2020MNRAS.496...49B


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.18CEST11:49:01

2020MNRAS.496...49B - Mon. Not. R. Astron. Soc., 496, 49-59 (2020/July-3)

Evolution of fractality and rotation in embedded star clusters.

BALLONE A., MAPELLI M., DI CARLO U.N., TORNIAMENTI S., SPERA M. and RASTELLO S.

Abstract (from CDS):

More and more observations indicate that young star clusters could retain imprints of their formation process. In particular, the degree of substructuring and rotation are possibly the direct result of the collapse of the parent molecular cloud from which these systems form. Such properties can, in principle, be washed-out, but they are also expected to have an impact on the relaxation of these systems. We ran and analysed a set of 10 hydrodynamical simulations of the formation of embedded star clusters through the collapse of turbulent massive molecular clouds. We systematically studied the fractality of our star clusters, showing that they are all extremely substructured (fractal dimension D = 1.0-1.8). We also found that fractality is slowly reduced, with time, on small scales, while it persists on large scales on longer time-scales. Signatures of rotation are found in different simulations at every time of the evolution, even for slightly supervirial substructures, proving that the parent molecular gas transfers part of its angular momentum to the new stellar systems.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): methods: numerical - stars: kinematics and dynamics - ISM: clouds - ISM: kinematics and dynamics - galaxies: star clusters: general

Simbad objects: 5

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Number of rows : 5

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 3680 0
2 RMC 136 Cl* 05 38 42.396 -69 06 03.36           ~ 1785 1
3 NAME Cha 1 MoC 11 06 48 -77 18.0           ~ 1014 1
4 NAME Lup Cloud SFR 16 03 -38.1           ~ 558 0
5 NAME the Pipe Nebula DNe 17 30 -25.0           ~ 351 1

    Equat.    Gal    SGal    Ecl

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2021.04.18-11:49:01

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