Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006ap%26ss.304..153j&link_type=abstract
Astrophysics and Space Science, Volume 304, Issue 1-4, pp. 153-156
Astronomy and Astrophysics
Astrophysics
Binaries: Eclipsing, Stars: Individual (Sv Cam), Late-Type, Activity, Spots
Scientific paper
To synthesise images of stellar photospheres with high spot filling factors, we model an extrapolated solar size distribution of spots on an immaculate SV Cam. These models of starspot coverage show that the primary star is peppered with a large number of subresolution spots. Using these model starspot distributions we generate a photometric lightcurve, which is then used as input to an maximum-entropy eclipse mapping code, that is based on chi-squared minimisation. I solve for the system parameters to show the effect of dense spot coverage on the derived system parameters, and show that surface brightness distributions reconstructed from these lightcurves have distinctive spots on the primary star at its quadrature points. It is concluded that two-spot modelling or chi-squared minimisation techniques are more susceptible to spurious structures being generated by systematic errors, arising from incorrect assumptions about photospheric surface brightness, than simple Fourier analysis of the light-curves.
No associations
LandOfFree
Modelling Eclipsing Binaries with Dense Spot Coverage does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Modelling Eclipsing Binaries with Dense Spot Coverage, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modelling Eclipsing Binaries with Dense Spot Coverage will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1131424