2009ApJ...698.1659C

Query : 2009ApJ...698.1659C

2009ApJ...698.1659C - Astrophys. J., 698, 1659-1665 (2009/June-3)

Indicators for cluster survivability in a dispersing cloud.

CHEN H.-C. and KO C.-M.

Abstract (from CDS):

We use N-body simulations to survey the response of embedded star clusters to the dispersal of their parent molecular cloud. The final stages of the clusters can be divided into three classes: the cluster (1) is destroyed, (2) has a loose structure, and (3) has a compact core. We are interested in three of the governing parameters of the parent cloud: (1) the mass, (2) the size, and (3) the dispersing rate. It is known that the final stage of the cluster is well correlated with the star formation efficiency (SFE) for systems with the same cluster and cloud profile. We deem that the SFE alone is not enough to address systems with clouds of different sizes. Our result shows that the initial cluster-cloud mass ratio at a certain Lagrangian radius and the initial kinetic energy are better indicators for the survivability of embedded clusters.

Abstract Copyright: ∼

Journal keyword(s): galaxies: star clusters - methods: N-body simulations - open clusters and associations: general

Simbad objects: 1

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Number of rows : 1

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	NAME Arches Cluster	Cl*	17 45 50.5	-28 49 28						~	792	0

Query : 2009ApJ...698.1659C

Basic data :

NAME Arches Cluster -- Cluster of Stars
Other object types:	`X (2CXO,SWIFT,...)`, `Cl* (2013A&A,[BDB2003])`, `HII ([GSL2002])`, `IR ([NHS93])`
ICRS coord. (ep=J2000) :	`17 45 50.5 -28 49 28 [ ] D 2002ApJ...566..880G`
FK4 coord. (ep=B1950 eq=1950) :	`17 42 40.1 -28 48 19 [ ]`
Gal coord. (ep=J2000) :	`000.1207 +00.0168 [ ]`
Proper motions mas/yr :	`-0.80 -1.89 [0.032 0.021 0] C` `2022ApJ...939...68H`
Angular size (arcmin):	`0.38 0.38 90 (~) D` `2013A&A...560A..76M`

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`NAME Arches Cluster`	`GAL 000.12+00.02`	`[BDB2003] G000.12+00.01`
`2CXO J174550.4-284919`	`SWIFT J174550.3-284920`	`[GSL2002] 61`
`GAL 000.121+00.017`	`3XMM J174550.4-284919`	`[NHS93] 17`

References (792 between 1850 and 2026) (Total 792)
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