Modeling Multi-Wavelength Observations of Single and Binary Stars with SIM: How to Directly Determine Spot Parameters and Giant Star Inclinations

Details Modeling Multi-Wavelength Observations of Single and Binary Stars with SIM: How to Directly Determine Spot Parameters and Giant Star Inclinations Modeling Multi-Wavelength Observations of Single and Binary Stars with SIM: How to Directly Determine Spot Parameters and Giant Star Inclinations

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21538506c&link_type=abstract

American Astronomical Society, AAS Meeting #215, #385.06; Bulletin of the American Astronomical Society, Vol. 42, p.600

Astronomy and Astrophysics

Astronomy

Scientific paper

SIM Lite is currently designed to have 82 spectral channels, which will enable multi-wavelength observations of astrometric motion. We present a code, REFLUX, which utilizes the ELC code (Orosz and Hauschildt, 2000) to perform fully realistic models of single and binary star systems and determine the flux-weighted reflex motions for multiple wavelengths. We focus principally on two interesting properties that will be able to be determined with multi-wavelength measurements from SIM. The first is the determination of absolute inclination for single giant stars. The second is the determination of star spot location and brightness for both single stars and stars in binary systems, including both dwarfs and giants. More information on REFLUX and a web interface for running the code can be found at http://astronomy.nmsu.edu/jlcough/reflux.html. This work is supported by a NSF Graduate Research Fellowship and the SIM Science Studies program.

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