2010PASP..122..224S


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.19CEST14:42:46

2010PASP..122..224S - Publ. Astron. Soc. Pac., 122, 224-230 (2010/February-0)

Discerning the form of the dense core mass function.

SWIFT J.J. and BEAUMONT C.N.

Abstract (from CDS):

We investigate the ability to discern between lognormal and power-law forms for the observed mass function of dense cores in star-forming regions. After testing our fitting, goodness-of-fit, and model selection procedures on simulated data, we apply our analysis to 14 data sets from the literature. Whether the core mass function has a power-law tail or whether it follows a pure lognormal form cannot be distinguished from current data. From our simulations it is estimated that data sets from uniform surveys containing more than cores with a completeness limit below the peak of the mass distribution are needed to definitively discern between these two functional forms. We also conclude that the width of the core mass function may be more reliably estimated than the power-law index of the high mass tail and that the width may also be a more useful parameter in comparing with the stellar initial mass function to deduce the statistical evolution of dense cores into stars.

Abstract Copyright:

Journal keyword(s): Data Analysis and Techniques

Simbad objects: 8

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Number of rows : 8

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 Ori A MoC 05 38 -07.1           ~ 2757 0
2 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3156 1
3 NGC 6334 HII 17 20 51 -36 06.9           ~ 605 0
4 NAME the Pipe Nebula DNe 17 30 -25.0           ~ 351 1
5 NGC 6618 OpC 18 20 47 -16 10.3           ~ 1514 0
6 NAME Cyg X Cld 20 28 41 +41 10.2           ~ 648 1
7 NGC 7538 OpC 23 13 37 +61 30.0           ~ 834 0
8 NAME Gould Belt PoG ~ ~           ~ 752 1

    Equat.    Gal    SGal    Ecl

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2021.04.19-14:42:46

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