Optical photometry of the eclipsing Large Magellanic Cloud supersoft source CAL 87
Optical photometry of the eclipsing Large Magellanic Cloud supersoft source CAL 87
We present optical photometry of the eclipsing supersoft source, CAL87. These observations comprise long term data accumulated as a by-product of the MACHO Project, and high speed white light photometry of a single eclipse. We (i) derive an improved ephemeris of To = HJD 2450111.5144(3) + 0.44267714(6)E for the time …