Astrophysical: Photometry

  • Publication
    The 65 Day Period in 3C 66A during Bright State
    Historically, 3C 66A has been considered a relative quiescent blazar. For that reason, 3C 66A was selected as a comparison source for OJ 287 in the OJ-94...
  • Publication
    The 99942 Apophis observational campaign at the Canary Islands observatories during its 2021 close approach: preliminary results
    Potentially hazardous asteroid (PHA) 99942 Apophis, with a diameter 380-393 m (Licandro et al. 2016), came to its 2021 close approach on March 6, 2021, at 01:06...
  • Publication
    The ACS LCID Project. III. The Star Formation History of the Cetus dSph Galaxy: A Post-reionization Fossil
    We use deep HST/ACS observations to calculate the star formation history (SFH) of the Cetus dwarf spheroidal (dSph) galaxy. Our photometry reaches below the...
  • Publication
    The ACS LCID Project. IX. Imprints of the Early Universe in the Radial Variation of the Star Formation History of Dwarf Galaxies
    Based on Hubble Space Telescope observations from the Local Cosmology from Isolated Dwarfs project, we present the star formation histories, as a function of...
  • Publication
    The ACS LCID Project. V. The Star Formation History of the Dwarf Galaxy LGS-3: Clues to Cosmic Reionization and Feedback
    We present an analysis of the star formation history (SFH) of the transition-type (dIrr/dSph) Local Group galaxy LGS-3 (Pisces) based on deep photometry...
  • Publication
    The ACS LCID Project. VI. The Star Formation History of The Tucana dSph and The Relative Ages of the Isolated dSph Galaxies
    We present a detailed study of the star formation history (SFH) of the Tucana dwarf spheroidal galaxy. High-quality, deep HST/ACS data, collected in the...
  • Publication
    The ACS LCID Project. X. The Star Formation History of IC 1613: Revisiting the Over-cooling Problem
    We present an analysis of the star formation history (SFH) of a field near the half-light radius in the Local Group dwarf irregular galaxy IC 1613 based on deep...
  • Publication
    The ACS LCID Project. XI. On the Early Time Resolution of SFHs of Local Group Dwarf Galaxies: Comparing the Effects of Reionization in Models with Observations
    The analysis of the early star formation history (SFH) of nearby galaxies, obtained from their resolved stellar populations, is relevant as a test for...
  • Publication
    The ALHAMBRA survey: 2D analysis of the stellar populations in massive early-type galaxies at z < 0.3
    We present a technique that permits the analysis of stellar population gradients in a relatively low-cost way compared to integral field unit (IFU) surveys. We...