The Milky Way and the Local Group (MWLG)
  • Publication
    Ongoing star formation at the outskirts of Sextans A: spectroscopic detection of early O-type stars
    With both nebular- and stellar-derived abundances of ≲1/10 Z_{⊙ } and low foreground extinction, Sextans A is a prime candidate to replace the Small Magellanic...
  • Publication
    Open Cluster Chemical Homogeneity throughout the Milky Way
    The chemical homogeneity of surviving stellar clusters contains important clues about interstellar medium (ISM) mixing efficiency, star formation, and the...
  • Publication
    Optical identification of the binary companion to the millisecond PSR J2302+4442 with the Gran Telescopio Canarias
    We report detection of the binary companion to the millisecond pulsar J2302+4442 based on the deep observations performed with the Gran Telescopio Canarias. The...
  • Publication
    Optical Observations of Psr J2021+3651 in the Dragonfly Nebula With the GTC
    PSR J2021+3651 is a 17 kyr old rotation powered pulsar detected in the radio, X-rays, and γ-rays. It powers a torus-like pulsar wind nebula with jets, dubbed...
  • Publication
    Optical Study of the Hyper-luminous X-Ray Source 2XMM J011942.7+032421
    We present the identification and characterization of the optical counterpart to 2XMM J011942.7+032421, one of the most luminous and distant ultra-luminous X...
  • Publication
    Optical validation and characterization of Planck PSZ2 sources at the Canary Islands observatories. I. First year of LP15 observations
    Aims: The second catalogue of Planck Sunyaev-Zeldovich (SZ) sources, hereafter PSZ2, is the largest sample of galaxy clusters selected through their SZ...
  • Publication
    Orbital Torus Imaging: Using Element Abundances to Map Orbits and Mass in the Milky Way
    Many approaches to galaxy dynamics assume that the gravitational potential is simple and the distribution function is time invariant. Under these assumptions...
  • News
    Origin of stellar prolate rotation in a cosmologically simulated faint dwarf
    In the current cosmological model, galaxies are formed in a hierarchical way, by merging with each other. These mergers can lead to kinematic anomalies that can...
  • Publication
    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)...