Spiral Galaxies: Evolution and Consequences

    General
    Description

    Our small group is well known and respected internationally for our innovative and important work on various aspects of the structure and evolution of nearby spiral galaxies. We primarily use observations at various wavelengths, exploiting synergies that allow us to answer the most pertinent questions relating to what the main properties of galaxies are, and how galaxies have evolved to their current state. We use imaging and spectroscopy, at UV, optical, infrared, millimetre, and radio wavelengths, fully exploiting observing facilities available to us in Spain, at ESO, or elsewhere, along with state-of-the-art analysis tools. The success of this approach can be measured from the employment opportunities offered to ex-members of the group, from the number and quality of collaborations with leading external scientists, from continued citation of our published work, and from invitations to co-organise or speak at the leading international conferences in the field.

    In the last few years our group has put a lot of effort into opening up joint research lines with computer scientists, recognising the paradigm shift that is upon us due to the enormous quantities of data that will soon be produced by facilities such as LSST, Euclid, and SKA. We collaborate with computer scientists and aim to prepare the analysis tools, including detection of structure from noise, correction for scattered light and Galactic cirrus, and the use of machine learning-based techniques, so that once LSST (2020) and Euclid (2023) start releasing their huge data sets, our group is ready to analyse them and extract the science from the oceans of bytes.

    Principal investigator
    Project staff
    1. From thermal and non-thermal radio maps of the centre of NGC 1097, we discovered that the massive star formation is quenched by non-thermal effects, including pressure from the magnetic field, cosmic rays and turbulence.
    2. In the centre of NGC 7742, we found a slightly warped inner disk, and two separate stellar components: an old population that counter-rotates with the gas, and a young one, concentrated to the ring, that co-rotates with the gas.
    3. We re-analysed our deep IR imaging of thick disks to correct for the extended S4G point spread function (PSF), confirming all our previous results and in particular confirming the significant mass present in the thick disk component.
    4. Analysing a new high-resolution e-MERLIN 1.5 GHz radio continuum map together with HST and SDSS imaging of NGC 5322, an elliptical galaxy hosting radio jets, we found that the low-luminosity AGN/jet-driven feedback may have quenched the late-time nuclear star formation promptly.
    5. From MUSE observations of low-surface-brightness Lyman-α emission surrounding faint galaxies at redshifts between 3 and 6 we find that the projected sky coverage approaches 100 per cent.

    Related publications

    WEAVE First Light Observations: Origin and Dynamics of the Shock Front in Stephan's Quintet 2024MNRAS.535.2269A
    CAVITY: Calar Alto Void Integral-field Treasury surveY: I. First public data release 2024A&A...691A.161G
    First Detection of Molecular Gas in the Giant Low Surface Brightness Galaxy Malin 1 2024ApJ...975L..26G
    CLOUDY modeling suggests a diversity of ionization mechanisms for diffuse extraplanar gas 2024A&A...691A..16R
    The CAVITY Project: Spatially-Resolved and Characteristic Properties of Galaxies Derived Using pyPipe3D 2024RMxAA..60..323S
    Gas flows in the central region of the Seyfert galaxy NGC 4593 with MUSE 2024A&A...690A.277M
    Retrieval of the physical parameters of galaxies from WEAVE-StePS-like data using machine learning 2024A&A...690A.198A
    Euclid preparation: XLIII. Measuring detailed galaxy morphologies for Euclid with machine learning 2024A&A...689A.274E
    RMS asymmetry: a robust metric of galaxy shapes in images with varied depth and resolution 2024OJAp....7E..77S
    Gas-phase metallicity for the Seyfert galaxy NGC 7130 2024A&A...689A.193A
    CAVITY, Calar Alto Void Integral-field Treasury surveY and project extension 2024A&A...689A.213P
    Deriving the star formation histories of galaxies from spectra with simulation-based inference 2024A&A...689A..58I
    LeMMINGs. Multiwavelength constraints on the co-existence of nuclear star clusters and AGN in nucleated galaxies 2024MNRAS.532.4729D
    LIGHTS. Survey Overview and a Search for Low Surface Brightness Satellite Galaxies 2024AJ....168...69Z
    The CAVITY project: The spatially resolved stellar population properties of galaxies in voids 2024A&A...687A..98C
    Morphology and Kinematics of the Gas in M51: How Interaction with NGC 5195 Has Molded the Structure of Its Arms 2024ApJ...966..110F
    The wide-field, multiplexed, spectroscopic facility WEAVE: Survey design, overview, and simulated implementation 2024MNRAS.530.2688J
    Ultra-deep imaging of NGC 1052-DF2 and NGC 1052-DF4 to unravel their origins 2024A&A...684A..99G
    Bar properties as a function of wavelength: a local baseline with S<SUP>4</SUP>G for high-redshift studies 2024MNRAS.52711777M
    Radio Jet Feedback on the Inner Disk of Virgo Spiral Galaxy Messier 58 2024ApJ...962..196O
    Detection of an intranight optical hard lag with colour variability in blazar PKS 0735+178 2024MNRAS.528.4702M
    Strategies for optimal sky subtraction in the low surface brightness regime 2024MNRAS.528.4289W
    Preparing for low surface brightness science with the Vera C. Rubin Observatory: a comparison of observable and simulated intracluster light fractions 2024MNRAS.528..771B
    Constraining the top-light initial mass function in the extended ultraviolet disk of M 83 2024A&A...681A..76R
    On the Nature of Disks at High Redshift Seen by JWST/CEERS with Contrastive Learning and Cosmological Simulations 2024ApJ...961...51V
    An almost dark galaxy with the mass of the Small Magellanic Cloud 2024A&A...681A..15M
    The Tully-Fisher relation and the Bosma effect 2024MNRAS.527.2697S
    A giant thin stellar stream in the Coma Galaxy Cluster 2023A&A...679A.157R
    Composite Bulges. III. A Study of Nuclear Star Clusters in Nearby Spiral Galaxies 2023ApJ...958..100A
    The truncation of the disk of NGC 4565. Detected up to z = 4 kpc, with star formation, and affected by the warp 2023A&A...678A..62M
    Stellar metallicity from optical and UV spectral indices: Test case for WEAVE-StePS 2023A&A...677A..93D
    The AMIGA sample of isolated galaxies. XIV. Disc breaks and interactions through ultra-deep optical imaging 2023A&A...677A.117S
    A brief review of contrastive learning applied to astrophysics 2023RASTI...2..441H
    Mapping non-axisymmetric velocity fields of external galaxies 2023MNRAS.524.1560S
    Flares, Warps, Truncations, and Satellite: The Ultra-thin Galaxy UGC 11859 2023ApJ...951..149O
    Extragalactic Magnetism with SOFIA (SALSA Legacy Program). V. First Results on the Magnetic Field Orientation of Galaxies 2023ApJ...952....4B
    The massive relic galaxy NGC 1277 is dark matter deficient. From dynamical models of integral-field stellar kinematics out to five effective radii 2023A&A...675A.143C
    LeMMINGs. V. Nuclear activity and bulge properties: A detailed multi-component decomposition of e-MERLIN Palomar galaxies with HST 2023A&A...675A.105D
    Fully adaptive Bayesian algorithm for data analysis: FABADA 2023RASTI...2..129S
    The Isaac Newton Telescope Monitoring Survey of Local Group Dwarf Galaxies. VI. The Star Formation History and Dust Production in Andromeda IX 2023ApJ...948...63A

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