almeida (IAC, ULL), et al.
    Astronomy & Astrophysics 711, A91 (2026)
    arXiv: 2605.03676 [astro-ph.GA]

  • "Witnessing the rapid growth of disk galaxies over cosmic time using JWST and HST", S. Raji (U. Valladolid, LaDIS), M. Montes (ICE-CSIC), I. Trujillo (IAC, ULL), F. Buitrago (U. Valladolid, LaDIS, U. Lisboa), C. Marrero-de la Rosa (IAC, ULL), A. Asensio Ramos (IAC, ULL)
    Astronomy & Astrophysics 711, A46 (2026)
    arXiv: 2605.15327 [astro-ph.GA]

Preprints

  • "Implications of the intriguing constant inner mass surface density observed in dark matter halos", J. Sánchez-Almeida (Instituto de Astrofísica de Canarias, Universidad de La Laguna)
    arXiv:  2501.03761 [astro-ph.GA]

  • "Constraining the shape of dark matter haloes using only starlight II. Tests of the technique with objects of known gravitational potential", J. Sánchez Almeida (IAC, ULL), A. R. Plastino (UNNOBA, CONICET), S. Guerra Arencibia (IAC, ULL), N. Kallivayalil (U. Virginia), J. T. Warfield (U. Virginia)
    arXiv: 2607.27001 [astro-ph.GA]
     
  • "From S2 to LISA: Astrometric Bounds on Extreme-Mass-Ratio Inspirals and Bursts", A. Caputo (CERN, Sapienza U. Rome, INFN Roma1, Weizmann Inst.), V. Domcke (CERN)
    arXiv: 2607.26127 [astro-ph.GA]
     
  • "How large can galaxies be? Ultra-deep imaging of IC 1101, the most extended known galaxy", C. Marrero-de la Rosa (IAC, ULL), I. Trujillo (IAC, ULL), I. Ruiz Cejudo (IAC, ULL), M. Montes (ICE-CSIC), F. Buitrago (U. Valladolid, LaDIS, U. Lisboa), G. Golini (UNSW Sydney), S. Guerra Arencibia (IAC, ULL), A. Asensio Ramos (IAC, ULL), R. Infante-Sainz (CEFCA), A. de Lorenzo-Cáceres (IAC, ULL), J. Méndez-Abreu (IAC, ULL), S. Raji (U. Valladolid), J. Román (U. Córdoba), M. Sánchez-Benavente (IAC, ULL), Z. Sharbaf (ICE-CSIC)
    arXiv: 2607.15340 [astro-ph.GA]
     
  • "Influence of tides and self-gravity on Ultra-Light Dark Matter Bounds from Dwarf Galaxies", A. Caputo (CERN, Sapienza U. Rome, INFN Roma1, Weizmann Inst.), L. Teodori (IAC, ULL)
    arXiv: 2604.01278 [hep-ph]
     
  • "The explosive growth of the Messier 74 galaxy. A galaxy doubling its size in less than a Gigayear", I. Trujillo (IAC, ULL), et al.
    arXiv: 2606.20793 [astro-ph.GA]