Astrophysical: Star formation

  • Publication
    Detection of young (≤20 Myr) stellar populations in apparently quenched low-mass galaxies using red spectral line indices
    We report on the detection of a small contribution (around and below 1 per cent in mass) from young stellar components with ages ≤20 Myr in low-mass galaxies...
  • Publication
    Diagnostic diagrams of H 0 regions in the Local Group
    We have studied here for the first time the use of the log(H 0/[N 0]), log (H 0/[S 0]) diagnostic diagram for determining the metallicities and ionization...
  • Publication
    Diagnostics of the underlying physical differences between flocculent and well-defined spiral galaxies
    From published catalogs, basic physical properties including diameters, masses, and neutral hydrogen contents of spiral galaxies have been studied as a function...
  • Publication
    Differences between CO- and calcium triplet-derived velocity dispersions in spiral galaxies: evidence for central star formation?
    We examine the stellar velocity dispersions (σ) of a sample of 48 galaxies, 35 of which are spirals, from the Palomar nearby galaxy survey. It is known that for...
  • Publication
    Differential attenuation in star-forming galaxies at 0.3 ≲ z ≲ 1.5 in the SHARDS/CANDELS field
    We use a sample of 706 galaxies, selected as [O II]λ3727 ([O II]) emitters in the Survey for High-z Absorption Red and Dead Sources (SHARDS) on the CANDELS...
  • Publication
    Differential efficiency of massive star formation in NGC 628
    The efficiency ratio of massive star formation in the arms of the spiral NGC 628 to that in the interarm region has been determined from the sizes and positions...
  • Publication
    Discovery of a wide planetary-mass companion of a brown dwarf in the Upper Scorpius association
    We present the discovery of a 14-8+2 MJup companion located at 670 AU from UScoC-TIO 108, a 60+/-20 MJup brown dwarf of the very young Upper Scorpius...
  • Talk
    Dissecting local (U)LIRGs: A near-IR integral field spectroscopy perspective
    The importance of Luminous and Ultraluminous infrared galaxies (U/LIRGs) in the context of the cosmological evolution of the star-formation has been well...
  • Publication
    Distribution of star formation in galactic bars as seen with Hα and stacked GALEX UV imaging
    Context. Stellar bars are known to gradually funnel gas to the central parts of disk galaxies. It remains a matter of debate why the distribution of ionized gas...