The MAPPINGS III Library of Fast Radiative Shock Models

We present a new library of fully radiative shock models calculated with the MAPPINGS III shock and photoionization code. The library consists of grids of models with shock velocities in the range [image] km s super(-1) and magnetic parameters [image] of 10 super(-4) to 10 [mu]G cm super(3/2) for fi...

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Veröffentlicht in:The Astrophysical journal. Supplement series 2008-09, Vol.178 (1), p.20-55
Hauptverfasser: Allen, Mark G, Groves, Brent A, Dopita, Michael A, Sutherland, Ralph S, Kewley, Lisa J
Format: Artikel
Sprache:eng
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Zusammenfassung:We present a new library of fully radiative shock models calculated with the MAPPINGS III shock and photoionization code. The library consists of grids of models with shock velocities in the range [image] km s super(-1) and magnetic parameters [image] of 10 super(-4) to 10 [mu]G cm super(3/2) for five different atomic abundance sets and for a preshock density of 1.0 cm super(-3). In addition, solar abundance model grids have been calculated for densities of 0.01, 0.1, 10, 100, and 1000 cm super(-3 ) with the same range in [image] and [image]. Each model includes components of both the radiative shock and its photoionized precursor, ionized by the extreme ultraviolet (EUV) and soft X- ray radiation generated in the radiative gas. We present the details of the ionization structure, the column densities, and the luminosities of the shock and its precursor. Emission-line ratio predictions are separately given for the shock and its precursor as well as for the composite shock+precursor structure to facilitate comparison with observations in cases in which the shock and its precursor are not resolved. Emission-line ratio grids for shock and shock+precursor are presented on standard line ratio diagnostic diagrams, and we compare these grids to observations of radio galaxies and a sample of AGNs and star-forming galaxies from the Sloan Digital Sky Survey. This library is available online, along with a suite of tools to enable the analysis of the shocks and the easy creation of emission line ratio diagnostic diagrams. These models represent a significant increase in parameter space coverage over previously available models and, therefore, provide a unique tool in the diagnosis of emission by shocks.
ISSN:0067-0049
1538-4365
DOI:10.1086/589652