2014MNRAS.443..230H


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.19CEST15:40:32

2014MNRAS.443..230H - Mon. Not. R. Astron. Soc., 443, 230-240 (2014/September-1)

Accretion and diffusion time-scales in sheets and filaments.

HEITSCH F. and HARTMANN L.

Abstract (from CDS):

A comparison of accretion and (turbulent) magnetic diffusion time-scales for sheets and filaments demonstrates that dense star-forming clouds generally will - under realistic conditions - become supercritical due to mass accretion on time-scales at least an order of magnitude shorter than ambipolar and/or turbulent diffusion time-scales. Thus, ambipolar or turbulent diffusion - while present - is unlikely to control the formation of cores and stars.

Abstract Copyright: © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)

Journal keyword(s): gravitation - MHD - methods: analytical - stars: formation - ISM: clouds

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 Barnard 211 DNe 04 17 35 +27 43.1           ~ 100 0
2 LDN 1506 DNe 04 20.0 +25 17           ~ 75 0
3 Barnard 213 DNe 04 20 51 +27 16.3           ~ 168 0
4 Barnard 216 DNe 04 24.0 +26 37           ~ 44 0
5 Barnard 217 DNe 04 27 46.5 +26 17 52           ~ 88 0
6 Barnard 18 Cld 04 31.2 +24 21           ~ 50 0
7 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 3681 0
8 NAME the Pipe Nebula DNe 17 30 -25.0           ~ 351 1

    Equat.    Gal    SGal    Ecl

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2021.04.19-15:40:32

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