Hydrodynamics of photoionized columns in the Eagle Nebula, M 16

Williams, R.J.R., Ward-Thompson, Derek ORCID: https://orcid.org/0000-0003-1140-2761 and Whitworth, Anthony Peter ORCID: https://orcid.org/0000-0002-1178-5486 2001. Hydrodynamics of photoionized columns in the Eagle Nebula, M 16. Monthly Notices of the Royal Astronomical Society 327 (3) , pp. 788-798. 10.1046/j.1365-8711.2001.04757.x

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Abstract

We present hydrodynamical simulations of the formation, structure and evolution of photoionized columns, with parameters based on those observed in the Eagle Nebula. On the basis of these simulations we argue that there is no unequivocal evidence that the dense neutral clumps at heads of the columns were cores in the pre-existing molecular cloud. In our simulations, a variety of initial conditions leads to the formation and maintenance of near-equilibrium columns. Therefore, it is likely that narrow columns will often occur in regions with large-scale inhomogeneities, but that observations of such columns can tell us little about the processes by which they formed. The manner in which the columns in our simulations develop suggests that their evolution may result in extended sequences of radiation-induced star formation.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Subjects:	Q Science > QB Astronomy
Uncontrolled Keywords:	ISM: clouds; H ii regions; ISM: individual: M 16 (Eagle Nebula); ISM: kinematics and dynamics
Publisher:	Oxford University Press
ISSN:	0035-8711
Last Modified:	24 Oct 2022 11:17
URI:	https://orca.cardiff.ac.uk/id/eprint/47582

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