Astrophysical: Galaxies

  • Publication
    A spectroscopic survey of Abell 1703: is it a rare relaxed cluster hosting a radio halo or a usual merging system?
    We present the study of the internal dynamics of the intriguing galaxy cluster Abell 1703, a system hosting a probable giant radio halo whose dynamical status...
  • Publication
    A spectroscopic view of stellar populations in bulges of low surface brightness galaxies .
    We present the radial profiles of the age, metallicity and alpha /Fe enhancement of the stellar populations in the bulge-dominated region for a sample of eight...
  • Publication
    A Spitzer survey of Deep Drilling Fields to be targeted by the Vera C. Rubin Observatory Legacy Survey of Space and Time
    The Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST) will observe several Deep Drilling Fields (DDFs) to a greater depth and with a more rapid...
  • Publication
    A state-of-the-art analysis of the dwarf irregular galaxy NGC 6822
    We present a detailed photometric study of the dwarf irregular galaxy NGC 6822 aimed at investigating the properties of its stellar populations and, in...
  • Publication
    A Statistical Comparison of the Near Infrared Emission with the Hα Emission from the HII regions of NGC4321, NGC4736 and NGC4254
    We report on our ongoing project ``Statistical studies of HII regions in the nearby extra-galaxies''. We present an overview of our detailed study of warm dust...
  • Publication
    A statistical study of the optical spectral variability in gamma-ray blazars
    Blazars optical emission is generally dominated by relativistic jets, although the host galaxy, accretion disc, and broad-line region (BLR) may also contribute...
  • Publication
    A stellar overdensity associated with the Small Magellanic Cloud
    We report the discovery of a stellar overdensity 8° north of the centre of the Small Magellanic Cloud (SMC; Small Magellanic Cloud Northern Over-Density; SMCNOD...
  • News
    A step forward to solve the mystery of ultra-diffuse galaxies
    A study by the Instituto de Astrofísica de Canarias (IAC), led by researchers Nushkia Chamba, Ignacio Trujillo and Johan H. Knapen, reveals that the enigmatic...
  • Publication
    A strong correlation between bar strength and global star forming activity in isolated barred galaxies
    I have studied the relation between the global star formation activity and the bar structure in a sample of isolated barred galaxies. The star formation...