SIMBAD references

2016ApJ...820..119K - Astrophys. J., 820, 119 (2016/April-1)

KIM 3: an ultra-faint star cluster in the constellation of Centaurus.

KIM D., JERJEN H., MacKEY D., DA COSTA G.S. and MILONE A.P.

Abstract (from CDS):

We report the discovery of an ultra-faint star cluster in the constellation of Centaurus. This new stellar system, Kim 3, features a half-light radius of rh = 2.29–0.52+1.28 pc and a total luminosity of MV= +0.7±0.3. Approximately 26 stars are identified as candidate member stars down to four magnitudes below the main-sequence turn-off, which makes Kim 3 the least luminous star cluster known to date. The compact physical size and extreme low luminosity place it close to faint star clusters in the size-luminosity plane. The stellar population of Kim 3 appears to be relatively young (9.5–1.7+3.0 Gyr) and metal-poor ([Fe/H] -1.6–0.30+0.45) at a heliocentric distance of 15.14–0.28+1.00 kpc. The cluster lacks a well-defined center, and a small but prominent group of stars consistent with the Kim 3 isochrone is present approximately 9.7 pc in projection south of the cluster center. Both are signs of the cluster being in the final stage of tidal disruption.

Abstract Copyright:

Journal keyword(s): Galaxy: halo - globular clusters: general - globular clusters: individual: Kim 3

Status at CDS:  

Simbad objects: 12

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:2016ApJ...820..119K and select 'bookmark this link' or equivalent in the popup menu


2020.06.01-07:53:29

© Université de Strasbourg/CNRS

    • Contact