Astrophysical: Galaxies

  • Publication
    Fundamentals of the dwarf fundamental plane
    Aims: Star-forming dwarfs are studied to elucidate the physical underpinnings of their fundamental plane. Processes controlling dynamics are evaluated...
  • Publication
    Further Evidence for a Supermassive Black Hole Mass-Pitch Angle Relation
    We present new and stronger evidence for a previously reported relationship between galactic spiral arm pitch angle P (a measure of the tightness of spiral...
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    Further evidence for a time-dependent initial mass function in massive early-type galaxies
    Spectroscopic analyses of gravity-sensitive line strengths give growing evidence towards an excess of low-mass stars in massive early-type galaxies (ETGs). Such...
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    g'r'i' and redshift of Abell 2254 galaxies (Girardi+, 2011)
    Multi-object spectroscopic observations of A2254 were carried out at the TNG telescope in May and October 2009 and in March 2010. Our photometric observations...
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    Gaia Data Release 3. The extragalactic content
    The Gaia Galactic survey mission is designed and optimized to obtain astrometry, photometry, and spectroscopy of nearly two billion stars in our Galaxy. Yet as...
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    Gaia DR 2 and VLT/FLAMES search for new satellites of the LMC
    A wealth of tiny galactic systems populates the surroundings of the Milky Way. However, some of these objects might have originated as former satellites of the...
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    Gaia DR2 proper motions of dwarf galaxies within 420 kpc. Orbits, Milky Way mass, tidal influences, planar alignments, and group infall
    A proper understanding of the Milky Way (MW) dwarf galaxies in a cosmological context requires knowledge of their 3D velocities and orbits. However, proper...
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    Gaia early DR3 systemic motions of Local Group dwarf galaxies and orbital properties with a massive Large Magellanic Cloud
    Aims: We perform a comprehensive determination of the systemic proper motions of 74 dwarf galaxies and dwarf galaxy candidates in the Local Group based on Gaia...
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    Galactic angular momentum in the IllustrisTNG simulation - I. Connection to morphology, halo spin, and black hole mass
    We use the TNG100 simulation of the IllustrisTNG project to investigate the stellar specific angular momenta (j *) of ~12 000 central galaxies at z = 0 in a...