2021AJ....161..206A


Query : 2021AJ....161..206A

2021AJ....161..206A - Astron. J., 161, 206-206 (2021/April-0)

The stellar content of H72.97-69.39, a potential super star cluster in the making.

ANDERSEN M., ZINNECKER H., HIRSCHAUER A.S., NAYAK O. and MEIXNER M.

Abstract (from CDS):

Young massive clusters and super star clusters (SSCs) represent an extreme mode of star formation. Far-infrared imaging of the Magellanic Clouds has identified one potential embedded SSC, HSO BMHERICC J72.971176-69.391112 (H72.97-69.39 in short), in the southwest outskirts of the Large Magellanic Cloud. We present Gemini Flamingos 2 and GSAOI near-infrared imaging of a 3' x 3' region around H72.97-69.39 in order to characterize the stellar content of the cluster. The stellar content is probed down to 1.5 M☉. We find substantial dust extinction across the cluster region, extending up to AK of 3. Deeply embedded stars are associated with ALMA-detected molecular gas suggesting that star formation is ongoing. The high spatial resolution of the GSAOI data allows identification of the central massive object associated with the 13CO ALMA observations and detection of fainter low-mass stars around the H30α ALMA source. The morphology of the molecular gas and the nebulosity from adjacent star formation suggest they have interacted covering a region of several parsecs. The total stellar content in the cluster is estimated from the intermediate- and high-mass stellar content to be at least 10,000 M☉, less than R136 with up to 100,000 M☉ within 4.7 pc radius, but places it in the regime of an SSC. Based on the extinction determination of individual stars we estimate a molecular gas mass in the vicinity of H72.97-69.39 of 6600 M☉, suggesting more star formation can be expected.

Abstract Copyright: © 2021. The American Astronomical Society. All rights reserved.

Journal keyword(s): Star formation - Large Magellanic Cloud - Young star clusters - Pre-main sequence stars - Luminosity function

VizieR on-line data: <Available at CDS (J/AJ/161/206): table1.dat>

Status at CDS : All or part of tables of objects will not be ingested in SIMBAD.

Simbad objects: 15

goto Full paper

goto View the references in ADS

Number of rows : 15
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 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
2 NGC 604 HII 01 34 32.1 +30 47 01           ~ 608 0
3 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
4 BRHT 1b Cl* 04 51 51 -69 23.6           ~ 34 1
5 BRHT 1a Cl* 04 51 51.3 -69 23 26           ~ 42 0
6 HSO BMHERICC J072.9711-69.3911 Cl* 04 51 53.082 -69 23 28.00           ~ 16 0
7 NGC 1722 HII 04 51 53.36 -69 23 25.9           ~ 77 0
8 LHA 120-N 79 HII 04 52 00 -69 22.5           ~ 75 1
9 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
10 NAME 30 Dor Region reg 05 38.0 -69 06           ~ 261 0
11 NAME 30 Dor Nebula SFR 05 38 36.0 -69 05 11           ~ 1276 2
12 NGC 3603 OpC 11 14 57.9 -61 14 32           ~ 1136 1
13 Cl Westerlund 1 OpC 16 47 02.4 -45 51 07           ~ 655 1
14 NAME Arches Cluster Cl* 17 45 50.5 -28 49 28           ~ 792 0
15 NAME Quintuplet Cluster OpC 17 46 13.9 -28 49 48           ~ 561 0

To bookmark this query, right click on this link: simbad:objects in 2021AJ....161..206A and select 'bookmark this link' or equivalent in the popup menu