INT monitoring survey of Local Group dwarf galaxies: star formation
  history and chemical enrichment
  The Local Group (LG) hosts many dwarf galaxies with diverse physical
characteristics in terms of morphology, mass, star formation, and metallicity.
To this end, LG can offer a unique site to tackle questions about the formation
and evolution of galaxies by providing detailed information. While large
telescopes are often the first choices for such studies, small telescope
surveys that perform dedicated observations are still important, particularly
in studying bright objects in the nearby universe. In this regard, we conducted
a nine epoch survey of 55 dwarf galaxies called the Local Group dwarf galaxies
survey using the 2.5m Isaac Newton Telescope (INT) in La Palma to identify
Long-Period Variable (LPV) stars, namely Asymptotic Giant Branch (AGB) and Red
Super Giant (RSG) stars. AGB stars formed at different times and studying their
radial distribution and mass-loss rate can shed light on the structure
formation in galaxies. To further investigate the evolutionary path of these
galaxies, we construct their star formation history (SFH) using the LPV stars,
which are at the final stages of their evolution and therefore experience
brightness fluctuations on the timescales between hundred to thousand days. In
this paper, we present some of the results of the Local Group dwarf galaxies
survey.
