The photometric study of the non-relaxed cluster "Mayer 3"

TL;DR

This study comprehensively analyzes the open star cluster Mayer 3 using optical and infrared data, estimating its physical parameters and concluding it is not yet dynamically relaxed.

Contribution

It provides new detailed astrophysical parameters of Mayer 3 using combined optical and infrared observations, including its age, mass, and dynamical state.

Findings

Mayer 3 is a young, non-relaxed cluster.

The cluster's distance from the Sun is estimated.

The total mass and luminosity functions are determined.

Abstract

The astrophysical parameters of the open star cluster Mayer 3 have been estimated using the Newtonian focus (f/4.84) of the 1.88 m Telescope of Kottamia Observatory in Egypt. The VRI observations have been carried out down to a limiting magnitude of V ~ 20 mag. To emphasize the main astrophysical parameters, Near-Infra Red, Two Micron All Sky Survey (2MASS-JHK) database has been used. Analyzing the color-magnitude diagrams and radial density distribution of Mayer 3, the cluster's age, reddening, distance from the Sun, the limited border, core and tidal radii are evaluated. The photometrical membership, the Galactocentric coordinates from the Galactic center and Galactic plane are estimated. Luminosity - mass functions, and the total mass of the cluster are established. Finally, the relaxation time estimation conclude that Mayer 3 is not dynamically relaxed yet.