AAS 200th meeting, Albuquerque, NM, June 2002
Session 57. Living with a Star
Display, Wednesday, June 5, 2002, 10:00am-7:00pm, SW Exhibit Hall

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[57.08] Solar Irradiance Variability - comparison of models and observations

P. A. Fox (HAO/NCAR)

Over the past decade, regular measurement programs for parts of the solar spectrum have been established. In recent years substantial progress has also been made on the physical understanding of these measurements. To refine our understanding and to make quantitative estimates of this variability requires a study of the entire solar spectrum. Our approach to this requirement is to combine empirical image analysis with the theory for emission, absorption, and transfer of radiation in the solar atmosphere. The goal is the successful combination of observed solar images with semi-empirical models and theory for calculation of a mixed line+continuum spectrum emitted from realistic representations of the observed solar disk. We present the latest results from the SunRISE spectral synthesis model in specific spectral bands in the UV, visible, and near-IR, and compare them to related observations (including those from the RISE/PSPT instrument).

NCAR is sponsored by the National Science Foundation. This work is sponsored by the NSF RISE program.

The author(s) of this abstract have provided an email address for comments about the abstract: pfox@ucar.edu

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Bulletin of the American Astronomical Society, 34
© 2002. The American Astronomical Soceity.