Publications

  • Dark Energy Survey Year 3 results: Optimizing the lens sample in a combined galaxy clustering and galaxy-galaxy lensing analysis

    We investigate potential gains in cosmological constraints from the combination of galaxy clustering and galaxy-galaxy lensing by optimizing the lens galaxy sample selection using information from Dark Energy Survey (DES) Year 3 data and assuming the DES Year 1 METACALIBRATION sample for the sources. We explore easily reproducible selections based

    Porredon, A. et al.

    Advertised on:

    2
    2021
  • Evolution of galaxy scaling relations in clusters at 0.5 < z < 1.5

    Aims: We present new gas kinematic observations with the OSIRIS instrument at the GTC for galaxies in the Cl1604 cluster system at z ∼ 0.9. These observations together with a collection of other cluster samples at different epochs analyzed by our group are used to study the evolution of the Tully-Fisher, velocity-size, and specific angular momentum

    Pérez-Martínez, J. M. et al.

    Advertised on:

    2
    2021
  • Extended X-Ray Emission around FR II Radio Galaxies: Hot Spots, Lobes, and Galaxy Clusters

    We present a systematic analysis of the extended X-ray emission discovered around 35 FR II radio galaxies from the revised Third Cambridge Catalog (3CR) Chandra Snapshot Survey with redshifts between 0.05 and 0.9. We aimed to (i) test for the presence of extended X-ray emission around FR II radio galaxies, (ii) investigate whether the extended

    Jimenez-Gallardo, A. et al.

    Advertised on:

    2
    2021
  • Galaxies within galaxies in the TIMER survey: stellar populations of inner bars are scaled replicas of main bars

    Inner bars are frequent structures in the local Universe and thought to substantially influence the nuclear regions of disc galaxies. In this study we explore the structure and dynamics of inner bars by deriving maps and radial profiles of their mean stellar population content and comparing them to previous findings in the context of main bars. To

    Bittner, Adrian et al.

    Advertised on:

    2
    2021
  • Lucky spectroscopy, an equivalent technique to lucky imaging. II. Spatially resolved intermediate-resolution blue-violet spectroscopy of 19 close massive binaries using the William Herschel Telescope

    Context. Many massive stars have nearby companions. These hamper a characterization of massive stars through spectroscopy. Aims: We continue to obtain spatially resolved spectroscopy of close massive visual binaries to derive their spectral types. Methods: We used the lucky spectroscopy technique to obtain a large number of short long-slit

    Maíz Apellániz, J. et al.

    Advertised on:

    2
    2021