2025MNRAS.536..174S


Query : 2025MNRAS.536..174S

2025MNRAS.536..174S - Mon. Not. R. Astron. Soc., 536, 174-189 (2025/January-1)

A statistical and multiwavelength photometric approach to investigate a young embedded open star cluster: NGC 6193.

SHEIKH A.H., DEKA S. and MEDHI B.J.

Abstract (from CDS):

We present a statistical and multiwavelength photometric study of the young open cluster NGC 6193. To determine cluster membership, we used an unsupervised ensemble-based machine-learning approach and identified 246 cluster members with a search radius of 30 arcmin using $Gaia$ DR3 astrometry data. From isochrone fitting using ASTECA, we found that NGC 6193 is a very young open cluster with an age of 4.22 Myr at a distance of 1.295 Kpc having metallicity, z$\sim$ 0.023 and an extinction of $A_v$$\sim$ 1.452. We analysed the mass function (MF) for NGC 6193 using the Monte Carlo method. The MF is found to be segmented at mass $\sim$0.69 M$_{\odot }$ and MF slope for the low-mass end, $\Gamma _\mathit{ B}$ = 2.09, and for the high-mass end $\Gamma _\mathit{ A}$ = -1.09. The young stellar objects (YSOs) have been identified using the $(J-H)\ \mathrm{ versus}\ (H-K)$ colour-colour diagram and the identified YSOs have masses 0.15 to 6.0 M$_{\odot }$ and ages $\le$3 Myr. We determined the extinction using the PNICER technique, which is found to be consistent with the dust structure obtained from the 22 $\mu \mathrm{m}$ dust continuum emissions map of WISE for the cluster region. We found that NGC 6193 is a dynamically young cluster with mass segregation, which may have resulted from either primordial star formation processes or early dynamical evolution. We also performed orbit analysis using GALPY and the cluster is found to be within the solar circle. Finally, at the end, we discussed the star formation scenario in the cluster region.

Abstract Copyright: © 2024 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.

Journal keyword(s): methods: statistical - stars: formation - stars: fundamental parameters - Hertzsprung-Russell and colour-magnitude - stars: pre-main-sequence - dust, extinction

Simbad objects: 10

goto Full paper

goto View the references in ADS

Number of rows : 10
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026
#notes
1 NGC 6167 OpC 16 34 41.4 -49 46 02   7.58 6.7     ~ 87 0
2 Ass Ara OB 1 As* 16 39.5 -46 46           ~ 95 0
3 GUM 53 HII 16 40 00.1 -48 51 45           ~ 98 1
4 IRAS 16362-4845 MoC 16 40 00.1 -48 51 45           ~ 20 2
5 NAME RCW 108 IR Cluster Cl* 16 40 01 -48 52.0           ~ 14 0
6 NGC 6193 OpC 16 41 14.9 -48 46 47           ~ 169 0
7 HD 150135 * 16 41 19.4443334664 -48 45 47.568769200 6.19 7.00 6.88 7.33   O6.5V((f))z 130 0
8 HD 150136 SB* 16 41 20.4155898816 -48 45 46.730465028 4.98 5.78 5.65 6.93   O3.5-4III(f*)+O6IV 201 0
9 CD-48 11071 SB* 16 41 25.8575675328 -48 45 14.265224424   8.57 8.44     B0V 30 0
10 IC 5146 OpC 21 53 29.3 +47 14 46           ~ 507 2

To bookmark this query, right click on this link: simbad:objects in 2025MNRAS.536..174S and select 'bookmark this link' or equivalent in the popup menu