José Alejo Molina Lera
Data mining: Study of five open clusters using optical and infrared surveys

We selected a set of 305 open clusters in SDSS images and in order to study them in a systematic and homogeneous way we constructed a set of routines in Python language. For each clusters we perform aperture photometry on the images in the u, g, r, i, z bands and correlate this data with the APASS, WISE and 2MASS catalogs, and available spectroscopic information. We use a statistical method to establish its centers and opt for a free geometry to delimit the belonging region of stars to each open cluster. In this work we present a preliminary multiband analysis of five open clusters of the sample: we estimate their fundamental parameters (coordinates, size, redness, distance, age, etc); In some of them we identified several YSO candidates and/or PMS star population. In addition, we performed a comparison of our results with two of the clusters that have several previous studies, which allowed us to verify our work methodology.

Georgina Coldwell, María Daniela Galdeano
Overdensity of galaxies in the VVV survey

We present the results obtained in the analysis of tile b204 of the infrared VVV survey (VISTA Variables in the Milky Way). In this region of the sky we analyzed the photometric data and the spatial distribution of a sample of 800 objects with characteristics typical of galaxies, which were confirmed visually. We found 2 regions of significant overdensity whose red sequences are well defined in the color-magnitude diagram. This result would indicate the presence of 2 new galaxy cluster candidates in an area of 1.68 square degrees.