A Photometric and Dynamical Study of the Binary System HW Virginis.

WE STUDIED THE ECLIPSING BINARY SYSTEM HW VIRGINIS BY USING PHOTOMETRIC DATA. WE REDUCED THE DATA IN THE USUAL WAY AND PERFORMED THE TIME CONVERSIONS. WE EX-TRACTED THE ECLIPSE TIMES AND CONSTRUCTED ON O-C DIAGRAM. WE REPRODUCED THE LITERATURE MODEL AND FOUND THAT IT IS NOT ABLE TO REPRODUCE OUR DATA. ASA FIRST EFFORT TO FIND A NEW MODEL WE USED A GENETIC ALGORITHM TO FIND THE BEST-FIT SET OF SOLUTIONS. WE TESTED THE STABILITY OF THE LITERATURE MODEL AND FOUND IT TO BE UNSTABLE IN SHORT TIME -SCALES