2015MNRAS.451.3664P

Query : 2015MNRAS.451.3664P

2015MNRAS.451.3664P - Mon. Not. R. Astron. Soc., 451, 3664-3670 (2015/August-3)

On the spatial distributions of stars and gas in numerical simulations of molecular clouds.

PARKER R.J. and DALE J.E.

Abstract (from CDS):

We compare the spatial distribution of stars which form in hydrodynamical simulations to the spatial distribution of the gas, using the Q-parameter. The Q-parameter enables a self-consistent comparison between the stars and gas because it uses a pixelated image of the gas as a distribution of points, in the same way that the stars (sink particles in the simulations) are a distribution of points. We find that, whereas the stars have a substructured, or hierarchical spatial distribution (Q ∼0.4 -0.7), the gas is dominated by a smooth, concentrated component and typically has Q ∼0.9. We also find no statistical difference between the structure of the gas in simulations that form with feedback, and those that form without, despite these two processes producing visually different distributions. These results suggest that the link between the spatial distributions of gas, and the stars which form from them, is non-trivial.

Abstract Copyright: © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2015)

Journal keyword(s): methods: numerical - stars: formation - ISM: structure - star clusters: 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 NGC 346 Cl* 00 59 04.4000 -72 10 39.000           ~ 547 0

Query : 2015MNRAS.451.3664P

Basic data :
NGC 346 -- Cluster of Stars
Other object types: otypes_help 		Cl* (Cl), G (ESO), EmO (LHA), IR ([CLC2000])
ICRS coord. (ep=J2000) : 		00 59 04.4000 -72 10 39.000 (Optical) [ ] E 1933BHarO.891....2C
FK4 coord. (ep=B1950 eq=1950) : 		00 57 23.3052 -72 26 49.415 [ ]
Gal coord. (ep=J2000) : 		302.1066919 -44.9385160 [ ]
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 1
: 567 		: 20743 Display criteria :

Identifiers (8) :
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NGC 346 Cl Lindsay 60 LHA 115-N 66A [CLC2000] peak C
Cl Kron 39 ESO 51-10 SMC ASS 45 [CLC2000] peak F

References (547 between 1850 and 2026) (Total 547)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Herschel : 6    IUE : 18   

   

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Data at NED - NASA/IPAC Extragalactic Database : NGC 346

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NGC 346

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