The search of the stellar clusters in vicinity of YSOs with high and middle masses

TL;DR

This study identifies dense stellar clusters near 20 high and middle mass YSOs using UKIDSS GPS data, revealing 13 clusters including 5 newly detected, with varying sizes and densities.

Contribution

It presents new detections of stellar clusters around high and middle mass YSOs using UKIDSS GPS data, expanding knowledge of their environments.

Findings

Clusters found in 13 out of 20 YSO regions.

5 clusters are newly detected.

Cluster sizes range from 0.2 to 2.7 pc with densities from 3 to 1000 stars/arcmin^2.

Abstract

The results of the searching on the bases of GPS UKIDSS survey's data of dense compact stellar clusters in the vicinity of 20 YSOs with high and middle masses are presented. Totally we have revealed clusters in 13 areas. Around 5 objects (IRAS 18151-1208, IRAS 18316-0602, IRAS 19110+1045, IRAS 19213+1723, IRAS 20056+3350) they are newly detected. The radii and stellar density have significant gradient: from 0.2 to 2.7 pc and from 3 to 1000 stars/arcmin^2 respectively.