Using Mappings Registration Support FAQ Chronology




Pre-run shock grids


Shock models are extremely difficult to run. It is therefore not possible to run shock models from this website. However, we have made our recent shock grid available here. The wide range of parameters used for the shock grid should be suitable for most purposes. Users wishing to run shock models for parameters not covered by the grid should either download the Mappings source code, or contact Ralph Sutherland. All users should become familiar with the papers by Sutherland & Dopita below. To avoid errors, it is advisable to run new shock models in collaboration with Ralph Sutherland and/or Mike Dopita.

Pre-run grids are available for shock models with a wide range of shock velocities from v=100 to 1000 km/s, and four metallicities: lmc, smc, solar, twice solar. These models were run by Ralph Sutherland and Mark Allen and are as yet, unpublished. Please bear this in mind when using the shock models and treat them as preliminary grids. The models available include the precursor and shock emission for all shock velocities (100, 150, 175, 200, 225, 250, 275, 300, 325, 350, 400, 450, 500, 550, 600, 650, 700, 800, 900, 1000 km/s). The spectrum files include four spectra (Fnu vs E) for each velocity:
XXXX0001.sou = shock downstream, through the back
XXXX0002.sou = shock upstream, out the front
XXXX0003.sou = precursor + shock upstream absorbed through precursor
XXXX0004.sou = precursor only

Use of these shock grids requires a reference to Allen et al. (2004, in prep.)

For more information on Mappings shock models, please see Sutherland & Dopita (1993, ApJS, 88, 253), Dopita & Sutherland (1996, ApJS, 102, 161), and Dopita & Sutherland (1995, ApJ, 455, 468).
(May 25th 2004) - Lisa Kewley