Publicaciones

  • Origin of stellar prolate rotation in a cosmologically simulated faint dwarf galaxy

    Stellar prolate rotation in dwarf galaxies is rather uncommon, with only two known galaxies in the Local Group showing such feature (Phoenix and And II). Cosmological simulations show that in massive early-type galaxies prolate rotation likely arises from major mergers. However, the origin of such kinematics in the dwarf galaxies regime has only

    Cardona-Barrero, Salvador et al.

    Fecha de publicación:

    7
    2021
  • The size function of massive satellites from the R<SUB>e</SUB>-R<SUB>h</SUB> and M<SUB>star</SUB>-M<SUB>h</SUB> relations: constraining the role of environment

    In previous work, we showed that a semi-empirical model in which galaxies in host dark matter haloes are assigned stellar masses via a stellar mass-halo mass (SMHM) relation and sizes (Re) via a linear and tight Re-Rh relation can faithfully reproduce the size function of local Sloan Digital Sky Survey (SDSS) central galaxies and the strong size

    Zanisi, L. et al.

    Fecha de publicación:

    7
    2021
  • Assessing tension metrics with dark energy survey and Planck data

    Quantifying tensions - inconsistencies amongst measurements of cosmological parameters by different experiments - has emerged as a crucial part of modern cosmological data analysis. Statistically significant tensions between two experiments or cosmological probes may indicate new physics extending beyond the standard cosmological model and need to

    Lemos, P. et al.

    Fecha de publicación:

    8
    2021
  • Internal rotation of Milky Way dwarf spheroidal satellites with Gaia Early Data Release 3

    We present an analysis of the kinematics of 14 satellites of the Milky Way (MW). We use proper motions (PMs) from the Gaia Early Data Release 3 (EDR3) and line-of-sight velocities (vlos) available in the literature to derive the systemic 3D motion of these systems. For six of them, namely the Carina, Draco, Fornax, Sculptor, Sextans, and Ursa Minor

    Martínez-García, Alberto Manuel et al.

    Fecha de publicación:

    8
    2021