SPECTRAL CHRACTERIZATION OF MICROVARIABILITY IN QUASARS

摘要

These are the preliminary results of our BVR, photometric study. The quasar 1628.5+3808 is shown here only for the sake of illustration of our research. This object showed variations in the three bands. It was observed with a 1.5-meter telecope from, the Observatorio Astronomico Nacional at San Pedro Martir, Mexico. Only non-variable field stars were taken into account to carry out the differential photometry.