A Reinvestigation of the Physical Properties of Pismis 3 based on 2MASS Photometry

TL;DR

This study uses 2MASS near-infrared photometry to refine and re-estimate the physical parameters of the open star cluster Pismis 3, including some parameters for the first time.

Contribution

It provides new and re-determined physical parameters of Pismis 3 using 2MASS data, including some for the first time.

Findings

Some physical parameters are estimated for the first time.

Other parameters are refined and re-determined.

The study demonstrates the effectiveness of near-IR photometry for cluster analysis.

Abstract

As a continuation of a series of work, we aim to refine and re-determine the physical parameters of previously rarely or un-studied open star clusters with good quality CMDs using Near-IR JHK photometry. Here we present a morphological analysis of the 2MASS database (the digital Two Micron All Sky Survey) for the open cluster Pismis 3. Some of the physical parameters are estimated for the first time, and some others, re-determined.