Resumo:
We present a study of photometry using variable elliptical apertures and isophotal apertures from
the Southern Photometric Local Universe Survey (S-PLUS) for peculiar ringed galaxies. These
objects belong to the group of irregular galaxies and have the appearance of a ring, resulting
from a collision or interactions with the environment or other galaxies. The study of these
objects provides information about the interactive and evolutionary processes that some galaxies
undergo, as well as regions where new stars are forming following these events. We analyzed the
photometric quality of S-PLUS for our sample of 117 peculiar ringed galaxies, as they exhibit
irregular morphology, extensive rings, ongoing interaction, or tidal effects. After analyzing the
apertures for the objects in our sample, we concluded that the photometric data from S-PLUS are
not applicable for all of them. Therefore, an individual inspection was carried out, separating
objects with "reliable" photometry from those without it. For the objects with photometric quality,
we compared the magnitude measurements and respective errors between the three apertures,
analyzing the dispersions and reliability of the values, as well as the characteristics of the spectral
energy distribution. For galaxies whose apertures do not cover their entire extent, we only have
information about their separate parts, making it necessary to redo the photometry for these
objects.
