AAS 199th meeting, Washington, DC, January 2002
Session 93. Data Analysis Challenges in Solar Stellar Astrophysics
Display, Wednesday, January 9, 2002, 9:20am-6:30pm, Exhibit Hall

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[93.02] Publicly Available Numerical Codes for Modeling the X-ray and Microwave Emissions from Solar and Stellar Activity

G. D. Holman (NASA/GSFC), J. T. Mariska (NRL), J. M. McTiernan (UCB), L. Ofman (CUA), V. Petrosian (Stanford), R. Ramaty (NASA/GSFC)

We have posted numerical codes on the Web for modeling the bremsstrahlung x-ray emission and the gyrosynchrotron radio emission from solar and stellar activity. In addition to radiation codes, steady-state and time-dependent Fokker-Planck codes are provided for computing the distribution and evolution of accelerated electrons. A 1-D hydrodynamics code computes the response of the stellar atmosphere (chromospheric evaporation). A code for modeling gamma-ray line spectra is also available. On-line documentation is provided for each code.

These codes have been developed for modeling results from the High Energy Solar Spectroscopic Imager (HESSI) along with related microwave observations of solar flares. Comprehensive codes for modeling images and spectra of solar flares are under development. The posted codes can be obtained on NASA/Goddard's HESSI Web Site at


This work is supported in part by the NASA Sun-Earth Connection Program.

If you would like more information about this abstract, please follow the link to http://hesperia.gsfc.nasa.gov/hessi/modelware.htm. This link was provided by the author. When you follow it, you will leave the Web site for this meeting; to return, you should use the Back comand on your browser.

The author(s) of this abstract have provided an email address for comments about the abstract: holman@stars.gsfc.nasa.gov

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